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Digi 24XStream Product manual | Manualzz
XStream™ OEM RF Module
Product Manual v4.2B5
For XStream OEM RF Module Part Numbers:
X09-001…
X09-009…
X09-019…
X24-009…
X24-019…
900 MHz and 2.4 GHz OEM RF Modules by Digi International Inc.
XH9-001…
XH9-009…
XH9-019…
XStream™ OEM RF Module – Product Manual v4.2B5
XStream OEM RF Module – Product Manual v4.2B5
(Part number 90002006 B)
Revision
B
Date
Description
10/15/14
Minor changes and new part number
© 2014 Digi International Inc. All rights reserved.
Digi, Digi International Inc., the Digi logo, and XStream® are
trademarks or registered trademarks of Digi International Inc.
in the United States and other countries worldwide. All other
trademarks mentioned in this document are the property of
their respective owners.
Information in this document is subject to change without
notice and does not represent a commitment on the part of
Digi International Inc. Digi provides this document “as is,”
without warranty of any kind, expressed or implied,
including, but not limited to, the implied warranties of fitness
or merchantability for a particular purpose. Digi may make
improvements and/or changes in this manual or in the
product(s) and/or the program(s) described in this manual at
any time.
© 2014 Digi International Inc.
2
XStream™ OEM RF Module – Product Manual v4.2B5
Contents
1. XStream OEM RF Module
1.1. Features
4
4
Appendix A: Agency Certifications
FCC Certification
1.1.1. Worldwide Acceptance
4
32
OEM Labeling Requirements
1.2. Specifications 5
Antenna Usage 33
1.3. Pin Signals 6
FCC-Approved Antennas 34
1.4.1. Timing Specifications 7
Appendix B: Development Guide
1.5. Mechanical Drawings 8
XStream OEM Development Kit Contents
2. RF Module Operation
9
2.2.1. Idle Mode
2.2.3. Receive Mode
11
40
16
18
3.1. Hands-on Programming Examples
3.1.1. AT Command Example
18
3.1.2. Binary Command Example
3.2. Command Reference Table
3.3. Command Descriptions
18
37
41
43
44
46
Appendix C: Additional Information
3. RF Module Configuration
36
41
RS-485 (4-wire) and RS-422 Operation
X- CTU Software
36
36
RS-485 (2-wire) Operation
11
13
© 2014 Digi International Inc.
39
Antennas
RS-232 Operation
13
2.2.5. Command Mode
Adapters
Interfacing Protocol
11
2.2.2. Transmit Mode
2.2.4. Sleep Mode
9
10
2.2. Modes of Operation
Interfacing Hardware
Digi RS-232/485 Interface Board
9
2.1.1. UART-Interfaced Data Flow
2.1.2. Flow Control
33
IC (Industry Canada) Certification 35
1.4. Electrical Characteristics 7
2.1. Serial Communications
32
47
1-Year Warranty 47
Ordering Information 47
Contact Digi 48
18
19
20
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XStream™ OEM RF Module – Product Manual v4.2B5
1. XStream OEM RF Module
The 9XStream (900 MHz) and 24XStream (2.4 GHz) OEM RF Modules
were engineered to afford OEMs and integrators an easy-to-use RF
solution that provides reliable delivery of critical data between
remote devices. Out of box, the modules come configured to sustain
reliable long range wireless links.
The XStream Module is a drop-in wireless solution that transfers a
standard asynchronous serial data stream.
1.1. Features
Long Range
Easy-to-Use
9XStream (900 MHz) Range:
•
Indoor/Urban: up to 1500’ (450 m)
•
Outdoor line-of-sight: up to 7 miles (11 km)
w/ 2.1 dBm dipole antenna
•
Outdoor line-of-sight: up to 20 miles (32 km)
w/ high gain antenna
24XStream (2.4 GHz) Range:
•
Indoor/Urban: up to 600’ (180 m)
•
Outdoor line-of-sight: up to 3 miles (5 km)
w/ 2.1 dBm dipole antenna
•
Outdoor line-of-sight: up to 10 miles (16 km)
w/ high gain antenna
Receiver Sensitivity: -110 dBm (900 MHz),
-105 dBm (2.4 GHz)
Advanced Networking and Security
True peer-to-peer (no “master” required),
point-to-point, point-to-multipoint, multidrop
Retries and Acknowledgements
5 VDC (± 0.25 V) power supply
Continuous RF data stream
up to 19.2 kbps
No configuration required
Advanced configurations available
through standard AT Commands
Portable
(small form factor easily designed into a
wide range of data radio systems)
Software-selectable serial interfacing
rates
MODBUS, CTS, RTS, DTR, DCD (and more)
I/O Support
Support for multiple data formats
(parity, start and stop bits, etc.)
XII™ Interference Immunity
Power-saving Sleep Modes
7 hopping channels, each with over 65,000
available network addresses
FHSS (Frequency Hopping Spread Spectrum)
1.1.1. Worldwide Acceptance
FCC Certified (USA) – Refer to Appendix A for FCC Requirements.
Systems that include XStream Modules inherit Digi’s FCC Certification
ISM (Industrial, Scientific and Medical) frequency band
Manufactured under ISO 9001:2000 registered standards
9XStream (900 MHz) OEM RF Modules are approved for use in US, Canada,
Australia, Israel (and more).
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
1.2. Specifications
Table 1.1. XStream OEM RF Module Specifications
Specification
9XStream (900 MHz) OEM RF Module
24XStream (2.4 GHz) OEM RF Module
up to 1500’ (450 m)
up to 600’ (180 m)
Up to 7 miles (11 km) w/ dipole antenna
Up to 20 miles (32 km) w/ high-gain antenna
Up to 3 miles (5 km) w/ dipole antenna
Up to 10 miles (16 km) w/ high-gain antenna
125 – 65,000 bps
(Software selectable, includes non-standard baud rates)
125 – 65,000 bps
(Software selectable, includes non-standard baud rates)
Performance
Indoor/Urban Range
Outdoor line-of-sight Range
Interface Data Rate
Throughput Data Rate
RF Data Rate
Transmit Power Output
Receiver Sensitivity
9,600 bps
19,200 bps
9,600 bps
19,200 bps
10,000 bps
20,000 bps
10,000 bps
20,000 bps
100 mW (20 dBm)
100 mW (20 dBm)
50 mW (17 dBm)
50 mW (17 dBm)
-110 dBm
-107 dBm
-105 dBm
-102 dBm
Power Requirements
Supply Voltage
5 VDC (± 0.25 V) regulated
5 VDC (± 0.25 V) regulated
Receive Current
50 mA
80 mA
Transmit Current
140 mA
150 mA
Power Down Current
< 26 µA
< 26 µA
902-928 MHz
2.4000-2.4835 GHz
General
Frequency Range
Spread Spectrum
Frequency Hopping, Wide band FM modulator
Network Topology
Peer-to-Peer, Point-to-Multipoint, Point-to-Point, Multidrop
Channel Capacity
7 hop sequences share 25 frequencies
Serial Data Interface
CMOS UART
Physical Properties
Module Board Size
1.600” x 2.825” x 0.350” (4.06 cm x 7.18 cm x 0.89 cm)
Weight
Connector
Operating Temperature
0.8 oz (24 g)
11-pin and 4-pin, 0.1” spaced male Berg-type headers
0 to 70º C (commercial), -40 to 85º C (industrial)
Antenna
Integrated Wire (optional)
¼ wave monopole, 3” (7.62 cm) length, 1.9 dBi Gain
Connector (optional)
Reverse-polarity SMA or MMCX
Impedance
50 ohms unbalanced
Certifications (visit www.digi.com for complete list)
FCC Part 15.247
Industry Canada (IC)
© 2014 Digi International Inc.
OUR9XSTREAM
OUR-24XSTREAM
4214A-9XSTREAM
4214A 12008
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XStream™ OEM RF Module – Product Manual v4.2B5
1.3. Pin Signals
Figure 1.1. XStream OEM RF Module Pin Numbers (bottom view, pins protruding)
Table 1.2. J1 Pin Signal Descriptions
(Low‐asserted signals distinguished with a horizontal line over signal name.)
Module
Pin
1
Signal Name
DO2 /
/ RS485 Enable
I/O
When Active
O*
low
2
DI3 / SLEEP
I*
high
3
DO (data out)
O*
n/a
4
DI (data in)
I
n/a
I**
low
I*
low
O
high
5
DI2 /
/ CMD
6
7
8
DO3 / RX LED
/ PWR
9
10
11
*
**
***
VCC
GND
O
low
high
I***
low
I
-
-
Function
(clear-to-send) flow control – When pin is driven low,
UART host is permitted to send serial data to the module.
Refer to the Serial Communications (p9) and CS Command
(p21) sections for more information.
RS-485 Enable – To configure this pin to enable RS-485 (2wire or 4-wire) communications, refer to the Serial
Communications (p9) and CS Command (p21) sections.
By default, DI3 pin is not used. To configure this pin to
support Sleep Modes, refer to the Sleep Mode (p13), SM
Command (p29) and PW Command (p26) sections.
Serial data exiting the module (to the UART host). Refer to
the Serial Communications (p9) section for more information.
Serial data entering the module (from UART host). Refer to
the Serial Communications (p9) section for more information.
(request-to-send) flow control – By default, this pin is not
used. To configure this pin to regulate the flow of serial data
exiting the module, refer to the Serial Communications (p9)
and RT Command (p28) sections.
CMD –Refer to Binary Commands (p17) and RT Command
(p28) sections to enable binary command programming.
Re-boot module.
Pin is driven high during RF data reception; otherwise, the
pin is driven low. Refer to the CD Command (p21) to enable.
- Pin pulses low during RF transmission.
PWR – Indicates power is on and module is not in Sleep
Mode.
Pin can be used as a backup method for entering Command
Mode during power-up. Primary method is with “+++”. Refer
to the AT Commands (p16) section for more information.
5 VDC regulated (± 0.25)
Ground
Module has 10K Ω internal pull‐up resistor
Module has 10K Ω internal pull‐down resistor
Module has 100K Ω internal pull‐up resistor
Note: When integrating the XStream Module with a Host PC Board, all lines that are not used should
be left disconnected (floating).
Table 1.3. J2 Pin Signal Descriptions
Module
Pin
1
2
3
4
Signal Name
reserved
GND
GND
GND
J2 Pins are used primarily for mechanical stability and may be left disconnected.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
1.4. Electrical Characteristics
Figure 1.2. System Block Diagram
Basic wireless link between hosts
The data flow sequence is initiated when the first byte of data is received in the DI Buffer of the
transmitting module (XStream Module A). As long as XStream Module A is not already receiving
RF data, data in the DI Buffer is packetized, then transmitted over-the-air to XStream Module B.
1.4.1. Timing Specifications
Figure 1.3. Timing Specifications (“A” and “B” refer to Figure 1.2.)
Table 1.4. AC Characteristics (SY parameter = 0, symbols correspond to Figure 1.2 and Figure 1.3.)
19200 baud rate
(32 byte packet)
Symbol
Description
TTX
Latency from the time data is
transmitted until received
TTL
Time that /PWR pin is
driven low
TRL
Time that RX LED pin is
driven high
13.6 ms
TST
Channel Initialization Time
35.0 ms
© 2014 Digi International Inc.
54.0 ms
8.4 ms
19200 timing
(B=number of bytes)
For 0 < B < 64,
T = 41.6 + (0.4 * B) ms
For B > 63,
T = 66.8 ms
For 0 < B < 14,
T = 3.24 + (0.4 * B) ms
For B > 13,
T = 8.48 ms
For 0 < B < 65,
T = 0.79 + (0.408 * B)
For B > 64,
T = 26.9 ms
35.0 ms
9600 baud rate
(32 byte packet)
72.0 ms
16.8 ms
25.6 ms
35.0 ms
9600 timing
(B=number of bytes)
For 0 < B < 40,
T = 46.27 + (0.73 * B) ms
For B >= 39 bytes,
T = 74.80 ms
For 0 < B < 14,
T = 6.50 + (0.8 * B) ms
For B > 13,
T = 16.80 ms
For 0 < B < 37,
T = 1.63 + (0.794 * B)
For B > 36,
T = 30.2 ms
35.0 ms
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XStream™ OEM RF Module – Product Manual v4.2B5
Table 1.5. DC Characteristics (Vcc = 4.75 – 5.25 VDC)
Symbol
Parameter
Condition
Min
VIL
Input Low Voltage
All input signals
VIH
Input High Voltage
All except
pin
VIH2
Input High Voltage
pin *
VOL
Output Low Voltage
IOL = 20 mA,
Vcc = 5V
VOH
Output High Voltage
IOH = -20 mA,
Vcc = 5V
IIL
Input Leakage
Current I/O Pin
Vcc = 5.5V, pin low
(absolute value)
3
µA
IIH
Input Leakage
Current I/O Pin
Vcc = 5.5V, pin high
(absolute value)
3
µA
IIL2
,
, DO
IIL3
CONFIG
IIH2
Typical
Max
Units
-0.5
0.3 * Vcc
V
0.6 * Vcc
Vcc + 0.5
V
0.9 * Vcc
Vcc + 0.5
V
0.7
0.5
V
4.0
2.0
V
(Vcc – VI) / 10 **
mA
(Vcc – VI) / 47 **
mA
(Vcc – VI) / 10 **
mA
* Reset pulse must last at least 250 nanoseconds
** VI = the input voltage on the pin
1.5. Mechanical Drawings
Figure 1.4. Mechanical Drawings ‐ XStream Module w/ RPSMA Connector
Figure 1.5. Mechanical Drawings ‐ XStream Module w/ MMCX Connector
(Measurements not shown are identical to those shown in the RPSMA diagrams above.)
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
2. RF Module Operation
2.1. Serial Communications
The XStream OEM RF Module interfaces to a host device through a CMOS-level asynchronous
serial port. Through its serial port, the module can communicate with any UART voltage
compatible device or through a level translator to any RS-232/485/422 device.
2.1.1. UART-Interfaced Data Flow
Devices that have a UART interface can connect directly through the pins of the XStream Module
as is shown in the figure below.
Figure 2.1. System Data Flow Diagram in a UART‐interfaced environment
(Low‐asserted signals distinguished with horizontal line over signal name.)
Serial Data
Data enters the XStream Module through the DI pin (pin 4) as an asynchronous serial signal. The
signal should idle high when no data is being transmitted.
The UART performs tasks, such as timing and parity checking, that are needed for data
communications. Serial communication consists of two UARTs configured with compatible
parameters (baud rate, parity, start bits, stop bits, data bits) to have successful communication.
Each data packet consists of a start bit (low), 8 data bits (least significant bit first) and a stop bit
(high). The following figure illustrates the serial bit pattern of data passing through the module.
Figure 2.2. UART data packet 0x1F (decimal number “31”) as transmitted through the XStream Module
Example Data Format is 8‐N‐1 (bits – parity ‐ # of stop bits)
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
2.1.2. Flow Control
Figure 2.3. Internal Data Flow Diagram (The five most commonly‐used pin signals shown.)
DI (Data In) Buffer and Flow Control
When serial data enters the XStream Module through the DI Pin, then the data is stored in the DI
Buffer until it can be transmitted.
When the RO parameter threshold is satisfied (refer to Transmit Mode (p11) and Command
Descriptions (p20) sections for more information), the module attempts to initialize an RF
connection. If the module is already receiving RF data, the serial data is stored in the module’s DI
Buffer. If the DI buffer becomes full, hardware or software flow control must be implemented in
order to prevent overflow (loss of data between the host and XStream OEM RF Module).
How to eliminate the need for flow control:
1.
Send messages that are smaller than the DI buffer size. The size of the DI buffer varies
according to the packet size and parity setting used.
2.
Interface at a lower baud rate (BD parameter) than the fixed RF data rate.
Two cases in which the DI Buffer may become full and possibly overflow:
1.
If the serial interface data rate is set higher than the RF data rate of the module, the module
will receive data from the host faster than it can transmit the data over-the-air.
2.
If the module is receiving a continuous stream of RF data or if the module is monitoring data
on a network, any serial data that arrives on the DI pin (Pin 4) is placed in the DI Buffer. The
data in the DI buffer will be transmitted over-the-air when the module no longer detects RF
data in the network.
Hardware Flow Control
(
). When the DI buffer is 17 bytes away from being full; by
default, the module de-asserts (high)
to signal to the host device to stop sending data (refer
to FT (Flow Control Threshold) and CS (DO2 Configuration) Commands).
is re-asserted after
the DI Buffer has 34 bytes of memory available.
Software Flow Control (XON). XON/XOFF software flow control can be enabled using the FL
(Software Flow Control) Command. This option only works with ASCII data.
DO (Data Out) Buffer and Flow Control
When RF data is received, the data enters the DO buffer and is then sent out the serial port to a
host device. Once the DO Buffer reaches capacity, any additional incoming RF data is lost.
Two cases in which the DO Buffer may become full and possibly overflow:
1.
If the RF data rate is set higher than the interface data rate of the module, the module will
receive data from the transmitting module faster than it can send the data to the host.
2.
If the host does not allow the module to transmit data out from the DO buffer because of
being held off by hardware or software flow control.
Hardware Flow Control
(
). If
is enabled for flow control (RT Parameter = 2), data
(pin 5) is de-asserted.
will not be sent out the DO Buffer as long as
Software Flow Control (XOFF). XON/XOFF software flow control can be enabled using the FL
(Software Flow Control) Command. This option only works with ASCII data.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
2.2. Modes of Operation
XStream OEM RF Modules operate in five modes.
Figure 2.4. XStream Modes of Operation
The module can only be in one mode at a time.
2.2.1. Idle Mode
When not receiving or transmitting data, the module is in Idle Mode. The module uses the same
amount of power in Idle Mode as it does in Receive Mode.
The module shifts into the other modes of operation under the following conditions:
• Serial data is received in the DI Buffer (Transmit Mode)
• Valid RF data is received through the antenna (Receive Mode)
• Command Mode Sequence is issued (Command Mode)
• Sleep Mode condition is met (Sleep Mode)
After responding to any of the preceding conditions, the module automatically transitions back
into Idle Mode.
2.2.2. Transmit Mode
When the first byte of serial data is received from the UART in the DI buffer, the module attempts
to shift to Transmit Mode and initiate an RF connection with other modules.
Figure 2.5. Transmission of Data -7
Once in Transmit Mode, the
module initializes a
communications channel. Channel
initialization is the process of
sending an RF initializer that
synchronizes receiving modules
with the transmitting module.
When streaming multiple RF
packets, the RF Initializer is only
sent in front of the first packet.
During channel initialization,
incoming serial data accumulates
in the DI buffer.
After the channel is initialized, data
in the DI buffer is grouped into packets (up to 64 bytes in each packet) and is transmitted. The
module continues to transmit data packets until the DI buffer is empty. Once transmission is
finished, the module returns to Idle Mode. This progression is shown in Figure 2.5.
As the transmitting module nears the end of the transmission, it inspects the DI buffer to see if
more data exists to be transmitted. This could be the case if more bytes arrived from the host
after the transmission began. If more data is pending, the transmitting module assembles a
subsequent packet for transmission.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
RF Packet
Figure 2.6. RF Packet Components
* When streaming multiple RF packets, the RF Initializer is only sent in front of the first packet.
RF Initializer
An RF initializer is sent each time a new connection sequence begins. The RF initializer contains
channel information that notifies receiving modules of information such as the hopping pattern
used by the transmitting module. The first transmission always sends an RF initializer.
An RF initializer can be of various lengths depending on the amount of time determined to be
required to prepare a receiving module. For example, a wake-up initializer is a type of RF
initializer used to wake remote modules from Sleep Mode (Refer to the FH, LH, HT and SM
Commands for more information). The length of the wake-up initializer should be longer than the
length of time remote modules are in cyclic sleep.
Header
The header contains network addressing information that filters incoming RF data. The receiving
module checks for a matching VID, Hopping Channel and Destination Address. Data that does not
pass through all three network filter layers is discarded.
Figure 2.7. Addressing Layers contained in the Header
CRC (Cyclic Redundancy Check)
To verify data integrity and provide built-in error checking, a 16-bit CRC (Cyclic Redundancy
Check) is computed for the transmitted data and attached to the end of each RF packet. On the
receiving end, the receiving module computes the CRC on all incoming RF data. Received data
that has an invalid CRC is discarded (See Receive Mode section, next page).
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
2.2.3. Receive Mode
If a module detects RF data while operating in Idle Mode, the module transitions into Receive
Mode to start receiving RF packets.
Figure 2.8. Reception of RF Data -7
After a packet is received, the module
checks the CRC (cyclic redundancy check)
to ensure that the data was transmitted
without error. If the CRC data bits on the
incoming packet are invalid, the packet is
discarded. If the CRC is valid, the packet
proceeds to the DO Buffer.
The module returns to Idle Mode after
valid RF data is no longer detected or
after an error is detected in the received
RF data. If serial data is stored in the DI
buffer while the module is in Receive
Mode, the serial data will be transmitted
after the module is finished receiving data
and returns to Idle Mode.
2.2.4. Sleep Mode
Sleep Modes enable the XStream Module to operate at minimal power consumption when not in
use. Three Sleep Mode options are available:
• Pin Sleep (Host Controlled)
• Serial Port Sleep (Wake on serial port activity)
• Cyclic Sleep (Wake on RF activity)
For the module to transition into Sleep Mode, the module must have a non-zero SM (Sleep Mode)
Parameter and one of the following must occur:
1.
The module is idle (no data transmission or reception) for a user-defined period of time
(Refer to the ST (Time before Sleep) Command).
2.
SLEEP (pin 2) is asserted (only for Pin Sleep option).
In Sleep Mode, the module will not transmit or receive data until the module first transitions to
Idle Mode. All Sleep Modes are enabled and disabled using SM Command. Transitions into and
out of Sleep Modes are triggered by various events as shown in the table below.
Table 2.1. Summary of Sleep Mode Configurations
Sleep Mode
Setting
Pin Sleep
(SM = 1)
Serial Port Sleep
(SM = 2)
Cyclic Sleep
(SM = 3-8)
Transition into
Sleep Mode
Microcontroller can shut down and wake
modules by asserting (high) SLEEP (pin 2).
Note: The module will complete a
transmission or reception before activating
Pin Sleep.
Automatic transition to Sleep Mode occurs
after a user-defined period of inactivity (no
transmitting or receiving of data). The
period of activity is defined using the ST
(Time before Sleep) Command.
Automatic transition to Sleep Mode occurs
in cycles as defined by the SM (Sleep
Mode) Command.
Transition out of
Sleep Mode
Related
Commands
Typical Power
Consumption
De-assert (low)
SLEEP (pin 2).
SM
26 µA
When serial byte is
received on the DI pin
(pin 4).
SM, ST
1 mA
SM, ST, HT,
LH, PW
76 µA
when sleeping
After the cyclic sleep
time interval elapses.
Note: Module can be
Note: The cyclic sleep time interval must be forced into Idle Mode
shorter than the “Wake-up Initializer Timer” if PW (Pin Wake-up)
(set by LH Command).
Command is issued.
For more information about Sleep Modes, refer to the individual commands listed in “Related Commands”
column of the table. The SM Command is central to all Sleep Mode configurations.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Pin Sleep (SM = 1) – Host Controlled
Pin Sleep requires the least amount of power. In order to achieve this state, SLEEP pin must be
asserted (high). The module remains in Pin Sleep until the SLEEP pin is de-asserted.
After enabling Pin Sleep, the SLEEP pin controls whether the XStream Module is active or in Sleep
Mode. When SLEEP is de-asserted (low), the module is fully operational. When SLEEP is asserted
(high), the module transitions to Sleep Mode and remains in its lowest power-consuming state
until the SLEEP pin is de-asserted. SLEEP is only active if the module is setup to operate in this
mode; otherwise the pin is ignored.
Once in Pin Sleep Mode,
is de-asserted (high), indicating that data should not be sent to the
module. The PWR pin is also de-asserted (low) when the module is in Pin Sleep Mode.
Note: The module will complete a transmission or reception before activating Pin Sleep.
Serial Port Sleep (SM = 2) - Wake on serial port activity
Serial Port Sleep is a Sleep Mode in which the XStream Module runs in a low power state until
serial data is detected on the DI pin.
When Serial Port Sleep is enabled, the module goes into Sleep Mode after a user-defined period
of inactivity (no transmitting or receiving of data). This period of time is determined by ST (Time
before Sleep) Command. Once a character is received through the DI pin, the module returns to
Idle Mode and is fully operational.
Cyclic Sleep (SM = 3-8) - Wake on RF activity
Cyclic Sleep is the Sleep Mode in which the XStream Module enters into a low-power state and
awakens periodically to determine if any transmissions are being sent.
When Cyclic Sleep settings are enabled, the XStream Module goes into Sleep Mode after a userdefined period of inactivity (no transmission or reception on the RF channel). The user-defined
period is determined by ST (Time before Sleep) Command.
While the module is in Cyclic Sleep Mode,
is de-asserted (high) to indicate that data should
not be sent to the module during this time. When the module awakens to listen for data,
is
asserted and any data received on the DI Pin is transmitted. The PWR pin is also de-asserted
(low) when the module is in Cyclic Sleep Mode.
The module remains in Sleep Mode for a user-defined period of time ranging from 0.5 seconds to
16 seconds (SM Parameters 3 through 8). After this interval of time, the module returns to Idle
Mode and listens for a valid data packet for 100 ms. If the module does not detect valid data (on
any frequency), the module returns to Sleep Mode. If valid data is detected, the module
transitions into Receive Mode and receives incoming RF packets. The module then returns to
Sleep Mode after a Period of inactivity that is determined by ST “Time before Sleep” Command.
The module can also be configured to wake from cyclic sleep when SLEEP (pin 2) is de-asserted
(low). To configure a module to operate in this manner, PW (Pin Wake-up) Command must be
issued. Once SLEEP is de-asserted, the module is forced into Idle Mode and can begin
transmitting or receiving data. It remains active until no data is detected for the period of time
specified by the ST Command, at which point it resumes its low-power cyclic state.
Note: The cyclic interval time defined by SM (Sleep Mode) Command must be shorter than the interval
time defined by LH (Wake-up Initializer Timer).
For example: If SM=4 (Cyclic 1.0 second sleep), the LH Parameter should equal 0x0B (“1.1” seconds).
With these parameters set, there is no risk of the receiving module being asleep for the duration of
wake-up initializer transmission. “Cyclic Scanning” explains in further detail the relationship between
“Cyclic Sleep” and “Wake-up Initializer Timer”
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Cyclic Scanning. Each RF transmission consists of an RF Initializer and payload. The wake-up
initializer contains initialization information and all receiving modules must wake during the
wake-up initializer portion of data transmission in order to be synchronized with the transmitting
module and receive the data.
Figure 2.9. Correct Configuration (LH > SM)
Length of the wake‐up initializer exceeds the time interval of Cyclic Sleep. The receiver is guaranteed to detect
the wake‐up initializer and receive the accompanying payload data.
Figure 2.10. Incorrect Configuration (LH < SM)
Length of wake‐up initializer is shorter than the time interval of Cyclic Sleep. This configuration is vulnerable
to the receiver waking and missing the wake‐up initializer (and therefore also the accompanying payload data).
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
2.2.5. Command Mode
To modify or read module parameters, the module must first enter into Command Mode, the
state in which incoming characters are interpreted as commands. Two command types are
available for programming the module:
• AT Commands
• Binary Commands
For modified parameter values to persist in the module registry, changes must be saved to nonvolatile memory using WR (Write) Command. Otherwise, parameters are restored to previously
saved values after the module is powered off and then on again.
AT Commands
To Enter AT Command Mode:
1.
Send the 3-character command sequence “+++” and observe guard times before and after
the command characters. (Refer to the “Default AT Command Mode Sequence” below.) The
“Terminal” tab (or other serial communications software) of the XCTU Software can be used
to enter the sequence.
(OR)
2.
Assert (low) the
pin and either turn the power going to the module off and back on.
(If using a Digi XIB-R Interface Board, the same result can be achieved by keeping the
configuration switch pressed while turning off, then on again the power supplying the
module assembly (module assembly = module mounted to an interface board))
Default AT Command Mode Sequence (for transition to Command Mode):
• No characters sent for one second (refer to BT (Guard Time Before) Command)
• Input three plus characters (“+++”) within one second (refer to CC (Command Sequence
Character) Command.)
• No characters sent for one second (refer to AT (Guard Time After) Command.)
To Send AT Commands:
Send AT commands and parameters using the syntax shown below.
Figure 2.11. Syntax for sending AT Commands
NOTE: To read a parameter value stored in a register, leave the parameter field blank.
The preceding example would change the module Destination Address to “0x1F”. To store the
new value to non-volatile (long term) memory, subsequently send the Write (ATWR) Command.
System Response. When a command is sent to the module, the module will parse and execute
the command. Upon successful execution of a command, the module returns an “OK” message. If
execution of a command results in an error, the module returns an “ERROR” message.
To Exit AT Command Mode:
1.
Send ATCN (Exit Command Mode) Command.
(OR)
2.
If no valid AT Commands are received within the time specified by CT (Command Mode
Timeout) Command, the Module automatically returns to Idle Mode.
For an example that illustrates programming the module using AT Commands, refer to the “RF
Module Configuration” chapter (p18).
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Binary Commands
Sending and receiving parameter values using binary commands is the fastest way to change
operating parameters of the module. Binary commands are used most often to sample signal
strength (RS parameter) and/or error counts; or to change module addresses and channels for
polling systems when a quick response is necessary. Since the sending and receiving of
parameter values takes place through the same data path as “live” data (received RF payload),
interference between the two types of data can be a concern.
Common questions about using binary commands:
• What are the implications of asserting CMD while live data is being sent or received?
• After sending serial data, is there a minimum time delay before CMD can be asserted?
• Is a time delay required after CMD is de-asserted before payload data can be sent?
• How to discern between live data and data received in response to a command?
CMD (pin 5) must be asserted in order to send binary commands to the module. The CMD pin can
be asserted to recognize binary commands anytime during the transmission or reception of data.
The status of the CMD signal is only checked at the end of the stop bit as the byte is shifted into
the serial port. The application does not allow control over when data is received, except by
waiting for dead time between bursts of communication.
If the command is sent in the middle of a stream of payload data to be transmitted, the
command will essentially be executed in the order it is received. If the radio is continuously
receiving data, the radio will wait for a break in the received data before executing the command.
The
signal will frame the response coming from the binary command request (Figure 2.12).
A minimum time delay of 100 µs (after the stop bit of the command byte has been sent) must be
observed before pin 5 can be de-asserted. The command executes after all parameters
associated with the command have been sent. If all parameters are not received within 0.5
seconds, the module aborts the command and returns to Idle Mode.
Note: When parameters are sent, they are two bytes long with the least significant byte sent first.
Binary commands that return one parameter byte must be written with two parameter bytes.
Refer to p18 for a binary programming example (DT command example returns two bytes)
Commands can be queried for their current value by sending the command logically ORed (bitwise) with the value 0x80 (hexadecimal) with CMD asserted. When the binary value is sent (with
no parameters), the current value of the command parameter is sent back through the DO pin.
Figure 2.12. Binary Command Write then Read
Signal #4 is CMD (pin 5)
Signal #1 is the DIN (pin 4) signal
to the radio
Signal #2 is the DOUT (pin 3) signal
from the radio
(pin 1)
Signal #3 is
In this graph, a value was written to a register and
then read out to verify it. While not in the middle
of other received data, note that the
signal
outlines the data response out of the module.
IMPORTANT:
For the XStream Module to recognize a binary command, the RT (DI2
Configuration) parameter must be set to one. If binary programming is not
enabled (RT ≠ 1), the module will not recognize that the CMD pin (Pin 5) is
asserted and therefore will not recognize the data as binary commands.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
3. RF Module Configuration
3.1. Hands-on Programming Examples
For information about entering and exiting AT and Binary Command Modes, refer to the
Command Mode section (p16).
3.1.1. AT Command Example
To Send AT Commands (Using the Terminal tab of Digi’s XCTU Software)
Example: Both of the following examples change the module’s destination address to 0x1A0D and
save the new address to non-volatile memory.
Digi provides X‐CTU
Software for programming
the module using standard
AT Commands.
To install, double‐click the
“setup_X‐CTU.exe” file
(located on the Digi
Support site at
www.digi.com/support),
then follow the prompts of
the installation screens.
Method 1 (One line per command)
Send AT Command
+++
ATDT <Enter>
ATDT1A0D <Enter>
ATWR <Enter>
ATCN <Enter>
System Response
OK <CR> (Enter into Command Mode)
0 <CR> (Read current destination address)
OK <CR> (Change destination address)
OK <CR> (Write to non-volatile memory)
OK <CR> (Exit Command Mode)
Method 2 (Multiple commands on one line)
Send AT Command
+++
ATDT <Enter>
ATDT1A0D,WR,CN <Enter>
System Response
OK <CR> (Enter into Command Mode)
0 <CR> (Read current destination address)
OK <CR> (Execute commands)
Note: In order to use a host PC and the XCTU Software Terminal tab to send data to the module, the
PC com port settings must match the following module parameter values: baud, parity and stop bits.
Use the “PC Settings” tab to configure PC com port settings to match module parameter values.
3.1.2. Binary Command Example
To Send Binary Commands:
Example: Use binary commands to change the XStream Module’s destination address to 0x1A0D
and save the new address to non-volatile memory.
1.
RT Command must be set to “1” in AT Command Mode to enable binary programming.
2.
Assert CMD (Pin 5 is driven high).
3.
Send Bytes (parameter bytes must be 2 bytes long):
00
(Send DT (Destination Address) Command)
0D
(Least significant byte of parameter bytes)
1A
(Most significant byte of parameter bytes)
08
(Send WR (Write) Command)
4.
De-assert CMD (Pin 5 is driven low)
Note:
(Exit Binary Command Mode)
(pin 1) is de-asserted high when commands are being executed. Hardware flow control
must be disabled as
© 2014 Digi International Inc.
(Enter Binary Command Mode)
will hold off parameter bytes.
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XStream™ OEM RF Module – Product Manual v4.2B5
3.2. Command Reference Table
Table 3.1. XStream Commands
(The XStream Module expects numerical values in hexadecimal. “d” denotes decimal equivalent.)
AT
Command
Binary
Command
AT Command Name
Range
Command Category
# Bytes
Returned
Factory
Default
AT
0x05 (5d)
Guard Time After
Command Mode Options
2
0x0A (10d)
BD v4.2B*
0x15 (21d)
Interface Data Rate
0x02 – 0xFFFF (x 100 msec)
Standard baud rates:
0–6
Non-standard baud rates:
0x7D – 0xFFFF
Serial Interfacing
2
Set to equal
factory-set RF
data rate
BT
0x04 (4d)
Guard Time Before
2 – 0xFFFF (x 100 msec)
Command Mode Options
2
0x0A (10d)
CC
0x13 (19d)
Command Sequence Character
0x20 – 0x7F
Command Mode Options
1
0x2B (“+”)
CD v 4.2B*
0x28 (40d)
DO3 Configuration
0-4
Serial Interfacing
1
0
CN
0x09 (9d)
Exit AT Command Mode
-
Command Mode Options
-
-
CS v 4.27D*
0x1F (31d)
DO2 Configuration
0–4
Serial Interfacing
1
0
CT
0x06 (6d)
Command Mode Timeout
0x02 – 0xFFFF (x 100 msec)
Command Mode Options
2
0xC8 (200d)
DT
0x00 (0d)
Destination Address
0 – 0xFFFF
Networking
2
0
E0
0x0A (10d)
Echo Off
-
Command Mode Options
-
-
E1
0x0B (11d)
Echo On
-
Command Mode Options
-
-
ER
0x0F (15d)
Receive Error Count
0 – 0xFFFF
Diagnostics
2
0
FH
0x0D (13d)
Force Wake-up Initializer
-
Sleep (Low Power)
-
-
FL
0x07 (7d)
Software Flow Control
0–1
Serial Interfacing
1
0
FT v 4.27B*
0x24 (36d)
Flow Control Threshold
0 – (DI buffer – 0x11) (bytes)
Serial Interfacing
2
varies
GD
0x10 (16d)
Receive Good Count
0 – 0xFFFF
Diagnostics
2
0
HP
0x11 (17d)
Hopping Channel
0–6
Networking
1
0
HT
0x03 (3d)
Time before Wake-up Initializer
0 – 0xFFFF (x 100 msec)
Sleep (Low Power)
2
0xFFFF
Networking
2
-
ID v 4.2B*
0x27 (39d)
Module VID
User settable: 0x10 - 0x7FFF
Read-only: 0x8000 – 0xFFFF
LH
0x0C (12d)
Wake-up Initializer Timer
0 – 0xFF (x 100 msec)
Sleep (Low Power)
1
1
MK
0x12 (18d)
Address Mask
0 – 0xFFFF
Networking
2
0xFFFF
NB v 4.27B*
0x23 (35d)
Parity
0–4
Serial Interfacing
1
0
PC v 4.22*
0x1E (30d)
Power-up Mode
0–1
Command Mode Options
1
0
PW v 4.22*
0x1D (29d)
Pin Wake-up
0–1
Sleep (Low Power)
1
0
RE
0x0E (14d)
Restore Defaults
-
(Special)
-
-
RN v 4.22*
0x19 (25d)
Delay Slots
0 – 0xFF (slots)
Networking
1
0
RO v 4.2AA*
0x21 (33d)
Packetization Timeout
0 – 0xFFFF (x 200 µsec)
Serial Interfacing
2
0
RP v 4.2AA*
0x22 (34d)
RSSI PWM Timer
0 - 0x7F (x 100 msec)
Diagnostics
1
0
RR v 4.22*
0x18 (24d)
Retries
0 – 0xFF
Networking
1
0
RS v 4.22*
0x1C (28d)
RSSI
0x06 – 0x36 (read-only)
Diagnostics
1
-
RT
0x16 (22d)
DI2 Configuration
0-2
Serial Interfacing
1
0
SB v4.2B*
0x36 (54d)
Stop Bits
0-1
Serial Interfacing
1
0
SH v 4.27C*
0x25 (37d)
Serial Number High
0 – 0xFFFF (read-only)
Diagnostics
2
-
SL v 4.27C*
0x26 (38d)
Serial Number Low
0 – 0xFFFF (read-only)
Diagnostics
2
-
SM
0x01 (1d)
Sleep Mode
0–8
Sleep (Low Power)
1
0
ST
0x02 (2d)
Time before Sleep
0x10 – 0xFFFF (x 100 msec)
Sleep (Low Power)
2
0x64 (100d)
SY
0x17 (23d)
Time before Initialization
0 – 0xFF (x 100 msec)
Networking
1
0 (disabled)
TR v 4.22*
0x1B (27d)
Transmit Error Count
0 – 0xFFFF
Diagnostics
2
0
TT v 4.22*
0x1A (26d)
Streaming Limit
0 – 0xFFFF (0 = disabled)
Networking
2
0xFFFF
VR
0x14 (20d)
Firmware Version
0 x 0xFFFF (read-only)
Diagnostics
2
-
WR
0x08 (8d)
Write
-
(Special)
-
-
* Firmware version in which command and parameter options were first supported.
NOTE: AT Commands issued without a parameter value will return the currently stored parameter.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
3.3. Command Descriptions
Commands in this section are listed alphabetically. Command categories are designated between
the “< >” symbols that follow each command title. XStream Modules expect numerical values in
hexadecimal and those values are designated by a “0x” prefix.
Modules operating within the same network should contain the same firmware version.
AT (Guard Time After) Command
<Command Mode Options> AT Command is used
to set the time-of-silence that follows the
command sequence character (CC Command). By
default, AT Command Mode will activate after one
second of silence.
Refer to the AT Commands section (p16) to view
the default AT Command Mode Sequence.
AT Command: ATAT
Binary Command: 0x05 (5 decimal)
Parameter Range: 0x02 – 0xFFFF
(x 100 milliseconds)
Number of bytes returned: 2
Default Parameter Value: 0x0A (10 decimal)
Related Commands: BT (Guard Time Before),
CC (Command Sequence Character)
BD (Interface Data Rate) Command
<Serial Interfacing> BD Command allows the
user to adjust the UART interface data rate and
thus modify the rate at which serial data is sent
to the module. The new baud rate does not take
effect until the CN (Exit AT Command Mode)
Command is issued. The RF data rate is not
affected by the BD Command.
Although most applications will only require one
of the seven standard baud rates, non-standard
baud rates are also supported.
Note: If the serial data rate is set to exceed the
fixed RF data rate of the XStream module,
flow control may need to be implemented as
described in the Pin Signals and Flow Control
sections of this manual.
AT Command: ATBD
Binary Command: 0x15 (21 decimal)
Parameter Range (Standard baud rates): 0 – 6
(Non-standard baud rates): 0x7D – 0xFFFF
(125d – 65535d)
Parameter
BAUD (bps)
Value
Configuration
0
1200
1
2400
2
4800
3
9600
4
19200
5
38400
6
57600
Number of bytes returned: 2
Default Parameter Value: Set to equal
module’s factory-set RF data rate.
Minimum firmware version required: 4.2B
(non-standard baud rates not previously
supported)
Non-standard Interface Data Rates: When
parameter values outside the range of standard
baud rates are sent, the closest interface data
rate represented by the number is stored in the BD register. For example, a rate of 19200 bps
can be set by sending the following command line "ATBD4B00". NOTE: When using Digi’s XCTU
Software, non-standard interface data rates can only be set and read using the XCTU “Terminal”
tab. Non-standard rates are not accessible through the “Modem Configuration” tab.
When the BD command is sent with a non-standard interface data rate, the UART will adjust to
accommodate the requested interface rate. In most cases, the clock resolution will cause the
stored BD parameter to vary from the parameter that was sent (refer to the table below).
Reading the BD command (send "ATBD" command without an associated parameter value) will
return the value that was actually stored to the BD register.
Table 3.2.
Parameter Sent vs. Parameter Stored
BD Parameter Sent (HEX)
0
4
7
12C
1C200
© 2014 Digi International Inc.
Interface Data Rate (bps)
1200
19,200
115,200
300
115,200
BD Parameter Stored (HEX)
0
4
7
12B
1B207
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XStream™ OEM RF Module – Product Manual v4.2B5
BT (Guard Time Before) Command
<Command Mode Options> BT Command is used
to set the DI pin silence time that must precede
the command sequence character (CC Command)
of the AT Command Mode Sequence.
Binary Command: 0x04 (4 decimal)
Refer to the AT Commands section (p16) to view
Default Parameter Value: 0x0A (10 decimal)
the default AT Command Mode Sequence.
Number of bytes returned: 2
AT Command: ATBT
Parameter Range: 2 – 0xFFFF
(x 100 milliseconds)
Related Commands: AT (Guard Time After),
CC (Command Sequence Character)
CC (Command Sequence Character) Command
<Command Mode Options> CC Command is used
to set the ASCII character to be used between
Guard Times of the AT Command Mode Sequence
(BT+ CC + AT). The AT Command Mode
Sequence activates AT Command Mode (from
Idle Mode).
AT Command: ATCC
Refer to the AT Commands section (p16) to view
the default AT Command Mode Sequence.
Related Commands: AT (Guard Time After), BT
(Guard Time Before)
Binary Command: 0x13 (19 decimal)
Parameter Range: 0x20 – 0x7F
Default Parameter Value: 0x2B (ASCII “+” sign)
Number of bytes returned: 1
CD (DO3 Configuration) Command
<Command Mode Options> CD Command is
used to define the behavior of the DO3/RX LED
line.
AT Command: ATCD
Binary Command: 0x28 (40 decimal)
Parameter Range: 0 – 3
Parameter
Value
0
1
2
3
Configuration
RX LED
Default high
Default low
(reserved)
Assert only when packet
4
addressed to module is sent
Default Parameter Value: 0
Number of bytes returned: 1
Minimum Firmware Version Required: 4.2B
CN (Exit AT Command Mode) Command
<Command Mode Options> CN Command is used
to explicitly exit AT Command Mode.
AT Command: ATCN
Binary Command: 0x09 (9 decimal)
CS (DO2 Configuration) Command
<Serial Interfacing> CS Command is used to
select the behavior of the DO2 pin signal. This
output can provide RS-232 flow control, control
the TX enable signal (for RS-485 or RS-422
operations), or set the default level for the I/O
line passing function.
By default, DO2 provides RS-232
Send) flow control.
(Clear-to-
AT Command: ATCS
Binary Command: 0x1F (31 decimal)
Parameter Range: 0 – 4
Parameter
Value
0
1
Configuration
RS-232
flow control
RS-485 TX enable low
2
high
3
RS-485 TX enable high
4
low
Default Parameter Value: 0
Number of bytes returned: 1
Minimum Firmware Version Required: 4.27D
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
CT (Command Mode Timeout) Command
<Command Mode Options> CT Command sets
the amount of time before AT Command Mode
terminates automatically. After a CT time of
inactivity, the module exits AT Command Mode
and returns to Idle Mode. AT Command Mode can
also be exited manually using CN (Exit AT
Command Mode) Command.
AT Command: ATCT
Binary Command: 0x06 (6 decimal)
Parameter Range: 0x02 – 0xFFFF
(x 100 milliseconds)
Default Parameter Value: 0xC8 (200 decimal,
20 seconds)
Number of bytes returned: 2
DT (Destination Address) Command
<Networking> DT Command is used to set the
AT Command: ATDT
networking address of an XStream Module.
Binary Command: 0x00
XStream Modules uses three network layers –
Parameter Range: 0 – 0xFFFF
Vendor Identification Number (ATID), Channels
Default Parameter Value: 0
(ATHP), and Destination Addresses (ATDT). DT
Number of bytes returned: 2
Command assigns an address to a module that
enables it to communicate only with other
Related Commands: HP (Hopping Channel), ID
(Module VID), MK (Address Mask)
modules having the same addresses. All modules
that share the same Destination Address can
communicate freely with each other. Modules in the same network with a different Destination
Address (than that of the transmitter) will listen to all transmissions to stay synchronized, but will
not send any of the data out their serial ports.
E0 (Echo Off) Command
<Command Mode Options> E0 Command turns
off character echo in AT Command Mode. By
default, echo is off.
AT Command: ATE0
Binary Command: 0x0A (10 decimal)
E1 (Echo On) Command
<Command Mode Options> E1 Command turns
on the echo in AT Command Mode. Each typed
character will be echoed back to the terminal
when ATE1 is active. E0 is the default.
AT Command: ATE1
Binary Command: 0x0B (11 decimal)
ER (Receive Error Count) Command
<Diagnostics> Set/Read the receive-error. The
error-count records the number of packets
partially received then aborted on a reception
error. This value returns to 0 after a reset and is
not non-volatile (Value does not persist in the
module’s memory after a power-up sequence).
Once the “Receive Error Count” reaches its
maximum value (up to 0xFFFF), it remains at its
AT Command: ATER
Binary Command: 0x0F (15 decimal)
Parameter Range: 0 – 0xFFFF
Default Parameter Value: 0
Number of bytes returned: 2
Related Commands: GD (Receive Good Count)
maximum count value until the maximum count value is explicitly changed or the module is
reset.
FH (Force Wake-up Initializer) Command
<Sleep (Low Power)> FH Command is used to
force a Wake-up Initializer to be sent on the next
transmit. WR (Write) Command does not need to
be issued with FH Command.
AT Command: ATFH
Binary Command: 0x0D (13 decimal)
Use only with cyclic sleep modes active on remote modules.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
FL (Software Flow Control) Command
<Serial Interfacing> FL Command is used to
configure software flow control. Hardware flow
control is implemented with the XStream Module
as the DO2 pin (
), which regulates when
serial data can be transferred to the module. FL
Command can be used to allow software flow
control to also be enabled. XON character used is
0x11 (17 decimal). XOFF character used is 0x13
(19 decimal).
AT Command: ATFL
Binary Command: 0x07 (7 decimal)
Parameter Range: 0 – 1
Parameter
Value
Configuration
Disable software
flow control
Enable software
1
flow control
Default Parameter Value: 0
Number of bytes returned: 1
0
FT (Flow Control Threshold) Command
<Serial Interfacing> Set/Read the flow control
threshold. When FT bytes have accumulated in
the DI buffer,
is de-asserted or the XOFF
software flow control character is transmitted.
AT Command: ATFT
Binary Command: 0x24 (36 decimal)
Parameter Range: 0 – (DI buffer size minus
0x11 bytes)
Default Parameter Value: DI Buffer size minus
0x11 (17 decimal)
Number of bytes returned: 2
Minimum Firmware Version Required: 4.27B
GD (Receive Good Count) Command
<Diagnostics> Set/Read the count of good
received RF packets. Parameter value is reset to
0 after every reset and is not non-volatile (Value
does not persist in the module’s memory after a
power-up sequence). Once the “Receive Good
Count” reaches its maximum value (up to
0xFFFF), it remains at its maximum count value
until the maximum count value is manually
changed or the module is reset.
AT Command: ATGD
Binary Command: 0x10 (16 decimal)
Parameter Range: 0 – 0xFFFF
Default Parameter Value: 0
Number of bytes returned: 2
Related Commands: ER (Receive Error Count)
HP (Hopping Channel) Command
<Networking> HP Command is used to set the
module’s hopping channel number. A channel is
one of three layers of addressing available to the
XStream module. In order for modules to
communicate with each other, the modules must
have the same channel number since each
network uses a different hopping sequence.
Different channels can be used to prevent
modules in one network from listening to
transmissions of another.
© 2014 Digi International Inc.
AT Command: ATHP
Binary Command: 0x11 (17 decimal)
Parameter Range: 0 – 6
Default Parameter Value: 0
Number of bytes returned: 1
Related Commands: DT (Destination Address),
ID (Module VID), MK (Address Mask)
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XStream™ OEM RF Module – Product Manual v4.2B5
HT (Time before Wake-up Initializer) Command
<Sleep (Low Power)> If any modules within
range are running in a “Cyclic Sleep” setting, a
wake-up initializer must be used by the
transmitting module for sleeping modules to
remain awake (refer to the LH (“Wake-up
Initializer Timer”) Command). When a receiving
module in Cyclic Sleep wakes, it must detect the
wake-up initializer in order to remain awake and
receive data. The value of HT Parameter tells the
transmitter, “After a period of inactivity (no
transmitting or receiving) lasting HT amount of
AT Command: ATHT
Binary Command: 0x03 (3 decimal)
Parameter Range: 0 – 0xFFFF
(x 100 milliseconds)
Default Parameter Value: 0xFFFF (means that
long wake-up initializer will not be sent)
Number of bytes returned: 2
Related Commands: LH (Wake-up Initializer
Timer), SM (Sleep Mode), ST (Time before
Sleep)
time, send a long wake-up initializer”. HT Parameter should be set to match the inactivity timeout
(specified by ST (Time before Sleep) Command) used by the receiver(s).
From the receiving module perspective, after HT time elapses and the inactivity timeout (ST
Command) is met, the receiver goes into cyclic sleep. In cyclic sleep, the receiver wakes once per
sleep interval to check for a wake-up initializer. When a wake-up initializer is detected, the
module will stay awake to receive data. The wake-up initializer must be longer than the cyclic
sleep interval to ensure that sleeping modules detect incoming data. When HT time elapses, the
transmitter then knows that it needs to send a long Wake-up Initializer for all receivers to be able
to remain awake and receive the next transmission. Matching HT to the time specified by ST on
the receiving module guarantees that all receivers will detect the next transmission.
ID (Modem VID) Command
<Networking> Set/Read the “Vendor
Identification Number”. Only modems with
matching IDs can communicate with each other.
Modules with non-matching VIDs will not receive
unintended data transmission.
AT Command: ATID
Binary Command: 0x27 (39 decimal)
Parameter Range (user-settable):
0x10 - 0x7FFFF
(Factory-set and read-only) :
0x8000 – 0xFFFF
Number of bytes returned: 2
Minimum Firmware Version Required: 4.2B
LH (Wake-up Initializer Timer) Command
<Sleep (Low Power)> LH Command adjusts the
duration of time for which the RF initializer is
sent. When receiving modules are put into Cyclic
Sleep Mode, they power-down after a period of
inactivity (specified by ST (Time before Sleep)
Command) and will periodically awaken and listen
for transmitted data. In order for the receiving
modules to remain awake, they must detect
~35ms of the wake-up initializer.
AT Command: ATLH
Binary Command: 0x0C (12 decimal)
Parameter Range: 0 – 0xFF
(x 100 milliseconds)
Default Parameter Value: 1
Number of bytes returned: 1
Related Commands: HT (Time before Wake-up
Initializer), SM (Sleep Mode), ST (Time before
Sleep)
LH Command must be used whenever a receiver
is operating in Cyclic Sleep Mode. This lengthens the Wake-up Initializer to a specific amount of
time (in tenths of a second). The Wake-up Initializer Time must be longer than the cyclic sleep
time that is determined by SM (Sleep Mode) Command. If the wake-up initializer time were less
than the Cyclic Sleep interval, the connection would be at risk of missing the wake-up initializer
transmission.
Refer to Figures 3.1 and 3.2 of the SM Command description to view diagrams of correct and
incorrect configurations. The images help visualize the importance that the value of LH be greater
than the value of SM.
© 2014 Digi International Inc.
24
XStream™ OEM RF Module – Product Manual v4.2B5
MK (Address Mask) Command
<Networking> MK Command is used to set/read
the Address Mask.
All data packets contain the Destination Address
of the transmitting module. When an RF data
packet is received, the transmitter’s Destination
Address is logically “ANDed” (bitwise) with the
Address Mask of the receiver. The resulting value
must match the Destination Address or the
Address Mask of the receiver for the packet to be
received and sent out the module’s DO serial
port. If the “ANDed” value does not match either
the Destination Address or the Address Mask of
AT Command: ATMK
Binary Command: 0x12 (18 decimal)
Parameter Range: 0 – 0xFFFF
Default Parameter Value: 0xFFFF
(Destination address (DT parameter) of the
transmitting module must exactly match the
destination address of the receiving module.)
Number of bytes returned: 2
Related Commands: DT (Destination Address),
HP (Hopping Channel), ID (Module VID), MY
(Source Address)
the receiver, the packet is discarded. (All “0” values are treated as “irrelevant” values and are
ignored.)
NB (Parity) Command
<Serial Interfacing> Select/Read parity settings
for UART communications.
AT Command: ATNB
Binary Command: 0x23 (35 decimal)
Parameter Range: 0 – 4
Parameter
Value
Configuration
8-bit (no parity or
7-bit (any parity)
8-bit even
8-bit odd
8-bit mark
8-bit space
0
1
2
3
4
Default Parameter Value: 0
Number of bytes returned: 1
Minimum Firmware Version Required: 4.27B
PC (Power-up to AT Mode) Command
<Command Mode Options> PC Command allows
the module to power-up directly into AT
Command Mode from reset or power-on. If PC
Command is enabled with SM Parameter set to 1,
DI3 (pin 2) can be used to enter the module into
AT Command Mode. When the DI3 pin is deasserted (low), the module will wake-up in AT
Command Mode. This behavior allows module
DTR emulation.
© 2014 Digi International Inc.
AT Command: ATPC
Binary Command: 0x1E (30 decimal)
Parameter Range: 0 – 1
Parameter
Value
0
1
Configuration
Power-up to Idle Mode
Power-up to
AT Command Mode
Default Parameter Value: 0
Number of bytes returned: 1
Minimum Firmware Version Required: 4.22
25
XStream™ OEM RF Module – Product Manual v4.2B5
PW (Pin Wake-up) Command
<Sleep (Low Power)> Under normal operation, a
module in Cyclic Sleep Mode cycles from an
active state to a low-power state at regular
intervals until data is ready to be received. If the
PW Parameter is set to 1, SLEEP (pin 2) can be
used to wake the module from Cyclic Sleep. If the
SLEEP pin is de-asserted (low), the module will
be fully operational and will not go into Cyclic
Sleep. Once SLEEP is asserted, the module will
remain active for the period of time specified by
ST (Time before Sleep) Command, and will return
to Cyclic Sleep Mode (if no data is ready to be
transmitted). PW Command is only valid if Cyclic
Sleep has been enabled.
AT Command: ATPW
Binary Command: 0x1D (29 decimal)
Parameter Range: 0 – 1
Parameter
Configuration
Value
0
Disabled
1
Enabled
Default Parameter Value: 0
Number of bytes returned: 1
Related Commands: SM (Sleep Mode), ST (Time
before Sleep)
Minimum Firmware Version Required: 4.22
RE (Restore Defaults) Command
<Diagnostics> RE Command restores all
AT Command: ATRE
configurable parameters to factory default
Binary Command: 0x0E (14 decimal)
settings. However, RE Command will not write
the default values to non-volatile (persistent) memory. Unless the WR (Write) Command is issued
after the RE command, the default settings will not be saved in the event of module reset or
power-down.
RN (Delay Slots) Command
<Networking> RN Command is only applicable if
retries have been enabled (RR (Retries)
Command), or if forced delays will be inserted
into a transmission (refer to TT (Streaming Limit)
Command). RN Command is used to adjust the
time delay that the transmitter inserts before
attempting to resend a packet. If the transmitter
fails to receive an acknowledgement after
sending a packet, it will insert a random number
of delay slots (ranging from 0 to (RN minus 1))
before attempting to resend the packet. Each
delay slot lasts for a period of 38ms.
AT Command: ATRN
Binary Command: 0x19 (25 decimal)
Parameter Range: 0 – 0xFF (slots)
Default Parameter Value: 0 (no delay slots
inserted)
Number of bytes returned: 1
Related Commands: RR (Retries), TT
(Streaming Limit)
Minimum Firmware Version Required: 4.22
If two modules attempted to transmit at the same time, the random time delay after packet
failure would allow one of the two modules to transmit the packet successfully, while the other
would wait until the channel opens up to begin transmission.
RO (Packetization Timeout) Command
<Serial Interfacing> RO Command is used to
specify/read the time of silence (no bytes
received) after which transmission begins. After a
serial byte is received and if no other byte is
received before the RO timeout, the transmission
will start.
AT Command: ATRO
Binary Command: 0x21 (33 decimal)
Parameter Range: 0 – 0xFFFF (x 200 µs)
Default Parameter Value: 0
Number of bytes returned: 2
Minimum Firmware Version Required: 4.2AA
© 2014 Digi International Inc.
26
XStream™ OEM RF Module – Product Manual v4.2B5
RP (RSSI PWM Timer) Command
<Diagnostics> RP Command is used to enable a
PWM (“Pulse Width Modulation”) output on the
Config pin which is calibrated to show the level
the received RF signal is above the sensitivity
level of the module. The PWM pulses vary from
zero to 95 percent. Zero percent means the
received RF signal is at or below the published
sensitivity level of the module. The following
table shows levels above sensitivity and PWM
values.
AT Command: ATRP
Binary Command: 0x22 (34 decimal)
Parameter Range: 0 - 0x7F
(x 100 milliseconds)
Default Parameter Value: 0 (disabled)
Number of bytes returned: 1
Minimum Firmware Version Required: 4.2AA
The total period of the PWM output is 8.32 ms. There are 40 steps in the PWM output and
therefore the minimum step size is 0.208 ms.
Table 3.3.
PWM Chart
10
20
PWM percentage
(high period / total period)
47.5 %
62.5 %
30
77.5 %
dBm above Sensitivity
A non-zero value defines the time that the PWM output will be active with the RSSI value of the
last received RF packet. After the set time when no RF packets are received, the PWM output will
be set low (0 percent PWM) until another RF packet is received. The PWM output will also be set
low at power-up. A parameter value of 0xFF permanently enables the PWM output and it will
always reflect the value of the last received RF packet.
PWM output shares the Config input pin. When the module is powered, the Config pin will be an
input. During the power-up sequence, the Config pin will be read to determine whether the
module is going into AT Command Mode. After this, if RP parameter is a non-zero value, the
Config pin will be configured as an output and set low until the first RF packet is received. With a
non-zero RP parameter, the Config pin will be an input for RP ms after power up.
RR (Retries) Command
Networking> RR Command specifies the number
AT Command: ATRR
of retries that can be sent for a given RF packet.
Binary Command: 0x18 (24 decimal)
Once RR Command is enabled (set to a non-zero
Parameter Range: 0 – 0xFF
value), RF packet acknowledgements and retries
Default Parameter Value: 0 (disabled)
are enabled. After transmitting a packet, the
Number of bytes returned: 1
transmitter will wait to receive an
acknowledgement from a receiver. If the
Minimum Firmware Version Required: 4.22
acknowledgement is not received in the period of
time specified by the RN (Delay Slots) Command, the transmitter will transmit the original packet
again. The packet will be transmitted repeatedly until an acknowledgement is received or until
the packet has been sent RR times.
Note: For retries to work correctly, all modules in the system must have retries enabled.
RS (RSSI) Command
<Diagnostics> RS Command returns the signal
level of the last packet received. This reading is
useful for determining range characteristics of the
XStream Modules under various conditions of
noise and distance.
Once the command is issued, the module will
AT Command: ATRS
Binary Command: 0x1C (28 decimal)
Parameter Range: 0x06 – 0x36 (read-only)
Number of bytes returned: 1
Minimum Firmware Version Required: 4.22
return a value between 0x6 and 0x36 where 0x36 represents a very strong signal level and 0x4
indicates a low signal level.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
RT (DI2 Configuration) Command
<Serial Interfacing> RT command is used to
dictate the behavior of the DI2/
/CMD line. RT
flow
Command must be issued to enable
control or binary programming.
AT Command: ATRT
Binary Command: 0x16 (22 decimal)
Parameter Range: 0 – 2
Parameter
Configuration
Value
0
disabled
1
Enable Binary Programming
2
Enable
Flow Control
Default Parameter Value: 0
Number of bytes returned: 1
SB (Stop Bits) Command
SB Command is used to set/read the number of
stop bits in the data packets.
AT Command: ATSB
Binary Command: 0x36 (54 decimal)
Parameter Range: 0 – 1
Parameter
Value
0
1
Configuration
Default Parameter Value: 0
1 stop bits
2 stop bits
Number of bytes returned: 1
Minimum Firmware Version Required: 4.2B
SH (Serial Number High) Command
<Diagnostics> Set/Read the serial number high
word of the module.
AT Command: ATSH
Binary Command: 0x25 (37 decimal)
Parameter Range: 0 – 0xFFFF (read-only)
Number of bytes returned: 2
Related Commands: SL (Serial Number Low)
Minimum Firmware Version Required: 4.27C
SL (Serial Number Low) Command
<Diagnostics> Set/Read the serial number low
word of the module.
AT Command: ATSH
Binary Command: 0x26 (38 decimal)
Parameter Range: 0 – 0xFFFF (read-only)
Number of bytes returned: 2
Related Commands: SH (Serial Number High)
Minimum Firmware Version Required: 4.27C
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
SM (Sleep Mode) Command
<Sleep Mode (Low Power)> SM Command is
used to adjust Sleep Mode settings. By default,
Sleep Mode is disabled and the module remains
continually active. SM Command allows the
module to run in a lower-power state and be
configured in one of eight settings.
Cyclic Sleep settings wake the module after the
amount of time designated by SM Command. If
the module detects a wake-up initializer during
the time it is awake, it will synchronize with the
transmitter and start receiving data after the
wake-up initializer runs its duration. Otherwise, it
returns to Sleep Mode and continue to cycle in
and out of inactivity until the Wake-up Initializer
is detected. If a Cyclic Sleep setting is chosen,
the ST, LH and HT parameters must also be set
as described in the “Sleep Mode” section of this
manual.
AT Command: ATSM
Binary Command: 0x01
Parameter Range: 0 – 8
Parameter
Value
0
1
2
3
4
5
6
7
8
Configuration
Disabled
Pin Sleep
Serial Port Sleep
Cyclic 0.5 second sleep
(Module wakes every 0.5
seconds)
Cyclic 1.0 second sleep
Cyclic 2.0 second sleep
Cyclic 4.0 second sleep
Cyclic 8.0 second sleep
Cyclic 16.0 second sleep
Default Parameter Value: 0
Number of bytes returned: 1
Related Commands:
For Pin Sleep – PC (Power-up Mode), PW (Pin
Wake-up)
For Serial Port Sleep – ST (Time before Sleep)
For Cyclic Sleep – ST (Time before Sleep), LH
(Wake-up Initializer Timer), HT (Time Before
Wake-up Initializer), PW (Pin Wake-up)
ST (Time before Sleep) Command
<Sleep Mode (Low Power)> ST Command sets
the period of time (in tenths of seconds) in which
the module remains inactive before entering into
Sleep Mode. For example, if the ST Parameter is
set to 0x64 (100 decimal), the module will enter
into Sleep mode after 10 seconds of inactivity (no
transmitting or receiving). This command can
only be used if Cyclic Sleep or Serial Port Sleep
Mode settings have been selected using SM
(Sleep Mode) Command.
© 2014 Digi International Inc.
AT Command: ATST
Binary Command: 0x02
Parameter Range: 0x10 – 0xFFFF
(x 100 milliseconds)
Default Parameter Value: 0x64 (100 decimal)
Number of bytes returned: 2
Related Commands: SM (Sleep Mode), LH
(Wake-up Initializer Timer), HT (Time before
Wake-up Initializer)
29
XStream™ OEM RF Module – Product Manual v4.2B5
SY (Time before Initialization) Command
<Networking> SY Command keeps a
communication channel open as long as module
transmits or receives before the active connection
expires. It can be used to reduce latency in a
query/response sequence and should be set 100
ms longer than the delay between transmissions.
AT Command: ATSY
Binary Command: 0x17 (23 decimal)
Parameter Range: 0 – 0xFF
(x 100 milliseconds)
Default Parameter Value: 0 (Disabled - channel
initialization information is sent with each RF
packet.)
This command allows multiple XStream Modules
Number of bytes returned: 1
to share a hopping channel for a given amount of
time after receiving data. By default, all packets
include an RF initializer that contains channel information used to synchronize any listening
receivers to the transmitter’s hopping pattern. Once a new module comes within range, it is able
to instantly synchronize to the transmitter and start receiving data. If no new modules are
introduced into the system, the synchronization information becomes redundant once modules
have become synchronized.
SY Command allows the modules to remove this information from the RF Initializer after the
initial synchronization. For example, changing the SY Parameter to 0x14 (20 decimal) allows all
modules to remain in sync for 2 seconds after the last data packet was received. Synchronization
information is not re-sent unless transmission stops for more than 2 seconds. This command
allows significant savings in packet transmission time.
Warning:
Not recommended for use in an interference-prone environment. Interference can
break up the session and the communications channel will not be available again
until SY time expires.
With SY set to zero, the channel session is opened and closed with each transmission - resulting
in a more robust link with more latency.
TR (Transmit Error Count) Command
<Diagnostics> TR Command records the number
of retransmit failures. This number is
incremented each time a packet is not
acknowledged within the number of retransmits
specified by the RR (Retries) Command. It
therefore counts the number of packets that were
not successfully received and have been dropped.
AT Command: ATTR
The TR Parameter is not non-volatile and will
therefore be reset to zero each time the module
is reset.
Minimum Firmware Version Required: 4.22
Binary Command: 0x1B (27 decimal)
Parameter Range: 0 – 0xFFFF
Default Parameter Value: 0
Number of bytes returned: 2
Related Commands: RR (Retries)
TT (Streaming Limit) Command
<Networking> TT Command defines a limit on
the number of bytes that can be sent out before
a random delay is issued. TT Command is used to
simulate full-duplex behavior.
If a module is sending a continuous stream of RF
data, a delay is inserted which stops its
transmission and allows other modules time to
transmit (once it sends number of bytes specified
by TT Command). Inserted random delay lasts
between 1 and “RN + 1” delay slots, where each
delay slot lasts 38 ms.
© 2014 Digi International Inc.
AT Command: ATTT
Binary Command: 0x1A (26 decimal)
Parameter Range: 0 – 0xFFFF (0 = disabled)
Default Parameter Value: 0xFFFF (65535
decimal)
Number of bytes returned: 2
Related Commands: RN (Delay Slots)
Minimum Firmware Version Required: 4.22
30
XStream™ OEM RF Module – Product Manual v4.2B5
VR (Firmware Version) Command
<Diagnostics> Read the Firmware Version of the
XStream Module.
AT Command: ATVR
Binary Command: 0x14 (20 decimal)
Parameter Range: 0 – 0xFFFF (read-only)
Number of bytes returned: 2
WR (Write) Command
<(Special)> WR Command writes configurable
AT Command: ATWR
parameters to the module’s non-volatile memory
Binary Command: 0x08
(Parameter values remain in the module’s
memory until overwritten by future use of WR Command).
If changes are made without writing them to non-volatile memory, the module reverts back to
previously saved parameters the next time the module is powered-on.
© 2014 Digi International Inc.
31
XStream™ OEM RF Module – Product Manual v4.2B5
Appendix A: Agency Certifications
FCC Certification
The XStream OEM RF Module complies with Part 15 of the FCC rules and regulations. Compliance
with the labeling requirements, FCC notices and antenna usage guidelines is required.
To fulfill the FCC Certification requirements, the OEM must comply with the following FCC
regulations:
1.
The system integrator must ensure that the text on the external label provided with this
device is placed on the outside of the final product (Figure A.1 for 900 MHz operations or
Figure A.2 for 2.4 GHz operations).
2.
The XStream OEM RF Module may be used only with Approved Antennas that have been
tested with this module. (Table A.1 or Table A.2)
FCC Notices:
IMPORTANT: The 9XStream (900 MHz) and 24XStream (2.4 GHz) OEM Modules have been certified by
the FCC for use with other products without any further certification (as per FCC section 2.1091).
Changes or modifications not expressly approved by Digi could void the user’s authority to operate
the equipment.
IMPORTANT: OEMs must test their final product to comply with unintentional radiators (FCC section
15.107 and 15.109) before declaring compliance of their final product to Part 15 of the FCC Rules.
IMPORTANT: The XStream OEM RF Modules have been certified for remote and base radio
applications. If the XStream will be used for portable applications, the device must undergo SAR
testing.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
• Re-orient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
© 2014 Digi International Inc.
32
XStream™ OEM RF Module – Product Manual v4.2B5
OEM Labeling Requirements
Label Warning
WARNING
The Original Equipment Manufacturer (OEM) must ensure that FCC labeling
requirements are met. This includes a clearly visible label on the outside of the
final product enclosure that displays the contents shown in the figure below.
Figure A.1.
Required FCC Label for OEM products containing 9XStream (900 MHz) OEM RF Module
Contains FCC ID: OUR9XSTREAM
The enclosed device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference and (2) this device must accept any
interference received, including interference that may cause undesired operation.
Figure A.2.
Required FCC Label for OEM products containing 24XStream (2.4 GHz) OEM RF Module
Contains FCC ID: OUR-24XSTREAM
The enclosed device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference and (2) this device must accept any
interference received, including interference that may cause undesired operation.
Antenna Usage
Antenna Warning
WARNING:
This device has been tested with Reverse Polarity SMA connectors with the
antennas listed in Tables A.1 and A.2 of Appendix A. When integrated in OEM
products, fixed antennas require installation preventing end-users from replacing
them with non-approved antennas. Antennas not listed in the tables must be
tested to comply with FCC Section 15.203 (unique antenna connectors) and Section
15.247 (emissions).
RF Exposure
WARNING:
This equipment is approved only for mobile and base station transmitting devices,
separation distances of (i) 20 centimeters or more for antennas with gains < 6 dBi
or (ii) 2 meters or more for antennas with gains ≥ 6 dBi should be maintained
between the antenna of this device and nearby persons during operation. To
ensure compliance, operation at distances closer than this is not recommended.
The preceding statement must be included as a CAUTION statement in manuals for OEM products
to alert users on FCC RF Exposure compliance.
Digi Modules are pre-FCC approved for use in fixed base station and mobile applications. As long
as the antenna is mounted at least 20 cm (8 in) from nearby persons, the application is
considered a mobile application. If the antenna will be mounted closer than 20 cm to nearby
persons, then the application is considered “portable” and requires an additional test performed
on the final product. This test is called the Specific Absorption Rate (SAR) testing and measures
the emissions from the module and how they affect the person.
Over 100 additional antennas have been tested and are approved for use with Digi 900 MHz
Modules (including “Mag Mount”, “Dome”, “Multi-path” and “Panel” antennas). Because of the
large number of approved antennas, Digi requests that you send specific information about an
antenna you would like to use with the module and Digi will evaluate whether the antenna is
covered under our FCC filing. Contact Digi.
© 2014 Digi International Inc.
33
XStream™ OEM RF Module – Product Manual v4.2B5
FCC-Approved Antennas
Table A.1.
Antennas approved for use with 9XStream (900 MHz) OEM RF Modules.
Manufacturer
Part Number
Type
Gain
Application
Min. Separation Distance
*
*
*
*
A09-Y8
*
*
A09-Y11 (FCC pending)
A09-F2
A09-F5
A09-F8
*
*
A09-M7
A09-H
A09-HBMM-P5I
A09-QBMM-P5I
Yagi
Yagi
Yagi
Yagi
Yagi
Yagi
Omni Direct.
Omni Direct.
Omni Direct.
Omni Direct.
Omni Direct.
Omni Direct.
1/2 wave antenna
1/2 wave antenna
1/4 wave antenna
1/4 wave integrated
wire antenna
6.2 dBi
7.2 dBi
8.2 dBi
9.2 dBi
10.2 dBi
11.2 dBi
2.2 dBi
5.2 dBi
8.2 dBi
9.2 dBi
7.2 dBi
7.2 dBi
2.1 dBi
2.1 dBi
1.9 dBi
Fixed/Mobile **
Fixed/Mobile **
Fixed/Mobile **
Fixed/Mobile **
Fixed/Mobile **
Fixed/Mobile **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed/Mobile **
Fixed/Mobile **
Fixed/Mobile **
20 cm
20 cm
20 cm
20 cm
20 cm
20 cm
20 cm
20 cm
20 cm
20 cm
20 cm
20 cm
20 cm
1 cm
1 cm
1.9 dBi
Fixed/Mobile **
1 cm
Digi
*
*
Digi
Digi
Digi
Digi
*
*
Digi
Digi
Digi
Digi
*
Table A.2.
*
Antennas approved for use with 24XStream (2.4 GHz) OEM RF Modules.
Manufacturer
Part Number
Type
Gain
Application
Min. Separation Distance
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
A24-P8
A24-P13
*
*
*
A24-P19
A24-HABMM-P6I
A24-HBMM-P6I
A24-HABSM
A24-QABMM-P6I
A24-Q1
*
Yagi
Yagi
Yagi
Yagi
Yagi
Yagi
Yagi
Yagi
Yagi
Omni Direct
Omni Direct
Omni Direct
Omni Direct
Omni Direct
Omni Direct
Omni Direct
Omni Direct
Omni Direct
Panel
Panel
Panel
Panel
Panel
Panel
Dipole
Dipole
Dipole
Monopole
Monopole
Monopole
6 dBi
8.8 dBi
9 dBi
10 dBi
11 dBi
12 dBi
12.5 dBi
13.5 dBi
15 dBi
2.1 dBi
3 dBi
5 dBi
7.2 dBi
8 dBi
9.5 dBi
10 dBi
12 dBi
15 dBi
8.5 dBi
13 dBi
14 dBi
15 dBi
16 dBi
19 dBi
2.1 dBi
2.1 dBi
2.1 dBi
1.9 dBi
1.9 dBi
1.9 dBi
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed/Mobile **
Fixed/Mobile **
Fixed/Mobile **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed **
Fixed/Mobile **
Fixed/Mobile **
Fixed/Mobile **
Fixed/Mobile **
Fixed/Mobile **
Fixed/Mobile **
2m
2m
2m
2m
2m
2m
2m
2m
2m
20 cm
20 cm
20 cm
2m
2m
2m
2m
2m
2m
2m
2m
2m
2m
2m
2m
20 cm
20 cm
20 cm
20 cm
20 cm
20cm
Digi
Digi
*
*
*
Digi
Digi
Digi
Digi
Digi
Digi
*
* FCC‐approved antennas not inventoried by Digi – Contact Digi (866) 765‐9885 for information.
** Can be approved for portable applications if integrator gains approval through SAR testing
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
IC (Industry Canada) Certification
Labeling requirements for Industry Canada are similar to those of the FCC. A clearly visible label
on the outside of the final product enclosure must display the following text:
Contains Model 9XStream Radio (900 MHz), IC: 4214A-9XSTREAM
Contains Model 24XStream Radio (2.4 GHz), IC: 4214A 12008
Integrator is responsible for its product to comply with IC ICES-003 and FCC Part 15, Sub. B
- Unintentional Radiators. ICES-003 is the same as FCC Part 15 Sub. B and Industry Canada
accepts FCC test report or CISPR 22 test report for compliance with ICES-003.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Appendix B: Development Guide
XStream OEM Development Kit Contents
The Development Kit includes all the hardware and software needed for a robust wireless link:
Table B.1. XStream Development Kit Contents
Item
Qty.
Description
Part Number
Quick Start Guide
1
Familiarizes users with some of the module’s most important functions.
MD0016
CD
1
Contains documentation, software and tools needed for RF operation.
MD0030
XStream OEM RF Module
1
Long Range OEM RF Module w/ RPSMA Connector
varies
XStream OEM RF Module
1
Long Range OEM RF Module w/ attached wire antenna
varies
Digi Interface Board
2
Enables communication to RS-232/485/422 devices
XIB-R
Antenna
1
900 MHz RPSMA, 6" Half-Wave, dipole, articulating
A09-HASM-675
Serial Loopback Adapter
1
Connects to the female RS-232 (DB-9) serial connector of the Digi
Interface Board and can be used to configure the module to function as
a repeater (for range testing)
JD2D3-CDL-A
NULL Modem Adapter
(male-to-male)
1
Connects to the female RS-232 (DB-9) serial connector of the Digi
Interface Board and can be used to connect the module to another
DCE (female DB9) device
JD2D2-CDN-A
NULL Modem Adapter
(female-to-female)
1
Used to bypass radios to verify serial cabling is functioning properly
JD3D3-CDN-A
Male DB-9 to
RJ-45 Adapter
1
Facilitates adapting the DB-9 Connector of the Digi Interface Board to a
CAT5 cable (male DB9 to female RJ45)
JE1D2-CDA-A
Female DB-9 to
RJ-45 Adapter
1
Facilitates adapting the DB-9 Connector of the Digi Interface Board to a
CAT5 cable (female DB9 to female RJ45)
JE1D3-CDA-A
Power Adapter
2
Allows Interface Board to be powered by a 110 Volt AC power supply
JP4P2-9V10-6F
RS-232 Cable (6’)
2
Connects interface board to devices having an RS-232 serial port
JD2D3-CDS-6F
Interfacing Hardware
Digi developed proprietary interface boards to facilitate the connection between XStream OEM RF
Modules and serial devices. Digi has developed an interface board that supports the RS232/485/422 protocols (Digi part number: XIB-R).
The following section illustrates properties of the Digi XIB-R Interface Board. The Digi Interface
board provides means for connecting the XStream Module to any node that has an available RS232 or RS-485/422 connection. Since the module requires signals to enter at CMOS voltages, one
of the main functions of the interface board is to convert signals between CMOS and RS-232
levels.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Digi RS-232/485 Interface Board
B.1a. Power Switch
Figure B.1.
Front View
Move the Power Switch to the on (up) position to power the
Interface Board. DIP Switch (B.2a) settings are only read
during a power-up sequence.
B.1b. LEDs
The LED indicators visualize diagnostic status information. The
module’s status is represented as follows:
B.1a.
Power
Switch
B.1c. DB‐9
Serial Port
B.1b.
LEDs
Yellow (top LED) = Serial Data Out (to host)
B.1d.
Power
Connector
Green (middle) = Serial Data In (from host)
Red (bottom) = Power/TX Indicator (Red light is on when
powered, off briefly during RF transmission)
B.1c. DB-9 Serial Port
Standard female DB-9 (RS-232) DCE connector – This connector
can be also used for RS-485 and RS-422 connections.
B.1d. Power Connector
7-18 VDC Power Connector (Center positive, 5.5/2.1mm) – Power
can also be supplied through Pin 9 of the DB-9 Serial Port.
B.2a. DIP Switch
Figure B.2.
Back View
B.2b.
B.2a.
DIP Switch
Config Switch
The DIP Switch automatically configures the XStream OEM RF
Module to operate in different modes. Each time the module
assembly (interface board + the RF Module) is powered-on,
intelligence on the XIB-R interface board programs the module
according to the positions of the DIP Switch. (See figure below
for DIP Switch settings)
NOTE: In cases where AT Commands should not be sent each time
the module assembly is powered-on, the processor must be
disabled by populating J7 on the interface board.
B.2b. Config (Configuration) Switch
The Configuration Switch provides an alternate way to enter “AT
Command Mode”. To enter “AT Command Mode” at the module’s
default baud rate, hold the Configuration Switch down while
powering on the module using the Power Switch (B.1a).
Figure B.3.
Digi XIB‐R (RS‐232/485) Interface Board DIP Switch Settings
Refer to table in the
Automatic DIP Switch
Configurations section (next
page) for more information
regarding configurations
triggered by the DIP Switch.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Automatic DIP Switch Configurations
Each time the module assembly (XStream Module mounted to an XIB-R Interface Board) is
powered on, intelligence on the Digi Interface Board sends AT Commands that program the
module based on positions of the DIP Switch. Automatic configurations that take place during the
power-on sequence affect module parameter values as shown below.
To avoid overwriting previously stored custom configurations (due to the automatic
configurations that take place each time the module assembly is powered on), it is necessary to
disable a processor located on the XIB-R interface board. To disable the processor, populate J7 of
the XIB-R Interface Board. By default, J7 jumper is not populated.
Table B.2. Module Power‐up Options (J7 jumper and Config Switch)
Condition
Behavior
If J7 is populated
Processor is disabled and AT Commands are not sent to the Module.
If Config Switch is pressed
Processor is disabled and Module enters into AT Command Mode.
If J7 is NOT populated and Config Switch
is NOT pressed
Execute logic as shown in table below.
Table B.3. AT Commands Sent as result of DIP Switch Settings (SW = DIP Switch)
Condition
Behavior
Restore Default Parameter Values of the Module
AT Commands sent:
ATRE (Restore Defaults) Command
ATWR (Write) Command
AT Commands sent:
ATCS 0 (RS-232 Operation: CTS function for CTS line,
DB-9 pin 8)
ATCD 2 (DO3 - RX LED = low)
AT Commands sent:
ATCS 3 (RS-485 or RS-422 Operation)
ATCD 2 (DO3 - RX LED = low)
If SW5 and SW6 are OFF (down)
AT Commands sent:
ATNB 0 (parity = none)
If SW5 is OFF (down) and SW6 is ON (up)
AT Commands sent:
ATNB 1 (parity = even)
If SW5 is ON (up) and SW6 is OFF (down)
AT Commands sent:
ATNB 2 (parity = odd)
If SW5 is ON (up) and SW6 is ON (up)
AT Commands sent:
ATNB 5 (parity = 9th bit data over-the-air)
AT Commands sent:
ATCN (Exit AT Command Mode)
If SW1 and SW2 are ON (up)
Serial Interfacing Options
If SW1 is ON (up)
If SW1 is OFF (down)
Parity Options
Exit AT Command Mode
Always
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Adapters
The XStream Development Kit comes with several adapters that support the following functions:
• Performing Range Tests
• Testing Cables
• Connecting to other RS-232 DCE and DTE devices
• Connecting to terminal blocks or RJ-45 (for RS-485/422 devices)
NULL Modem Adapter (male-to-male)
Part Number: JD2D2-CDN-A (Black, DB-9 M-M) The male-to-male NULL modem adapter is used
to connect two DCE devices. A DCE device connects with a straight-through cable to the male
serial port of a computer (DTE).
Figure B.4. Male NULL modem adapter and pinouts
Figure B.5. Example of a module assembly (DCE Device) connecting to another DCE device)
NULL Modem Adapter (female-to-female)
Part Number: JD3D3-CDN-A (Gray, DB-9 F-F) The female-to-female NULL modem adapter is
used to verify serial cabling is functioning properly. To test cables, insert the female-to-female
NULL modem adapter in place of a pair of module assemblies (XIB-R-R interface board +
XStream Module) and test the connection without radio modules in the connection.
Figure B.6. Female NULL modem adapter and pinouts
Serial Loopback Adapter
Part Number: JD2D3-CDL-A (Red, DB-9 M-F) The serial loopback adapter is used for range
testing. During a range test, the serial loopback adapter configures the module assembly to
function as a repeater by looping serial data back into the radio for retransmission.
Figure B.7. Serial loopback adapter and pinouts
For use in RS‐485/422 systems:
DB‐9 to RJ‐45 adapters are
documented on p45.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Antennas
(Refer to Appendix A for a list of FCC-Approved Antennas)
Factors that determine wireless link range:
• Ambient RF noise (interference)
• Line-of-sight obstructions
• Transmit power
• Receive sensitivity
• Antenna configuration
XStream Antenna Connector Options
To comply with the FCC rules and obtain a “modular” certification, it is required that XStream
Modules utilize a “non standard” connector. This is to ensure the modules are used only with
approved antennas. The XStream Modules have two connector options:
• RPSMA
• MMCX
Alternatively, the XStream Module can be order with an attached wire antenna.
RPSMA
The Reverse Polarity SMA (RPSMA) connector uses the same body as a
regular SMA connector. In order to be a “non standard” connector, the
gender of the center conductor is changed. The female RPSMA actually
has a male center conductor.
MMCX
The Micro-Miniature Connector (MMCX) is a good solution for
high volume, price-sensitive applications. The small size and
snap on connection make it suitable for attaching an external
mounted antenna to a module inside an enclosure.
Antenna Cables
RF cables are typically used to connect a radio installed in a cabinet to an antenna mounted
externally. As a general rule, it is best to keep the RF cable as short as possible. All cables
promote signal loss which is usually measured in dB loss per 100 ft. Digi provides LMR- 195 rated
cables. Common cables and dB losses are included in this table:
Table B.4. Potential Signal Strength Loss due to Antenna Cable Length
Cable
Type
Loss at 900 MHz per 100’
(loss per 100m)
Loss at 2.4 GHz per 100’
(loss per 100m)
Diameter
RG-58
14.5 dB (47.4 dB)
25.3 dB (83.2 dB)
0.20” (4.95 mm)
RG-174
25.9 dB (85.0 dB)
44.4 dB (145.8 dB)
0.10” (2.54 mm)
RG-316
24.7 dB (81.0 dB)
42.4 dB (139.0 dB)
0.10” (2.59 mm)
LMR-195
11.1 dB (36.5 dB)
19.0 dB (62.4 dB)
0.20” (4.95 mm)
LMR-240
7.6 dB (24.8 dB)
12.9 dB (42.4 dB)
0.24“ (6.10 mm)
LMR-600
2.5 dB (8.2 dB)
4.4 dB (14.5 dB)
0.59” (15.0 mm)
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Interfacing Protocol
The Module Assembly supports the following interfacing protocols:
• RS-232
• RS-485 (2-wire) Half-Duplex
• RS-485 (4-wire) and RS-422
RS-232 Operation
DIP Switch Settings and Serial Port Connections
Figure B.8.
RS‐232 DIP Switch Settings
Figure B.9
Pins used on the female RS‐232 (DB‐9)
Serial Connector
DIP Switch settings are read and applied
only while powering‐on.
Table B.5. RS‐232 Signals and their implementations on the XStream Module Assembly
(Low‐asserted signals are distinguished by horizontal line over pin name.)
DB-9 Pin
RS-232 Name
AT Command
Reference*
Description
Implementation
1
DCD
DO3
Data-Carrier-Detect
Connected to DSR (pin6)
2
RXD
DO
Received Data
Serial data exiting
the Module Assembly (to host)
3
TXD
DI
Transmitted Data
Serial data entering
into the Module Assembly (from host)
4
DTR
DI3
Data-Terminal-Ready
Can enable POWER-DOWN on the Module Assembly
5
GND
-
Ground Signal
Ground
6
DSR
DO3
Data-Set-Ready
Connected to DCD (pin1)
DI2
Request-to-Send
flow control or
Provides
enables “Command Mode” on the Module
DO2
Clear-to-Send
-
Ring Indicator
7
/ CMD
8
9
DI
Provides
flow control
Optional power input that is connected internally to the
positive lead of the front power connector
* The AT Command Reference provides as associative tag when using the AT commands to program the
Module. “DI” stands for Data Input and “DO” for Data Output.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Wiring Diagram: RS-232 DTE Device to a DCE Module Assembly
Figure B.10. RS‐232 DTE (male connector) device wired to an XStream Module Assembly (female connector)
Wiring Diagram: DCE Module Assembly to an RS-232 DCE Device
Figure B.11. XStream Module Assembly (female connector) wired to an RS‐232 DTE (male connector) device
Sample Wireless Connection: DTE � DCE �---------7 DCE � DCE
Figure B.12 Typical wireless connection used for serial communications between DTE and DCE devices
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
RS-485 (2-wire) Operation
DIP Switch Settings and Serial Port Connections
Figure B.13.
RS‐485 (2‐wire) Half‐Duplex
DIP Switch Settings
Figure B.14.
Pins used on the female RS‐232 (DB‐9)
Serial Connector
Figure B.15
RS‐485 (2‐wire) with Termination (optional)
Termination is the 120 Ω resistor between T+ and T-.
DIP Switch settings are read and applied only while powering-on.
Note:
Refer to Figures B.22. and B.23 for RJ-45 connector pin designations
used in RS-485/422 environments.
Table B.6. RS‐485 (2‐wire half‐duplex) Signals and their implementations on the XStream Module
Assembly
DB-9 Pin
RS-485 Name
Description
Implementation
2
T/R- (TRA)
Negative Data Line
Transmit serial data to and from the
XStream Module Assembly
5
GND
Ground Signal
Ground
8
T/R+ (TRB)
Positive Data Line
Transmit serial data to and from the
XStream Module Assembly
9
PWR
Power
Optional power input that is connected internally
to the front power connector
1, 3, 4, 6, 7
not used
Wiring Diagram: RS-485 (2-wire) Half-Duplex
Figure B.16. XStream Module Assembly in an RS‐485 (2‐wire) half‐duplex environment
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
RS-485 (4-wire) and RS-422 Operation
DIP Switch Settings and Serial Port Connections
Figure B.17
RS‐485 (4‐wire) and RS‐422
DIP Switch Settings
Figure B.18
Pins used on the female RS‐232 (DB‐9)
Serial Connector
Figure B.19
RS‐485 (4‐wire) and RS‐422 with Termination (optional)
Termination is the 120 Ω resistor between T+ and T-.
DIP Switch settings are read and applied only while powering-on.
Table B.7. RS‐485/422 (4‐wire) Signals and their implementations with the Module Assembly
DB-9 Pin
RS-485/422
Name
Description
Implementation
2
T- (TA)
Transmit Negative
Data Line
Serial data sent from the XStream Module Assembly
3
R- (RA)
Receive Negative
Data Line
Serial data received by the XStream Module Assembly
5
GND
Signal Ground
Ground
7
R+ (RB)
Receive Positive
Data Line
Serial data received by the XStream Module Assembly
8
T+ (TB)
Transmit Positive
Data Line
Serial data sent from the XStream Module Assembly
9
PWR
Power
Optional power input that is connected internally
to the front power connector
1, 4, 6
not used
Wiring Diagram: RS-485 (4-wire) Half-Duplex
Figure B.20. XStream Module Assembly in an RS‐485 (4‐wire) environment
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Wiring Diagram: RS-422
Figure B.21. XStream Module Assembly in an RS‐485 (4‐wire) environment
RS-485/422 Connection Guidelines
The RS-485/422 protocol provides a solution for wired communications that can tolerate high
noise and push signals over long cable lengths. RS-485/422 signals can communicate as far as
4000 feet (1200 m). RS-232 signals are suitable for cable distances up to 100 feet (30.5 m).
RS-485 offers multi-drop capability in which up to 32 nodes can be connected. The RS-422
protocol is used for point-to-point communications.
Suggestions for integrating the XStream Module with the RS-485/422 protocol:
1.
When using Ethernet twisted pair cabling: Select wires so that T+ and T- are connected to
each wire in a twisted pair. Likewise, select wires so that R+ and R- are connected to a
twisted pair. (For example, tie the green and white/green wires to T+ and T-.)
2.
For straight-through Ethernet cable (not cross-over cable) – The following wiring pattern
works well: Pin3 to T+, Pin4 to R+, Pin5 to R-, Pin6 to T-
3.
Note that the connecting cable only requires 4 wires (even though there are 8 wires).
4.
When using phone cabling (RJ-11) – Pin2 in the cable maps to Pin3 on opposite end of cable
and Pin1 maps to Pin4 respectively.
Figure B.22 Male (yellow) DB‐9 to RJ‐45 Adapters
Figure B.23. Female (green) DB‐9 to RJ‐45 Adapters
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
X-CTU Software
X-CTU is Digi-provided software used to interface with and configure XStream OEM RF
Modules. The software application is organized into the following four tabs:
• PC Settings tab - Setup PC serial ports to interface with an XStream Module assembly
• Range Test tab – Test XStream Module's range and monitor packets sent and received
• Terminal tab – Set and read XStream Module parameters using AT Commands
• Modem Configuration tab – Set and read XStream Module parameters
Figure B.24 X‐CTU User Interface (PC Settings, Range Test, Terminal and Modem Configuration tabs)
Install XCTU software
Double-click the "setup_X-CTU.exe" file and follow prompts of the installation screens. This file is
located on the Digi Support site at www.digi.com/support.
Setup
To use the XCTU software, a module assembly (XStream Module mounted to a Digi XIB- R-R
Interface Board) must be connected to the serial port of a PC. The data rate and parity settings of
the serial port (“PC Settings” tab) must match those of the module (BD (Baud Rate) and NB
(Parity) Commands).
Serial Communications Software
A terminal program is built into the XCTU Software. Other terminal programs such as
“HyperTerminal” can also be used. When issuing AT Commands through a terminal program
interface, use the following syntax:
Figure B.25 Syntax for sending AT Commands:
NOTE: To read a parameter value stored in a register, leave the parameter field blank.
The example above issues DT Command to change destination address of the module to “0x1F”.
To save the new value to the module’s non-volatile (long term) memory, issue WR (Write)
Command after modifying parameters.
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Appendix C: Additional Information
1-Year Warranty
XStream RF Modems from Digi International Inc. (the "Product") are warranted against defects in materials
and workmanship under normal use, for a period of 1-year from the date of purchase. In the event of a
product failure due to materials or workmanship, Digi will repair or replace the defective product. For
warranty service, return the defective product to Digi, shipping prepaid, for prompt repair or replacement.
The foregoing sets forth the full extent of Digi's warranties regarding the Product. Repair or replacement at
Digi's option is the exclusive remedy. THIS WARRANTY IS GIVEN IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, AND DIGI SPECIFICALLY DISCLAIMS ALL WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL DIGI, ITS
SUPPLIERS OR LICENSORS BE LIABLE FOR DAMAGES IN EXCESS OF THE PURCHASE PRICE OF THE
PRODUCT, FOR ANY LOSS OF USE, LOSS OF TIME, INCONVENIENCE, COMMERCIAL LOSS, LOST
PROFITS OR SAVINGS, OR OTHER INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PRODUCT, TO THE FULL EXTENT SUCH MAY BE
DISCLAIMED BY LAW. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF
INCIDENTAL OR CONSEQUENTIAL DAMAGES. THEREFOR, THE FOREGOING EXCLUSIONS MAY
NOT APPLY IN ALL CASES. This warranty provides specific legal rights. Other rights which vary from state
to state may also apply.
Ordering Information
Figure C.1 Digi OEM RF Module Part Numbers Key
© 2014 Digi International Inc.
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XStream™ OEM RF Module – Product Manual v4.2B5
Contact Digi
If you need assistance, contact technical support:
Documentation:
www.digi.com/support/
Technical Support:
Phone
Online
© 2014 Digi International Inc.
(866) 765-9885 toll-free U.S. and Canada
(801) 765-9885 Worldwide
8:00 am – 5:00 pm (U.S. Central Time)
www.digi.com/support/eservice
48

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