MDEV-xxx-ES User s Guide

MDEV-xxx-ES User s Guide
ES Series
Master Development System
User's Guide
! Warning: Some customers may want Linx radio frequency (“RF”)
products to control machinery or devices remotely, including machinery
or devices that can cause death, bodily injuries, and/or property
damage if improperly or inadvertently triggered, particularly in industrial
settings or other applications implicating life-safety concerns (“Life and
Property Safety Situations”).
Table of Contents
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NO OEM LINX REMOTE CONTROL OR FUNCTION MODULE
SHOULD EVER BE USED IN LIFE AND PROPERTY SAFETY
SITUATIONS. No OEM Linx Remote Control or Function Module
should be modified for Life and Property Safety Situations. Such
modification cannot provide sufficient safety and will void the product’s
regulatory certification and warranty.
4^
Customers may use our (non-Function) Modules, Antenna and
Connectors as part of other systems in Life Safety Situations, but
only with necessary and industry appropriate redundancies and
in compliance with applicable safety standards, including without
limitation, ANSI and NFPA standards. It is solely the responsibility
of any Linx customer who uses one or more of these products to
incorporate appropriate redundancies and safety standards for the Life
and Property Safety Situation application.
7^
Do not use this or any Linx product to trigger an action directly
from the data line or RSSI lines without a protocol or encoder/
decoder to validate the data. Without validation, any signal from
another unrelated transmitter in the environment received by the
module could inadvertently trigger the action.
All RF products are susceptible to RF interference that can prevent
communication. RF products without frequency agility or hopping
implemented are more subject to interference. This module does not
have a frequency hopping protocol built in.
Do not use any Linx product over the limits in this data guide.
Excessive voltage or extended operation at the maximum voltage could
cause product failure. Exceeding the reflow temperature profile could
cause product failure which is not immediately evident.
Do not make any physical or electrical modifications to any Linx
product. This will void the warranty and regulatory and UL certifications
and may cause product failure which is not immediately evident.
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Introduction
Ordering Information
ES Series Transmitter Development Boarad
ES Series Receiver Development Boarad
Using the Development Boards
Troubleshooting
The Prototyping Area
Using the Simplex Encoder / Decoder Section
Using the Data Squelch Circuit
Using the Encoder and Decoder
Range Testing
Host Interface Module
Master Development Software
About Antennas
Using the Boards as a Design Reference
In Closing
USB Host Interface Board Schematic
RS232 Host Interface Board Schematic
RF Section Schematic
Header Section Schematic
Squelch Circuit Schematic
Power Supply Section Schematic
Encoder/Decoder Section Schematic
ES Series Master Development System
User's Guide
Figure 1: ES Series Master Development System
Introduction
The Linx ES Series RF modules offer a simple, efficient and cost-effective
method of adding wireless communication capabilities to any product. The
Master Development System gives a designer all the tools necessary to
correctly and legally incorporate the ES Series into an end product. The
development boards serve several important functions:
•
Rapid Module Evaluation: The boards allow the performance of the ES
Series modules to be quickly evaluated in a user’s environment.
•
Range Testing: Using the on-board encoders and decoders to
generate a simplex transmission, a pair of development boards can be
used to evaluate the range performance of the modules.
•
Design Benchmark: The boards provide a known benchmark against
which the performance of a custom design may be judged.
•
Application Development: An onboard prototyping area allows for the
development of custom circuits directly on the development board. All
signal lines are available on a header for easy access.
•
Protocol Development - The development system features a USB
or RS-232 interface board, which allows a designer to connect the
development board to a PC. Windows-based demonstration software
is also included, which allows for a variety of tests.
– 1 –
Revised 3/18/2015
The Master Development System includes 2 development boards, one
set up for the transmitter and the other for the receiver, 2 ES Series
transmitters*, 2 ES Series receivers*, two CW Series antennas, 2 9V
batteries, demonstration software and full documentation.
ES Series Transmitter Development Boarad
5
*One part is soldered to the board, one extra for use on your first prototype board.
9
Ordering Information
Ordering Information
8
1
Part Number
Description
MDEV-***-ES-USB
ES Series Master Development System - USB
MDEV-***-ES-232
ES Series Master Development System - RS-232
10
11
6
*** = 869, 916MHz
7
12
2
14
Figure 2: Ordering Information
3
13
15
4
Figure 3: ES Series Transmitter Development Board
1. 9V Battery
2. DC Power Jack
3. On-Off Switch
4. Voltage Regulator
5. Host Interface Module
6. Prototype Area
7. Break-Out Header
8. ES Series Transmitter
–2 –
9. RP-SMA Antenna Connector
10. MS Series Encoder
11. Baud Rate Selector Switches
12. MODE_IND LED
13. CREATE button
14. Buzzer Button (S3)
15. Relay Button (S2)
– 3 –
ES Series Receiver Development Boarad
5
Using the Development Boards
7
9
1
10
Troubleshooting
8
12
6
2
If the boards fail to work out of the box, then try the following:
11
13
14
16
3
15
4
Figure 4: ES Series Receiver Development Board
1. 9V Battery
2. DC Power Jack
3. On-Off Switch
4. Voltage Regulator
5. Host Interface Module
6. Prototype Area
7. Data Squelch Circuit
8. Break-Out Header
9. ES Series Receiver
10. RP-SMA Antenna Connector
11. MS Series Decoder
12. Baud Rate Selector Switches
13. MODE_IND LED
14. LEARN Button
15. Buzzer
16. Relay Output
–4 –
All of the module’s connections are made available to the designer via the
wire-wrap header (TS1 / TS2). Jumper shunts have been provided. These
shunts are placed across adjacent pins to control the routing of TX and RX
data. After unpacking the development system, attach an antenna to each
board, install the supplied 9V battery, and turn on the power switches. The
development board is now ready for use.
•
Check the battery to make sure it is not dead.
•
Make sure that the antenna is connected.
•
Make sure that the jumpers are set correctly.
•
Ensure that the baud rate selector switches are set the same on both
boards.
•
Create and learn a new address.
If all of these appear to be in order, then you can call 800-736-6677 or
e-mail [email protected]
– 5 –
The Prototyping Area
Using the Simplex Encoder / Decoder Section
In addition to their evaluation functions, the boards may also be used
for actual product development. They feature a prototyping area for the
addition of application-specific circuitry. The prototyping area is the same
on both boards and contains a large area of plated through-holes so that
external circuitry can be placed on the board. The holes are set at 0.1" on
center with a 0.04" diameter, making it easy to add most industry-standard
SIP and DIP packages to the board. This circuitry can be interfaced with
the ES transmitter or receiver through the breakout header to the right. At
the bottom of this area is a row connected to the 5V power supply and at
the top is a row connected to ground.
The transmitter board features an MS Series remote control encoder with
two push buttons and the receiver board features a decoder with a relay
output and a buzzer. When a button is pressed on the transmitter board,
the status of both buttons is captured and encoded into a data stream
for transmission. The data recovered by the receiver is decoded and the
decoder’s outputs are set to replicate the states of the encoder, driving
either the buzzer or the relay.
Note: The on-board 5-volt regulator has approximately 500mA of
headroom available for additional circuitry. If added circuitry requires a
higher current, the user must add an additional regulator to the prototype
area or power the board from an external supply.
Ground Bus
To activate this area of the board, the
module DATA line must be routed to
the encoder / decoder. Configure the
transmitter board for encoding and
transmission by placing a jumper across TX
DATA and ENCODER and across TX PDN
and PDN ENC on header TS1. Configure
the receiver board for reception and
decoding by placing a jumper across RX
DATA and DECODER on header TS2.
TS1
PDN ENC
TX PDN
PDN RS232
TX RS232
TX DATA
TX ENCODER
/CLK
/CLK SEL
LO V DET
NC
GND
TX
TS2
SQ. DATA
NC
AUDIO REF
AUDIO
RSSI
RX DATA
RX DECODER
RX PDN
RX
Figure TS1
6: Jumper ConfigurationTS2
PDN ENC
TX PDN
PDN RS232
TX RS232
TX DATA
TX ENCODER
/CLK
/CLK SEL
LO V DET
NC
GND
SQ. DATA
NC
AUDIO REF
AUDIO
RSSI
RX DATA
RX DECODER
RX PDN
Once the boards have been configured, place the receiver board on a flat
surface and turn it on. Turn on the transmitter board and press button S0.
You should hear the buzzer on the receiver board sound. Walk away from
the receiver to ascertain the useable range of the link in the environment.
Button S1 activates the relay on the receiver board. The relay’s SPST
TX
RX
contacts can be connected at J2. Any device up to 5A at 30VDC / 120VAC
may be switched through the relay. An external siren or light can be
connected to aid range testing if the on-board buzzer is not loud enough.
Regulator
+5 Volt Bus
Using the Data Squelch Circuit
A data squelch circuit is provided on the receiver development board.
This circuit is used to add both hysteresis and squelching capabilities as
detailed in the ES Series Receiver Data Guide. Since the ES Series receiver
output is not internally squelched, its output continually switches when no
transmission is present. This can cause interrupts and buffer overflows in
external circuitry. A squelch circuit helps eliminate this noise by providing
a qualification threshold for incoming data based on signal strength. This
circuit is not a substitute for robust protocol since squelch can be broken
by unintended interference.
Figure 5: The Development Board Prototyping Area
–6 –
– 7 –
To get a better idea of the circuit’s operation, clip an oscilloscope probe on
both RX DATA and SQ. DATA (Squelch Data). With the transmitter off, the
SQ. DATA line is high (which means that the output is squelched) while RX
DATA is switching randomly. Squelching is accomplished by comparing
RSSI with a voltage reference created by R17 (potentiometer), R18, and
R21. When the RSSI falls below the voltage set by this reference, the
output of the comparator (U6) is pulled to ground. This disables the data
slicer created with the additional comparator contained within U6. Figure
14 shows the schematic of this circuit.
Setting a higher squelch threshold reduces the random noise on the DATA
line but also reduces range. The squelch level affects only the threshold of
the data going to the RS-232 serial port and the SQ DATA line on TS2.
To set squelch, turn off the transmitter and turn on the receiver. Place an
oscilloscope probe on the SQ DATA line, and adjust R17 until SQ DATA
remains high. Two resistors (R27 and R28) are used to connect the module
to the squelch circuit. These may be removed to disconnect the squelch
circuit and prevent it from slightly loading the AUDIO and AUDIO REF lines.
Using the Encoder and Decoder
The MS Series encoder and decoder use a 24-bit address to provide
uniqueness to the transmission and to prevent unintended activation.
The development boards come with a default address. To create a new
address, press and hold the CREATE button on the transmitter board.
The address is randomized for as long as the button is held down. Once
released, the MODE_IND LED begins flashing to indicate that the encoder
is ready to accept Control Permissions. Press the Buzzer and/or Relay
buttons to tell the encoder that they will be used. Press the Create button
again to exit Create Mode, or let the encoder time out after 15 seconds.
On the decoder board, press the LEARN button and the MODE_IND
LED begins flashing to indicate that the decoder is ready to learn a new
address. Press one of the authorized buttons on the transmitter board to
send a signal. Press the LEARN button again to exit Learn Mode, or let the
decoder time out after 17 seconds and the system is ready for use.
The encoder and decoder operate on one of four different baud rates as
set by the baud rate selector switches. A faster baud rate gives a faster
response time. Please see the encoder or decoder data guide for the
settings. If the switch is up then it is connected to Vcc, if it is down then it
is connected to GND.
–8 –
Range Testing
Several complex mathematical models exist for determining path loss in
many environments. These models vary as the transmitter and receiver are
moved from indoor operation to outdoor operation. Although these models
can provide an estimation of range performance in the field, the most
reliable method is to simply perform range tests using the transmitter and
receiver in the intended operational environment.
Simple range testing can be performed with the transmitter and receiver
development boards. Pressing S0 on the transmitter activates the buzzer
on the receiver board, while S1 activates the relay.
As the maximum range of the link in an area is approached, it is not
uncommon for the signal to cut in and out as the transmitter moves. This
is normal and can result from other interfering sources or fluctuating signal
levels due to multipath. Multipath results in cancellation of the transmitted
signal as direct and reflected signals arrive at the receiver at differing times
and phases. The areas in which this occurs are commonly called “nulls”
and simply walking a little further usually restores the signal. If this does not
restore the signal, then the maximum effective range of the link has been
reached.
Since the evaluation boards are intended for use by design engineers,
they are not FCC certified. The transmitter has been set to approximate
legal limits by resistor R29 so that the range test results will approximate
the results from a well-designed, certified product. For applications where
Part 15 limits are not applicable or output levels can be legally raised due
to protocol duty cycle, R29 can be changed according to the attenuation
graph in the ES Series Transmitter Data Guide.
To achieve maximum range, keep objects such as your hand away from
the antenna and ensure that the antenna on the transmitter has a clear and
unobstructed line-of-sight path to the receiver board. Range performance
is determined by many interdependent factors. If the range you are able to
achieve is significantly less than specified by Linx for the products you are
testing, then there is likely a problem with either the board or the ambient
RF environment in which the board is operating. First, check the battery,
switch positions, and antenna connection. Next, measure the receiver’s
RSSI voltage with the transmitter turned off to determine if ambient
interference is present. If this fails to resolve the issue, please contact Linx
technical support.
– 9 –
Host Interface Module
The ES Master Development System
features a Host Interface socket, which
allows the use of two different PC interface
modules. The first is a USB interface
module that uses a standard USB cable to
connect to a PC’s USB port or a USB hub.
The second type of module is a RS-232
interface module that can be connected
to a standard serial COM port on a PC
using a straight-through 9-pin extension
cable (not included). The evaluation board
is considered a DCE device and as such
is designed to be connected using a
straight-thru serial extension cable. Do not
use a null-modem cable as the boards will
not function.
support error detection and correction if it is to be successful. A correctly
designed protocol will provide optimum performance and throughput for
product specific applications while taking into account the timing and
data-rate requirements of the module. For further information on protocol
considerations please refer to Application Note AN-00160.
Figure 7: USB Interface Module
Master Development Software
TS1
TS2
PDN ENC
SQ. DATA
TX PDN
NC
PDN RS232
AUDIO REF
FigureTX8:RS232
RS-232 InterfaceAUDIO
Module
TX DATA
RSSI
TX ENCODER
RX DATA
/CLK
RX DECODER
/CLK SEL
RX PDN
LO V DET
NC
GND
To install, select the module to be used
and then line up the pins on the module
with the headers on the board. Verify that the pin one polarity marks on the
board and on the Host Interface Module match. The USB jack or the D-sub
connector should face away from the board. Press firmly on the module so
TX
RX
that it slides fully into the header.
TS1
TS2
The development system may be prepared
PDN ENC
SQ. DATA
for host operation with the supplied Linx
TX PDN
NC
PDN RS232
AUDIO REF
software by setting the jumpers on the
TX RS232
AUDIO
TX DATA
RSSI
header as shown in the adjacent figure.
TX ENCODER
RX DATA
This routes the module’s data lines to
/CLK
RX DECODER
/CLK SEL
RX PDN
the Host Interface Module. Despite being
LO V DET
NC
electrically interfaced, appropriate protocol
GND
must be employed to ensure reliable and
TX
RX
error-free data transfer since the ES Series
Figure 9: Jumper Configuration
modules do not encode or packetize the
data in any manner. It is important to understand that the development
boards are transparent; that is, the user’s software is entirely responsible
for controlling the timing and error correction aspects of the link. The
evaluation boards have no provision to check or qualify the incoming data.
When designing a protocol to transfer data across a wireless link, it is very
important to remember that interference is inevitable. The protocol must
–10 –
If the designer needs to develop protocols using a physical implementation
other than an RS-232 or USB interface, the designer can build the custom
interface circuitry in the prototyping area and route the module’s data
signals from the header to the prototyping area.
The development system is supplied with Windows-based software that
facilitates communication with the development boards through the Host
Interface Module. This software allows for testing and illustrates basic
implementation of the modules as a wireless serial link. The user selects
either a USB or RS-232 connection and whether the connected board is
the transmitter or receiver. The user can then send text, ASCII characters,
and even a picture. Documentation for the software may be found by going
to the ‘Help’ menu then ‘Help File’.
Terminal emulation programs, such as HyperTerminal, do not provide
error correction; therefore, bit errors or data line hashing are displayed as
random characters. Some form of error detection should be employed
when developing a protocol for wireless environments (please see
Application Note AN-00160).
About Antennas
The choice of antennas is one of the most critical and often overlooked
design considerations. The range, performance, and legality of an RF link
are critically dependent upon the type of antenna employed. Linx offers
a variety of antenna styles that can be considered for a design. Included
with the kit is a Linx CW Series connectorized whip antenna that should
be connected prior to using the kit. Despite the fact that the antenna is
not centered on the board’s ground plane, it exhibits a VSWR of <1.7 and
suitably demonstrates the module’s best practical performance.
– 11 –
Using the Boards as a Design Reference
USB Host Interface Board Schematic
USB HOST INTERFACE BOARD
The master development boards included in this kit are very simple, yet
they illustrate some important techniques that should be incorporated
into the board layout. The module’s mounting pads extend slightly past
the edge of the part. This eases hand assembly and allows for better
heat conduction under the part if rework is necessary. A full ground plane
fill is placed on the bottom of the board. This ground plane serves three
important purposes:
J2
USB-B
4
3
2
1
GSHD
GSHD
GND
DAT+
DAT 5V
GND
U1
1
2
3
GND
6
5
4
5
GND GND
6
USB-B
GSHD
GSHD
GND
DAT+
DAT 5V
DCD
GND
DSR
1
2
3
4
5
6
7
8
GND
15
14
13
DATA_IN
RX DATA
12
DATA_OUT
SUSP_IND
J1
16
TX DATA
HIB-DIPMODULE
GND
NC
NC
NC
VCC
NC
NC
GND
GND
NC
NC
RX DATA
TX DATA
RTS/TRSEL
DTR/PDN
GND
USB
HOST
INTERFACE
BOARD
11
TRSEL
RX_IND
RTS
8
4
3
2
1
RI
USBDM
VCC
7
J2
SDM-USB-QS-S
USBDP
GND
CTS
485_TX
DTR
SDM-USB-QS-S
9
U1
1
USBDP
2
GND
10
TX_IND
RI
PDN
J1
16
1
2
3
4
5
6
7
8
GND
15
DATA_OUT
RX_IND
6
5
7
+ C2
TX_IND
8
RTS
4.7uF
CTS
13
RX DATA
12
TX DATA
11
TRSEL
GND
10
9
J2
U1
RS232 Host
Interface Board Schematic
C3
+
1
2
3
VCC 4
5
6
C1
7
3.3uF
8
3.3uF
C4
485_TX
DTR
PDN
+
3.3uF
16
3.3uF
3.3uF
+
+
GND
C4
3.3uF
3.3uF
C1+
V+
C1C2+
C2VT2OUT
R2IN
VCC
GND
T1OUT
R1IN
R1OUT
T1IN
T2IN
R2OUT
TR SEL
VCC
TX RS232
+ C2
RX RS232
PDN
GND
16
4.7uF
15
14
13
12
11
10
9
VCC
1
2
3
4
5
6
7
8
GND
J2
GND
1
6
2
7
3
8
4
9
5
GND
TR SEL
TX RS232
RX RS232
PDN
16
15
14
13
12
11
10
9
GND
NC
NC
RX DATA
TX DATA
RTS/TRSEL
DTR/PDN
GND
GND
RX DATA
TX DATA
TRSEL
PDN
GND
GND
NC
NC
NC
VCC
NC
NC
GND
GND
NC
NC
RX DATA
TX DATA
RTS/TRSEL
DTR/PDN
GND
16
15
14
13
12
11
10
9
GND
RX RS232
TX RS232
TR SEL
PDN
GND
HIB-DIPMODULE
J1
RS-232
GND
VCC
GND
1
2
3
4
5
6
7
8
GND
NC
NC
NC
VCC
NC
NC
GND
GND
NC
NC
RX DATA
TX DATA
RTS/TRSEL
DTR/PDN
GND
16
15
14
13
12
11
10
9
GND
RX RS232
TX RS232
TR SEL
PDN
GND
HIB-DIPMODULE
GND
GND
+
C5
14
13
12
11
10
9
T1OUT
R1IN
R1OUT
T1IN
T2IN
R2OUT
MAX232
1
2
3
4
5
6
7
8
GND
GND
VCC
RS232
HOST
INTERFACE BOARD
15
GND
C1+
V+
C1C2+
C2VT2OUT
R2IN
U1
+
1
6
2
7
3
8
4
9
5
RX DATA
TX DATA
TRSEL
PDN
GND
J1
RS-232
MAX232
C5C3
Third, a ground plane allows for the implementation of a microstrip feed
between the module and the antenna. The term microstrip refers to a PCB
trace running over a ground plane that is designed to serve as a 50-ohm
transmission line. See the ES Series data guide or the calculator available
on our website for details on microstrip calculations.
DATA_IN
VCC
SUSP_IND
6
C1
3.3uF
VCC
5
+
Second, a ground plane will suppress the transfer of noise between stages
of a product, as well as unintentional radiation of noise into free space.
VCC
GND GND
+
First, since a quarter-wave antenna is employed, the ground plane is
critical to serve as a counterpoise (please see Application Note AN-00500
“Antennas: Design, Application, and Performance” for details on how a
ground plane affects antenna function).
4
DCD
GND
HIB-DIPMODULE
GND
NC
NC
NC
VCC
NC
NC
GND
3 BoardHOST
Figure 10: USB Host Interface
Schematic DSR
RS232
INTERFACE
BOARD
14
GND
GND
USBDM
16
15
14
13
12
11
10
9
GND
In Closing
Figure 11: RS232 Host Interface Board Schematic
Legal Notice: All Linx kits and modules are designed in keeping with
high engineering standards; however, it is the responsibility of the user to
ensure that the products are operated in a legal and appropriate manner.
The purchaser understands that legal operation may require additional
permits, approvals, or certifications prior to use, depending on the
country of operation.
RF Section Schematic
RF SECTION
RX = NS
GND
R29
GND
22K
2
VCC
R14
3
220 ohm
GND
4
TX DATA
5
TX = NS
U3
U2
1
TX PDN
PDN
ANT
LADJ
GND
VCC
LO_V_D
GND
/CLK SEL
DATA
/CLK
1
10
9
8
7
6
2
GND
GND
3
LO V DET
/CLK SEL
GND
/CLK
VCC
4
5
6
TXM-XXX-ES
7
8
ANT
GND
NC
NC
NC
PDN
GND
RSSI
VCC
DATA
NC
AUDIO
NC
A REF
NC
NC
16
15
14
13
12
11
10
RX PDN
RSSI
RX DATA
AUDIO
AUDIO REF
9
RXM-XXX-ES
Figure 12: RF Section Schematic
RX = NS
–12 –
GND
1
RF
ANT1
CONREVSMA001
2-5
Here at Linx, “Wireless Made Simple” is more than just our motto, it is our
commitment. A commitment to the highest caliber of product, service,
and support. That is why, should you have questions or encounter any
difficulties using the evaluation kit, you’ll be glad to know many resources
are available to assist you. First, check carefully for the obvious, then
visit our website at www.linxtechnologies.com or call +1 541 471 6256
between 8AM and 4PM Pacific Time to speak with an application engineer.
LO V DET
/CLK SEL
/CLK
TX ENC
GND
HEADER SECTION
TS1
1
2
3
4
5
6
GND
TS2
1
RX PDN
RX DEC
RX DATA
RSSI
–23 13 –
4
5
J3
GND
1
2
3
GND
NC
NC
GND
NC
NC
16
15
14
GND
R29
RX =22K
NS VCC
/CLK
ENCODER/DECODER SECTION
AUDIO REF
RX PDN
RSSI
Encoder/Decoder Section Schematic
5
12 TX = NS
DATA
RX DATA
U3 VCC
1 6
16 11
SECTION
ANTNC
NC
AUDIO
AUDIO
2 7 ANT1
15 10
GND
NC
CONREVSMA001
NC
A REF
AUDIO REF
VCC
RF
HEADER SECTION
TX PDN
GND
5
6
/CLK
U2 DATA
1
10
TXM-XXX-ES
PDN
ANT
13
2
LADJ
R14 TS1
GND
3
9
GND
GND
GND
RF
1
2-5
LO_V_D
1
2
8
ENCODER/DECODER SECTION
3 8
GND
GND14
LO V DET
NC NC
PDN NC 9RX PDN
7 GND TS2
4
13
RXM-XXX-ES
/CLK SEL
/CLK SEL
GND
GND
RSSI
RSSI
TX = NS
U2
U3
1
J3
LO V DET
35
61
5
10
1 12 RX
16
RX
PDN
2
TX
DATA
DATA
/CLK
/CLK
VCC
VCC
DATA
1
TX PDN
PDN
ANTGND
ANT 16 DATA
NC
/CLK SEL
4
GND
GND
GND
RX DEC
3
26
R29
/CLK
5 TXM-XXX-ES
11 15
NC
9
2 NC
15
RX DATA 2 LADJ 4
GND 6
GND
GND
GND AUDIO GND AUDIO
NC
3 NC
14
TX ENC
VCC
NC
NC
22K
RSSI
5
47
R14
10 13 RX RS23214SQ
TX DATA
7
3
8
3
NC
DATA
NC
ARX
REF
REF
VCC
LO_V_D
LO V5DET
NC AUDIO
PDN
RX PDN
RX =
NS
AUDIO
6
12
TX RS232 GND TS1
8
220 ohm
VCC
TX DATA
VCC
TX RS232
AUDIO REF4
7
7
4 9
13
68
11
PDN RS232
9
GND
GND
/CLK SEL
/CLK SELNC
GNDRTS/TRSEL
RSSI
RSSI
NC GND
VCC
220 ohm 1
4
GNDRX = 2
NS GND
HEADER SECTION
1
2
1
2
1
8
7
10
GND TS2
TX PDN
10
NC
DTR/PDN
PDN RS232
5
6
5
12
2
RXDATA
RS232 SQ
TX
DATA 9
/CLKGND /CLK8 RXM-XXX-ES
VCC
VCC 9
DATA
RX DATA
PDN ENC
11
GND
GND
1
J3GND
LO V DET
3
CON9
TXM-XXX-ES
6
11
RX PDN
2
1 HOST MODULE
CON11
/CLK SEL
4
NC 16
AUDIO
AUDIO
GND
GND
GND
GND
TXRX
= NS
DEC
3
2
15
/CLK
5
NC
7 NC
10
HEADER
DATA
4 SECTION
3
NC 14
A REF
AUDIO REF
TX ENC
6Proto Signal RX
NC
NC
Header
Host Interface Header
RSSI
5
13
4
TX DATA
7
9 SQ
NC
RX 8DATA
NC 12 RX RS232
NC
AUDIO
6
5
RX = NS
TX RS232
8
VCC
VCC
TX DATA
TX RS232
GND TS1
SQUELCH
CIRCUIT
7
6
11
RXM-XXX-ES
RS232Section9 SchematicAUDIO REF
NC
RTS/TRSEL
Figure 13:PDN
Header
8
7
10
1 10
TX PDN
GND TS2
NC
DTR/PDN
PDN RS232
VCC
VCC
VCC
RX
RS232
SQ
9
8
9
2 11
TX = NS
PDN ENC
GND
GND
GND
GND
1
J3
LO V DET
3
CON9
SECTION
R22 HEADER
CON11
RX
PDN
2
1
16
HOST
MODULE
/CLK SEL
4
GND
GND
GND
GND
TX
= NS
R21
R23
RX
RS232
SQ
RX DEC
3
2
15
/CLK
5
NC
NC
39K
10K
RX = NS
RX
DATA
4 390K
3
14
R24 Header
Proto Signal
Header
TX ENC
6
GND
TS1
NCHost Interface
NC
R17
U6
RSSI
5
13
4
TX DATA
7
RX DATA
RX RS232 SQ
1
8GND TS2NC
1
2M
AUDIO
6
5
12
OUTA VCC
TX RS232
8
SQUELCH
CIRCUIT
VCC
VCC
TX DATA
TX RS232
5K
2
7
2
AUDIO
REF
7
6
11
INAOUTB
R27
R19
R25
PDN RS232
9
1 NC
J3
RTS/TRSEL
3
6
LO V DET
3
8 RX PDN
7 2
10
INA+
INBAUDIO REF16
TX PDN RSSI
10 /CLK SEL
1
NC
DTR/PDN
PDN RS232
4
5
4
VCC
VCC
VCC
GND 10K
GND0
GND
GND
39K
TX
= NS
SQ
9 RX DEC
8 3
GND
INB+
R18 ENC
2 GND 9
PDN
11 /CLKR20 RX RS232
GND
GND
GND NC 15
C2 5
NC
10K
2M
RX
DATA
4
3
14
R28
R26
R22
TX
ENC
6
CON9
0.01uF
LMV393
NC
NC
CON11
HOST
MODULE
AUDIO
RSSI
5
4
13
R23
RX RS232 SQRX DATA
TX DATA
7
TX =R21
NS
RX RS232 SQ
10K 5 NC 0
AUDIO
6 10K
12
390K
TX RS232 39K
8
VCC R24
VCC
TX DATA
TX RS232
GND R17
GND
GND
AUDIO REF
7Host Interface
6
11
Proto
Signal
Header
Header
PDN
RS232
9GND U6
NC
RTS/TRSEL
8
10
TX PDN
10 1 OUTA VCC 8
2M 7 NC
DTR/PDN
PDN RS232
RX
RS232
SQ
9
8
9
5K
7
PDN ENC SQUELCH
11 2
CIRCUIT
GND R25
GND
GND
GND
INA- OUTB
R27
R19
3
6
CON9
RSSI
INBAUDIO REF
CON11 INA+
HOST
MODULE
4
5
TX = NS
0
39K
10K
VCC
VCC
VCC
GND
INB+
R18
R20 POWER
SUPPLY SECTION
TX = NS
C2
10K
2M
R28
R26
Proto Signal
Host
Interface Header
0.01uF
LMV393
R22Header
J1
U1
AUDIO
R21
R23
RX
RS232
SQ
0
10K
VCC
LM7805 5V REGULATOR
SW1
CIRCUIT
390K SQUELCH
10K
GND
1
GND 39K
GND
GND
R243
Vin
Vout
U6
R17
POWER
SWITCH
PWRJACK
VCC
8
1
TX = NS
2MVCC VCC
OUTA VCC
7
5K
2
INA- OUTB
R22
R27 + C1
R25
D11
Figure 14:RSSI
Squelch R19
Circuit Schematic
3
6
INA+B1R21
INBAUDIORX
REF
R23
RS232 SQ
220uF
DIODE400
4
5
0
39K
10K
POWER
SUPPLY
SECTION
BATTERY
GND9V
INB+
39K
390K
10K
R18
R20
C2
R24
U6
R17
10K
2M
R28
R26
LMV393
0.01uF
J1
U1 GND 8
1
GND 2M
AUDIO
VCC
OUTA
LM7805
5V REGULATOR
2
7
5K
0VCC
GND GND SW1
INA- OUTB 10K3
R27
R19
R25
3 1 Vin
6
GND
GND
GND
GND
Vout
INBRSSI
INA+
AUDIO REF
4
5
SWITCH
0
39K
10K
PWRJACK
GND
INB+
R18
R20POWER
C2
10K
2M
R28
R26
LMV393
0.01uF
+
C1
D11
AUDIO
B1
0
10K
220uF
DIODE400
9V
BATTERY
GND
POWER
GNDSUPPLY
GND
GND SECTION
D11
DIODE400
SW1
B1
9V BATTERY
PWRJACK
GND
POWER SWITCH
GND
D11
GND
DIODE400
Figure 15: Power Supply Section Schematic
B1
9V BATTERY
1
U1
+
LM7805 5V C1
REGULATOR VCC
220uF3
Vin
Vout
GND
GND
GND
GND
100k
SUPPLY SECTION
J1
+ C1
220uF
GND
R6
POWER
POWER
SWITCH
PWRJACK
1
GND
GND
U1
LM7805 5V REGULATOR VCC
3
Vin
Vout
GND
1
2
GND
SW1
GND
GND
2
J1
U4
2
R6
GND
100k
U4
1
GNDD6
2
R6
GND
100k
1
D5
U4
20
R7
100k
Squelch Circuit Schematic
Power Supply Section Schematic
GND
R7 100k
R7 100k
20
100k D5 20
J2
D5 GND
GND
GND
RELAY OUT
R8
R5
100k
100k
R5
R8 100k
100k
J2
2
VCC
2
19
J2
R9 100k D4 19
SW2
GND
3
D7 18
D4 GND VCC
GND
GNDD7
RELAY OUT
SEL_BAUD0
D3
GND
RELAY OUT
VCC
RX
=
NS
VCC
R9
100k
R9
SW2
100k
U4
VCC
18
3 SW2
GND
VCC
3
18
R10
100k
SEL_BAUD0 20
D3
4
17
D3 GND
GND
R6 100k
R7 SEL_BAUD0
100k
SEL_BAUD0
1
RX
=
NS
D2
SEL_BAUD1
GND
RX
=
NS
GND
GND
D6
D5
GND
GND
R10 100k S1
R10 100k
17
4
4R8
17
SEL_BAUD0
SEL_BAUD0
SW3
SEL_BAUD1 19
D2
GND
R5 100k
5
16
D2
SEL_BAUD1
GND
100k
2GND
RELAY J2
GND
VCC
VCC
VCC
GND
GND
D7
D4
S1
S1
RELAY OUT
SW3
SW35
16
5
16
SEND
VCC
RELAY
R9 GND
RELAY
GND
VCC
VCC
VCC
GND
100k
SW2
6
15
VCC
VCC
GND 18
VCC
3
VCC
VCC
GND
GND
VCC
GND
SEL_BAUD0GND
D3
D1
SEND
RX
=
NS
SEND
SEL_BAUD1
6
15
RE1
6R10 100k
15
GND
0805_DIODE
GND
VCC
VCC
GND
GND
VCC
7
4
GND 14
VCC
GND
GND 17
VCC
SEL_BAUD0
D1
D1
GND
SEL_BAUD1
RX = NS
D_LATCH/E_GND
D1
LATCH
SEL_BAUD1
SEL_BAUD1 D2
RE1
RE1
0805_DIODE
S1
0805_DIODE
C4
14
7
7
14
SW3
D_LATCH/E_GND
D1
RX = NS
5 LATCH 8
16
GND
13
D_LATCH/E_GND
D1
LATCH
R1
RELAY
VCC
VCC
GND
VCC
10uF
D_RX_CNTL/E_TX_CNTL
D0
R3 GND
C4
C4
RELAY-SPDT
100k
SEND 13
GND
8
GND
GND
8
13
R1
10uF R1
6
15
D_RX_CNTL/E_TX_CNTL
D0
10uF
9
12
D_RX_CNTL/E_TX_CNTL
D0
R3
GND
VCC
VCC
100k GND
D_TX_ID/E_DATA_OUT
D_DATA_IN/E_SEND
TX GND
ENCR3
RELAY-SPDT
S0
D1
100k
RELAY-SPDT
100k
GND
SEL_BAUD1
S3
VCC
GND
RE1
9
12
9
12
0805_DIODE
BUZZER
100k
VCC
7
14
100k
D_TX_ID/E_DATA_OUT
D_DATA_IN/E_SEND
TX ENC
S0
10
11
D_TX_ID/E_DATA_OUT
D_DATA_IN/E_SEND
TX
LATCH
D_LATCH/E_GND
D1ENC
S3
VCC
PDN ENC
MODE_IND
D_LEARN/E_CREATE
S3
VCCRX = NS TX = NS
BUZZ
C4 GND GND
CREATE/LEARN 11
10
11
GND
8
13 10
R1
MODE_IND
D_LEARN/E_CREATE
PDN
ENC
TX
=
NS
10uF
LICAL-ENC/DEC-MS
PDN
ENC
MODE_IND
D_LEARN/E_CREATE
TX
= NS
D_RX_CNTL/E_TX_CNTL
D0
R3
GND GND
GND GND
TX = ENC
RELAY-SPDT
R4 100k
CREATE/LEARN
100k
CREATE/LEARN
D0
GND
R12
LICAL-ENC/DEC-MS
GND
9
12
LICAL-ENC/DEC-MS
100k
RX
DEC
TX
=
ENC
TX ENC
D_TX_ID/E_DATA_OUT
D_DATA_IN/E_SEND
0805_DIODE
RX
=
DEC
TX
=
ENC
S0
R4D2 100k
R4 100k
R0
D0
S3
VCC 100k
R12
R12
GND
BUZZER
R2GND
RX DEC
RX DEC SEND
100k
0805_DIODE
10
11 D2 RX = DEC
D2
RX = DEC 100k
100kTX = NS
GND
SEND
PDN ENC
MODE_IND
D_LEARN/E_CREATE
GND GND
R2
R2
200
CREATE/LEARN
MODE_IND
SEND
SEND
GND
LICAL-ENC/DEC-MS
GND
SEND
R13
TX = ENC
R4 100k
200GND
GND
MODE_IND 200
D0
MODE_IND
RX = NS
R12
GND
GND
R13
R13
RX DEC
100k
0805_DIODE
RX = DEC
D2
GND
GND
100k
R0
GND
GND
RX = NS
RX = NS
R2
100k
100k
SEND
100k
TX = NS
GND
SEND
U5
MODE_IND 200
R15
1
14
R13
U5
A
VCC
U5
GND
GND
R15
RX = NS
R15 14
100k
1
GND1 A
100k
VCC
2
13
A
VCC
A`
F
100k
100k
TX = NS
2
13
2
U5 R16
A`
F
12
3
A`
F
B
F`
R15
1
14
R16
R16 12
A 10k
VCC
3
3
B
F`
4
11
F`
B
100k
E10k
B`
2
13
10k
A`C3
F
4
11
4
E
B`
5
10
B`
E
R16
C3
E`
C
C3
3
12
BZ110
B
F`
5
5
10k
0.01uF
E`
C
6
9
E`
C
C`
D
11
4
B`
E
0.01uF
6
0.01uF 9
C3
6
C`
D
7
8
D
C`
5
10
GND
D`
GND
C
E`
BUZZER
BZ1
7
8
7
GND
D`
GND
GND
GND D`
0.01uF
6
9 CD4069UB HEX INVERTER
C`
D
CD4069UB HEX INVERTER
CD4069UB HE
8
7
GND
GND D`
BUZZER
CD4069UB HEX INVERTER
TX DATA
14
9
AUDIO
19
RX = NS
PDN
NC
RSSI
15
10
D6
D4
Header Section Schematic
ANT1
CONREVSMA001
3
LO V DET
8 NC
NC
GND
GND
4
/CLK SEL
GND
GND
RXM-XXX-ES
16
11
GND
7
NC
A REF
R8
/CLK SEL
NC
AUDIO
GND
NC
D6
LO_V_D
GND
ANT
NC
GND
2
D7
VCC
8
2
7
100k
4
1
6
GND
R5
220 ohm
GND
GND
GND
3
GND
2-5
R14
10
RF9 SECTION
LADJ
RF
VCC
PDN
ANT
TXM-XXX-ES
1
22K
2
1
2
1
TX PDN
R29
GND
Figure 16: Encoder/Decoder Section Schematic
–14 –
– 15 –
Linx Technologies
159 Ort Lane
Merlin, OR, US 97532
Phone: +1 541 471 6256
Fax: +1 541 471 6251
www.linxtechnologies.com
Disclaimer
Linx Technologies is continually striving to improve the quality and function of its products. For this reason, we
reserve the right to make changes to our products without notice. The information contained in this Data Guide
is believed to be accurate as of the time of publication. Specifications are based on representative lot samples.
Values may vary from lot-to-lot and are not guaranteed. “Typical” parameters can and do vary over lots and
application. Linx Technologies makes no guarantee, warranty, or representation regarding the suitability of any
product for use in any specific application. It is the customer’s responsibility to verify the suitability of the part for
the intended application. NO LINX PRODUCT IS INTENDED FOR USE IN ANY APPLICATION WHERE THE SAFETY
OF LIFE OR PROPERTY IS AT RISK.
Linx Technologies DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. IN NO EVENT SHALL LINX TECHNOLOGIES BE LIABLE FOR ANY OF CUSTOMER’S INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING IN ANY WAY FROM ANY DEFECTIVE OR NON-CONFORMING PRODUCTS
OR FOR ANY OTHER BREACH OF CONTRACT BY LINX TECHNOLOGIES. The limitations on Linx Technologies’
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limitation, breach of contract, breach of warranty, strict liability, or negligence. Customer assumes all liability
(including, without limitation, liability for injury to person or property, economic loss, or business interruption) for
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distributors, and representatives from and against all claims, damages, actions, suits, proceedings, demands,
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Products sold by Linx Technologies to Customer. Under no conditions will Linx Technologies be responsible for
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patented, or copyrighted techniques, components, or materials. Under no circumstances shall any user be
conveyed any license or right to the use or ownership of such items.
©2015 Linx Technologies. All rights reserved.
The stylized Linx logo, Wireless Made Simple, WiSE, CipherLinx and the stylized CL logo are trademarks of Linx Technologies.
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