DA-681 Series Embedded Computer User'

DA-681 Series Embedded Computer User’s
Manual
Sixth Edition, July 2011
www.moxa.com/product
© 2011 Moxa Inc. All rights reserved.
DA-681 Series Embedded Computer User’s
Manual
The software described in this manual is furnished under a license agreement and may be used only in accordance with
the terms of that agreement.
Copyright Notice
© 2011 Moxa Inc. All rights reserved.
Trademarks
The MOXA logo is a registered trademark of Moxa Inc.
All other trademarks or registered marks in this manual belong to their respective manufacturers.
Disclaimer
Information in this document is subject to change without notice and does not represent a commitment on the part of
Moxa.
Moxa provides this document as is, without warranty of any kind, either expressed or implied, including, but not limited
to, its particular purpose. Moxa reserves the right to make improvements and/or changes to this manual, or to the
products and/or the programs described in this manual, at any time.
Information provided in this manual is intended to be accurate and reliable. However, Moxa assumes no responsibility for
its use, or for any infringements on the rights of third parties that may result from its use.
This product might include unintentional technical or typographical errors. Changes are periodically made to the
information herein to correct such errors, and these changes are incorporated into new editions of the publication.
Technical Support Contact Information
www.moxa.com/support
Moxa Americas
Moxa China (Shanghai office)
Toll-free: 1-888-669-2872
Toll-free: 800-820-5036
Tel:
+1-714-528-6777
Tel:
+86-21-5258-9955
Fax:
+1-714-528-6778
Fax:
+86-21-5258-5505
Moxa Europe
Moxa Asia-Pacific
Tel:
+49-89-3 70 03 99-0
Tel:
+886-2-8919-1230
Fax:
+49-89-3 70 03 99-99
Fax:
+886-2-8919-1231
Table of Contents
1.
Introduction ...................................................................................................................................... 1-1
Overview ........................................................................................................................................... 1-2
Model Descriptions and Package Checklist .............................................................................................. 1-2
Appearance........................................................................................................................................ 1-3
Dimensions ........................................................................................................................................ 1-4
Features ............................................................................................................................................ 1-4
Hardware Block Diagram ..................................................................................................................... 1-5
DA-681 Basic System .................................................................................................................. 1-5
Hardware Specifications ...................................................................................................................... 1-5
Non-standard Baudrates ...................................................................................................................... 1-7
2.
Hardware Installation ....................................................................................................................... 2-1
Placement Options .............................................................................................................................. 2-2
Desktop ..................................................................................................................................... 2-2
Rack mounting ............................................................................................................................ 2-2
Wiring Requirements ........................................................................................................................... 2-4
Connecting the Power ......................................................................................................................... 2-4
Wiring the Power Inputs ...................................................................................................................... 2-5
Power Input Wiring Description ............................................................................................................ 2-8
HIPOT (Dielectric Strength) Testing ...................................................................................................... 2-9
Reset Button .................................................................................................................................... 2-10
Front Panel LED ................................................................................................................................ 2-10
Connecting to a Display ..................................................................................................................... 2-11
Connecting a PS/2 Keyboard and Mouse .............................................................................................. 2-11
Connecting USB Devices .................................................................................................................... 2-12
LAN Ports ........................................................................................................................................ 2-12
Upgrading the Memory Module ........................................................................................................... 2-13
Installing a CompactFlash Card .......................................................................................................... 2-15
Installing a SATA Hard Disk ............................................................................................................... 2-16
3.
BIOS Setup........................................................................................................................................ 3-1
Entering the BIOS Setup Utility ............................................................................................................ 3-2
Modifying the BIOS Main Settings ......................................................................................................... 3-2
Basic Configuration ...................................................................................................................... 3-2
System Security .......................................................................................................................... 3-3
Advanced Settings .............................................................................................................................. 3-4
Hard Disk Boot Priority ................................................................................................................. 3-4
Advanced BIOS Features .............................................................................................................. 3-5
CPU Features .............................................................................................................................. 3-5
Advanced Chipset Settings ........................................................................................................... 3-7
PnP/PCI Configurations ................................................................................................................ 3-8
Frequency/Voltage Control ........................................................................................................... 3-9
Peripherals......................................................................................................................................... 3-9
OnChip IDE Device .................................................................................................................... 3-10
Onboard Device ........................................................................................................................ 3-11
Onboard I/O Chip Setup ............................................................................................................. 3-12
Power.............................................................................................................................................. 3-13
Wake Up Control ....................................................................................................................... 3-13
Hardware Monitor ............................................................................................................................. 3-14
Load Defaults ................................................................................................................................... 3-15
Exiting the BIOS Setup ...................................................................................................................... 3-16
Upgrading the BIOS .......................................................................................................................... 3-17
A.
Safety Installation Instructions ........................................................................................................ A-1
B.
Regulatory Statement Approval ........................................................................................................ B-1
1
1.
Introduction
Thank you for purchasing the Moxa DA-681 series x86-based industrial ready-to-run embedded computer.
This manual introduces the hardware installation, connector interfaces and BIOS setup of the DA-681. For
software configuration and management, please refer to the user’s manual for your operating system.
The following topics are covered in this chapter:
 Overview
 Model Descriptions and Package Checklist
 Appearance
 Dimensions
 Features
 Hardware Block Diagram
 DA-681 Basic System
 Hardware Specifications
 Non-standard Baudrates
DA-681 Series Embedded Computer
Introduction
Overview
The DA-681 computer is based on the Intel x86 processor and supports VGA, 6 Ethernet ports, 4 RS-232 and
8 RS-485 serial ports with isolation, CompactFlash, and USB. The DA-681 comes in a standard 19-inch, 1U high
form factor, making it an ideal platform for industrial applications.
With its robust design, the DA-681 is suitable for industrial automation applications that require standard
19-inch rackmount solutions, such as power automation, transportation, and oil and gas. Another plus is that
the serial ports come with 2 KV digital galvanic isolation protection to guarantee communication reliability in
harsh industrial environments.
Moreover, the DPP-T models are in full compliance with IEC 61850-3 standards to meet the demands of power
substation automation.
The DA-681 runs Linux, WinCE 6.0, or Windows XP Embedded (pre-installed), providing a friendly environment
for developing sophisticated application software. The great software support that Moxa provides makes the
programmer’s job easier, and helps programmers develop bug-free code quickly and at a lower cost.
Model Descriptions and Package Checklist
The DA-681 Series includes the following models:
DA-681-I-SP-CE:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4 RS-232, 8 RS-485, CompactFlash, SATA, USB,
Single Power, WinCE 6.0
DA-681-I-SP-XPE:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4 RS-232, 8 RS-485, CompactFlash, SATA, USB,
Single Power, WinXPe SP2
DA-681-I-SP-LX:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4 RS-232, 8 RS-485, CompactFlash, SATA, USB,
Single Power, Linux 2.6
DA-681-I-DP-CE:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4 RS-232, 8 RS-485, CompactFlash, SATA, USB,
Dual Power, WinCE 6.0
DA-681-I-DP-XPE:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4 RS-232, 8 RS-485, CompactFlash, SATA, USB,
Dual Power, WinXPe SP2
DA-681-I-DP-LX:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4 RS-232, 8 RS-485, CompactFlash, SATA, USB,
Dual Power, Linux 2.6
DA-681-I-DPP-T-CE:
IEC 61850-3 certified x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4 RS-232, 8 RS-485,
CompactFlash, SATA, USB, Dual Power, WinCE 6.0
DA-681-I-DPP-T-XPE:
IEC 61850-3 certified x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4 RS-232, 8 RS-485,
CompactFlash, SATA, USB, Dual Power, WinXPe SP2
DA-681-I-DPP-T-LX:
IEC 61850-3 certified x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4 RS-232, 8 RS-485,
CompactFlash, SATA, USB, Dual Power, Linux 2.6
1-2
DA-681 Series Embedded Computer
Introduction
Each model is shipped with following standard items:
•
1 DA-681 Embedded Computer
•
Quick Installation Guide
•
Documentation & Software CD
•
Ethernet Cable: RJ45 to RJ45 cross-over cable, 100 cm
•
Product Warranty Statement
Appearance
Front View
Rear View
1-3
DA-681 Series Embedded Computer
Introduction
Dimensions
Features
The DA-681 Basic System has the following features:
•
IEC 61850-3 certified for power substation automation systems (DPP-T models only)
•
Intel Celeron M 1 GHz processor with 400 MHz FSB
•
1 x 200-pin DDR2 SODIMM socket, supporting DDR2 400 up to 1GB (512 Mb built-in)
•
Six 10/100 Mbps Ethernet ports
•
1 CompactFlash socket, 1 IDE and serial ATA-150 connectors for storage expansion
•
USB 2.0 ports for high speed peripherals
•
4 isolated RS-232 and 8 isolated RS-485 ports
•
Serial port speed from 50 to 921.6 Kbps, supporting nonstandard baudrates
•
Specific design for heat dissipation
•
Embedded Linux, WinCE 6.0, or WinXPe platform
•
19-inch Rackmount model, 1U high
•
Wide temperature models available (DPP-T models only)
•
100-240 VAC/VDC power input (Dual Power models offer power redundancy function)
•
Fan-less design
ATTENTION
Refer to the “Non-standard Baudrates” section for instructions on how to calculate which baudrates are
supported.
1-4
DA-681 Series Embedded Computer
Introduction
Hardware Block Diagram
DA-681 Basic System
Hardware Specifications
Computer
CPU: Intel Celeron M 1 GHz processor
OS (pre-installed): WinCE 6.0, Windows XP Embedded SP3, Linux 2.6
System Chipset: Intel 910GMLE + ICH6M chipset
BIOS: 4 mega-bit Flash BIOS, PCI Plug & Play, ACPI function support
FSB: 400 MHz
System Memory: 1 x 200-pin DDR2 SODIMM socket supporting DDR2 400; up to 1 GB max. (512 MB built-in)
Expansion Bus: PCI/104 onboard
USB: USB 2.0 compliant hosts x 2, Type A connector, supports system boot up
Storage
Built-in: 1 GB (2 GB for DA-681-XPE) industrial DOM onboard to store OS via IDE interface
Storage Expansion: CompactFlash socket
HDD Support: SATA connector for HDD expansion
Other Peripherals
KB/MS: 1 PS/2 interface, supports standard PS/2 keyboard and PS/2 mouse
Display
Graphics Controller: Integrated graphics with built-in Intel 910GME, and built-in Intel extreme Graphics 2
technology
Display Memory: Dynamic video memory (shares up to 32 MB of system memory)
Display Interface: CRT Interface for VGA output (DB15 female connector)
Resolution: CRT display mode with pixel resolution up to 2048 x 1536 at 75 Hz
Ethernet Interface
LAN: 6 auto-sensing 10/100 Mbps ports (RJ45)
1-5
DA-681 Series Embedded Computer
Introduction
Magnetic Isolation Protection: 1.5 KV built-in
Serial Interface
Serial Standards:
• 4 RS-232 ports (DB9 male)
• 8 RS-485 ports (terminal block)
ESD Protection: 15 KV for all signals
Isolation: 2 KV digital galvanic isolation
Serial Communication Parameters
Data Bits: 5, 6, 7, 8
Stop Bits: 1, 1.5, 2
Parity: None, Even, Odd, Space, Mark
Flow Control: RTS/CTS, XON/XOFF, ADDC® (automatic data direction control) for RS-485
Baudrate: 50 bps to 921.6 Kbps (supports non-standard baudrates; see user's manual for details)
Serial Signals
RS-232: TxD, RxD, DTR, DSR, RTS, CTS, DCD, GND
RS-485-2w: Data+, Data-, GND
LEDs
System: Power x 1, Storage x 1
LAN: 10M x 6, 100M x 6
Serial:
RS-232: 4 x Tx, 4 x Rx
RS-485: 8 x Tx, 8 x Rx
Power Failure: LED x 2 (dual power models)
Physical Characteristics
Housing: SECC sheet metal (1 mm)
Weight: 4.5 kg
Dimensions: 440 x 315 x 45 mm (17.32 x 12.40 x 1.77 in), 19 inch 1U height
Mounting: Standard 19-inch rackmount
Environmental Limits
Operating Temperature:
SP and DP models: -10 to 60°C (14 to 140°F)
DPP-T models: -40 to 75°C (-40 to 167°F)
Storage Temperature:
SP and DP models: -20 to 80°C (4 to 176°F)
DPP-T models: -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity: 5 to 95% (non-condensing)
Anti-vibration: 7 mm (2-9 Hz), 20 m/s/s (9-200 Hz), 15 m/s/s (200-500 Hz) @ IEC-61850-3, IEC
60870-2-2/Cm/(3M6)/(4M6), sine wave, 2-500 Hz, 1 Oct/min, 10 cycles, 2 hrs 40 mins per axis
Anti-shock: 300 m/s2 @ IEC-61850-3, IEC 60870-2-2/Cm/(3M6)/(4M6), half sine wave, 11 ms
Power Requirements
Input Voltage: Single or dual inputs, 100 to 240 VAC/VDC auto-ranging, 47 to 63 Hz, terminal block
Power Consumption: 26 W
Standards and Certifications
Safety: UL 60950-1, CSA C22.2 No. 60950-1-03, EN 60950-1, CCC (GB4943, GB9254, GB17625.1)
EMC: EN 55022, EN 61000-3-2, EN 61000-3-3, EN 55024, FCC Part 15 Subpart B Class A
Power Automation: IEC 61850-3 (DPP-T models only)
Green Product: RoHS, CRoHS, WEEE
Reliability
Alert Tools: Built-in buzzer and RTC (real-time clock) with battery lithium backup
Automatic Reboot Trigger: Built-in WDT (watchdog timer) supporting 1-255 level time interval system
reset, software programmable
MTBF (mean time between failures): 100,847 hrs
1-6
DA-681 Series Embedded Computer
Introduction
Warranty
Warranty Period: 3 years
Details: See www.moxa.com/warranty
Non-standard Baudrates
Moxa’s UART ASIC, supports most non-standard baudrates in the range 50 bps to 921.6 Kbps. In fact,
supported baudrates are much denser towards the lower values. For example, no baudrates are supported
between the integers 5320 and 5323, but 49 baudrates are supported between the integers 387 and 388. Of
course this is the way it should be, since serial devices that require using non-standard baudrates generally use
slower baudrates.
Before using a serial device that requires using a non-standard baudrate, you must first check that the DA-681
supports a baudrate within the tolerance specified by the serial device manufacturer.
Use the following formula to calculate which baudrates are supported by the DA-283:
(A) Baudrate = 921600/(N+M/8) bps, for N = 1, 2, …, 18431, M = 0, 1, 2, …, 7
or
(B) Baudrate = 8 x 921600/K bps, for K = 8, 9, …, 147456
If you are a programmer and you need to write a driver for your serial device, then you may need to use
formula A. If you have a serial device that requires using a non-standard baudrate, then you can use formula
B to determine if the DA-681 supports a baudrate within the tolerance specified by the serial device
manufacturer.
Example: Your serial device requires using a baudrate of 5340 bps and has a tolerance of 2 bps. Can the
DA-681 be used with this device?
Solution: Set formula B to the desired baudrate and then solve for K.
8 x 912600/K = 5338
==>
K = 1367.703259…
This shows that the supported baudrate closest to 5340 comes from setting K=1367 or K=1368.
K=1368
==>
Baudrate1 = 5336.842105...
K=1367
==>
Baudrate2 = 5340.746159…
Since 5338 – Baudrate1 < 2, we can see that the DA-681 supports the serial device.
Note that we can use formula A to generate the so-called “standard” baudrates, which come from setting M=0,
and setting N equal to certain integers.
Standard Baudrates
Baudrate
N
M
Baudrate
N
M
921600
1
0
4800
192
0
460800
2
0
2400
384
0
230400
4
0
1800
512
0
115200
8
0
1200
768
0
57600
16
0
600
1536
0
38400
24
0
300
3072
0
19200
48
0
150
6144
0
9600
96
0
75
12288
0
7200
128
0
50
18432
0
1-7
DA-681 Series Embedded Computer
Introduction
WARNING
Communication between a serial device and a Moxa UART port may not work correctly if the serial device uses
a baudrate that it not within the correct tolerance of a baudrate calculated from either formula A or formula B.
1-8
2
2.
Hardware Installation
The DA-681 Series of embedded computers are compact and rugged, making them suitable for industrial
applications. The LED indicators allow users to monitor performance and identify trouble spots quickly, and
multiple ports are provided for connecting a variety of different devices. The DA-681 embedded computers
come with a reliable and stable hardware platform that lets you devote the bulk of your time to application
development. This chapter describes hardware installation and connector interfaces of the DA-681 embedded
computers.
The following topics are covered in this chapter:
 Placement Options
 Desktop
 Rack mounting
 Wiring Requirements
 Connecting the Power
 Wiring the Power Inputs
 Power Input Wiring Description
 HIPOT (Dielectric Strength) Testing
 Reset Button
 Front Panel LED
 Connecting to a Display
 Connecting a PS/2 Keyboard and Mouse
 Connecting USB Devices
 LAN Ports
 Upgrading the Memory Module
 Installing a CompactFlash Card
 Installing a SATA Hard Disk
DA-681 Series Embedded Computer
Hardware Installation
Placement Options
Desktop
Place your DA-681 on a clean, flat, well-ventilated desktop. For better ventilation, leave some space between
the DA-681 and other equipment. Do not place equipment or objects on top of the DA-681, as this might
damage the computer’s internal components.
Rack mounting
The DA-681 has rackmount supports for installing the embedded computer on a standard rack.
ATTENTIONS
For maximum safety, at least two persons should work together to lift, place, and attach the embedded
computer to the rack.
Before you lift or move the embedded computer, make sure that the embedded computer is turned off and the
power to the rack system is turned off.
Four rackmount screws are required to attach the DA-681 to a standard rack.
Follow these steps to install the DA-681 on a rack.
Step 1:
Installing the rackmount supports.
Take the rackmount supports out of the packages. There are two rackmount ears and 12 screws. Each ear
requires 6 screws to attach to the rack.
2-2
DA-681 Series Embedded Computer
Step 2:
Hardware Installation
Installing the rackmount ears to the DA-681.
Use 6 screws to attach one rackmount ear to one side of the DA-681. Repeat this procedure for the ear on the
other side of the DA-681.
Step 3:
Installing the DA-681 to a rack.
Gently slide the DA-681 onto the rack, and then use screws provided by the rack supplier to fix the rackmount
support to the rail.
Note that four screws are required to attach the DA-681 to the rack. Use two screws on the left side
and two screws on the right side.
As a final check, make sure that the four screws are firmly attached to the rack.
2-3
DA-681 Series Embedded Computer
Hardware Installation
Wiring Requirements
The following common safety precautions should be observed before installing any electronic device:
•
Use separate paths to route wiring for power and devices. If power wiring and device wiring paths must
cross, make sure the wires are perpendicular at the intersection point.
•
You can use the type of signal transmitted through a wire to determine which wires should be kept separate.
The rule of thumb is that wiring that shares similar electrical characteristics can be bundled together.
•
Keep input wiring and output wiring separate.
•
When necessary, it is strongly advised that you label wiring to all devices in the system.
ATTENTION
Do not run signal or communication wiring and power wiring in the same wire conduit. To avoid interference,
wires with different signal characteristics should be routed separately.
ATTENTION
Safety First!
Be sure to disconnect the power cord before installing and/or wiring your device.
Electrical Current Caution!
Calculate the maximum possible current in each power wire and common wire. Observe all electrical codes
dictating the maximum current allowable for each wire size.
If the current goes above the maximum ratings, the wiring could overheat, causing serious damage to your
equipment.
Temperature Caution!
Be careful when handling the unit. When the unit is plugged in, the internal components generate heat, and
consequently the outer casing may feel hot to the touch.
Connecting the Power
The DA-681 offers both single power and dual power inputs. Use a screwdriver to remove the screws. Connect
the power cord to the screws and then attach the screws to the unit. For single models (SP), use Power 1 only;
for dual power models (DP and DPP-T), use both Power 1 and Power 2 for power input installation. Refer to the
following figure for detailed information.
2-4
DA-681 Series Embedded Computer
Hardware Installation
Wiring the Power Inputs
For SP Models
2-5
DA-681 Series Embedded Computer
Hardware Installation
For DP Models
2-6
DA-681 Series Embedded Computer
Hardware Installation
For DPP-T Models
2-7
DA-681 Series Embedded Computer
Hardware Installation
Power Input Wiring Description
Read the following section for a detailed power input wiring description.
Terminal Number
Description
Note
1
PWR1 Line / DC +
PWR1 Line / DC + is connected to the positive (+)
terminal if the power source is DC, or to the Line
terminal if the power source is AC.
2
PWR1 Neutral / DC –
PWR1 Neutral / DC – is connected to the
negative (–) terminal if the power source is DC, or
to the Neutral terminal if the power source is AC.
3
PWR1 Surge Ground is connected to the Chassis
PWR1 Surge Ground
Ground via a jumper on the terminal block. Surge
Ground is used as the ground conductor for all
surge and transient suppression circuitry. NOTE:
Surge Ground must be disconnected from Chassis
Ground during HIPOT (dielectric strength) testing.
4
Chassis Ground is connected to the Safety
Chassis Ground
Ground terminal for AC inputs, or the equipment
ground bus for DC inputs. Chassis ground connects
to both power supply surge grounds via a
removable jumper.
5
NC
No function
6
NC
No function
7
Chassis Ground
Chassis Ground is connected to the Safety
Ground terminal for AC inputs or the equipment
ground bus for DC inputs. Chassis ground connects
to both power supply surge grounds via a
removable jumper.
8
PWR2 Surge Ground is connected to the Chassis
PWR2 Surge Ground
Ground via a jumper on the terminal block. Surge
Ground is used as the ground conductor for all
surge and transient suppression circuitry. NOTE:
Surge Ground must be disconnected from Chassis
Ground during HIPOT (dielectric strength) testing.
9
PWR2 Line / DC + is connected to the positive (+)
PWR2 Line/ DC +
terminal if the power source is DC, or to the Line
terminal if the power source is AC.
2-8
DA-681 Series Embedded Computer
10
Hardware Installation
PWR2 Neutral / DC –
PWR2 Neutral / DC – is connected to the
negative (–) terminal if the power source is DC, or
to the Neutral terminal if the power source is AC.
For AC Power Input
PWR1 Line/ DC + should be connected to AC (Line).
PWR1 Neutral / DC – should be connected to AC (Neutral).
Surge Ground is connected to the Chassis Ground via a braided cable or other appropriate grounding wire.
Surge Ground is used as the ground conductor for all surge and transient suppression circuitry internal to the
PT-7324 unit.
Chassis Ground should be connected to the AC Ground terminal.
ATTENTION
Equipment must be installed according to the applicable country wiring codes.
Surge Ground MUST be disconnected from the Chassis Ground during HIPOT (dielectric strength) testing.
All line-to-ground transient energy is shunted to the Surge Ground terminal. In cases where users require the
inputs to be isolated from the ground, remove the ground braid between Surge and Chassis Ground. Note that
all line-to-ground transient protection circuitry will be disabled.
For DC Power Input
The DA-681 series low voltage DC power supply features reverse polarity protection and dual independent
inputs. The dual power inputs allow the connection of two DC sources with the same nominal voltage to provide
redundant power supply inputs. The DC source must be connected to the DC inputs according to the polarity
markings on the unit.
ATTENTION
Equipment must be installed according to the applicable country wiring codes.
Surge Ground should be connected to Chassis Ground via a braided cable or other appropriate ground wire.
Chassis Ground must be connected to the protection earth.
All line-to-ground transient energy is shunted to the Surge Ground terminal. In cases where users require the
DC inputs to be isolated from ground, remove the ground braid between Surge and Chassis Ground. Note that
all line-to-ground transient protection circuitry will be disabled.
HIPOT (Dielectric Strength) Testing
Before performing the HIPOT test, you MUST have the jumpers removed and the braided ground cable
disconnected. This is required to prevent the transient/surge suppression circuitry, which is connected to Surge
Ground from being activated during the HIPOT test.
2-9
DA-681 Series Embedded Computer
Hardware Installation
When finished, press the Power Switch button to start the system. It will take about 30 to 60 seconds for your
operating system to boot up.
Reset Button
Pressing the Reset button initiates a hardware warm reboot. The button plays the same role as a desktop PC’s
reset button. After pressing the reset button, the system will reboot automatically. During normal use, you
should NOT use the Reset Button. You should only use this button if the software is not working properly. To
protect the integrity of data being transmitted or processed, you should always reset the system from the
operating system with the software reboot function.
Front Panel LED
There are 40 LED indicators on the front panel. Information about each LED is given in the following table.
LED Name
Color
LED Description
Power
Green
Power is on
Off
No power input or power error
Yellow /
Data is being written to or to read from the storage unit
Storage
Blinking
Off
Storage unit is idle
Ethernet Port
Green
100 Mbps of Ethernet Port is active
100 Mbps
Off
No activity
Ethernet Port
Yellow
10 Mbps of Ethernet Port is active
10 Mbps
Off
No activity
Serial Port TX 1-12
Green
Serial port is transmitting data
Off
No operation
Yellow
Serial port is receiving data
Off
No operation
Red
Power 1 fails (For dual power models only)
Off
Power works well
Red
Power 2 fails (For dual power models only)
OFF
Power works well
Serial Port RX 1-12
Power Fail 1
Power Fail 2
2-10
DA-681 Series Embedded Computer
Hardware Installation
Connecting to a Display
Your DA-681 embedded computer comes with a D-Sub 15-pin female connector to connect to the VGA monitor.
Be sure to remove the power before you connect or disconnect the monitor cable.
Pin No.
Signal Definition
1
RED
2
GREEN
3
BLUE
4
---
5
GND
6
CRT_DETECT#
7
GND
8
GND
9
+5V
10
GND
11
---
12
DDC_DATA
13
HSYNC
14
VSYNC
15
---
Connecting a PS/2 Keyboard and Mouse
Your DA-681 embedded computer comes with a PS/2 mini-DIN connector to connect to a PS/2 keyboard and
PS/2 mouse by using a Y-type cable. This 6-pin mini-DIN connector has the pin assignments shown below.
Pin No.
Signal Definition
1
PS/2 Keyboard Data
2
PS/2 Mouse Data
3
GND
4
VCC
5
PS/2 Keyboard Clock
6
PS/2 Mouse Clock
Use the Y-type cable to convert the mini-DIN connector into two 6-pin mini-DIN connectors to connect both a
PS/2 keyboard and PS/2 mouse at the same time. (The Y-type cable is not included in the accessory package.
It should be purchased separately. You may also use the USB ports to connect your USB-based keyboard and
mouse.)
2-11
DA-681 Series Embedded Computer
Hardware Installation
ATTENTION
Please note that without the Y-type cable, the PS/2 connector on the DA-681 can only work with a PS/2
keyboard. A PS/2 mouse will not function when directly connected to the PS/2 connector on the DA-681
embedded computer.
Connecting USB Devices
The DA-681 embedded computer has two USB 2.0 ports on the rear panel. All of the ports are UHCI, Rev 2.0
compliant and support Plug & Play and hot swapping. These ports can be used to connect USB devices, such as
a keyboard, mouse, USB flash disk, and USB CD-ROM. In addition, both USB ports support system boot up,
which can be activated by modifying the BIOS settings. The chapter “BIOS Setup” describes the configuration
process in detail.
LAN Ports
The DA-681 has 6 10/100 Mbps LAN ports. When the cable is properly connected, the LEDs on the RJ45
connectors will glow to indicate a proper connection.
LED
Pin No.
Signal Definition
1
TX+
2
TX-
3
RX+
4
---
5
---
6
RX-
7
---
8
---
Color
Description
Ethernet Port
Green
100 Mbps of Ethernet Port is active
100 Mbps
Off
No activity
Ethernet Port
Yellow
10 Mbps of Ethernet Port is active
10 Mbps
Off
No activity
The default IP addresses and netmasks of the Gigabit LAN ports are as follows:
2-12
DA-681 Series Embedded Computer
Hardware Installation
Default IP Address
Netmask
LAN 1
192.168.3.127
255.255.255.0
LAN 2
192.168.4.127
255.255.255.0
LAN 3
192.168.5.127
255.255.255.0
LAN 4
192.168.6.127
255.255.255.0
LAN 5
192.168.7.127
255.255.255.0
LAN 6
192.168.8.127
255.255.255.0
Upgrading the Memory Module
The DA-681 embedded computer supports one 200-pin DDR2 400/533 SODIMM module, up to 1 GB. One DDR2
SDRAM memory module is pre-installed. To upgrade the DDR2 SDRAM memory module, follow these
instructions:
1. Disconnect the DA-681 from the power source.
2. The DA-681’s memory module is located inside the DA-681. Use a screwdriver to remove the screws on the
top cover of the DA-681.
3. After removing the memory module cover, you will see the DDR2 SDRAM module.
2-13
DA-681 Series Embedded Computer
Hardware Installation
However, DDR2 SDRAM memory has been installed already. To upgrade the memory, you need to remove
the original memory by pushing two clutches at both sides of the module.
Gently insert the new memory into the module. Make sure the direction is correct.
2-14
DA-681 Series Embedded Computer
Hardware Installation
Push the memory all the way down to complete.
Installing a CompactFlash Card
The DA-681 embedded computer comes with a CompactFlash socket. To insert a CompactFlash card, follow
these instructions.
1. Disconnect the DA-681 from its power source.
2. The DA-681’s CompactFlash socket is located inside the DA-681. Use a screwdriver to remove all the screws
on the top cover of the DA-681.
2-15
DA-681 Series Embedded Computer
Hardware Installation
3. Insert the CompactFlash card into the socket. Push downwards to make sure that the card is firmly inserted.
ATTENTION
Make sure you insert the card in the right direction. The card cannot be inserted if you insert the card in the
wrong direction.
ATTENTION
The DA-681 embedded computer does not support the CompactFlash hot swap and PnP (Plug and Play)
functions. It is necessary to remove power source first before inserting or removing the CompactFlash card.
Installing a SATA Hard Disk
The DA-681 embedded computer has one SATA connector for installing a SATA hard disk. To install a 2.5-inch
SATA hard disk, follow these instructions.
1. Disconnect the DA-681 from its power source.
2-16
DA-681 Series Embedded Computer
Hardware Installation
2. Open the top cover of the DA-681. A hard disk bracket is located on the right side of the DA-681.
3. Use a screwdriver to remove the four screws on the hard disk bracket.
4. Install the SATA hard disk in the hard disk bracket.
2-17
DA-681 Series Embedded Computer
Hardware Installation
5. Next, install the SATA hard disk and hard disk bracket back into the DA-681. Make sure the screws are
firmly attached.
6. Connect the SATA disk cable and power cable to the SATA hard disk.
ATTENTION
The SATA hard disk cable and SATA power cable are not included in the basic shipment of the DA-681
embedded computer. Any standard SATA disk cable and power cable can be used.
2-18
3
3.
BIOS Setup
This chapter describes the BIOS settings of the DA-681 embedded computers. The BIOS is a set of input/output
control routines for peripherals. The BIOS is used to initialize basic peripherals and helps boot the operating
system before the operating system is loaded. The BIOS setup allows the user to modify the system
configurations of these basic input/output peripherals. All of the configurations will be stored in the battery
backed up CMOS RAM, which retainsthe system information after system reboots or the power is removed.
The following topics are covered in this chapter:
 Entering the BIOS Setup Utility
 Modifying the BIOS Main Settings
 Basic Configuration
 System Security
 Advanced Settings
 Hard Disk Boot Priority
 Advanced BIOS Features
 CPU Features
 Advanced Chipset Settings
 PnP/PCI Configurations
 Frequency/Voltage Control
 Peripherals
 OnChip IDE Device
 Onboard Device
 Onboard I/O Chip Setup
 Power
 Wake Up Control
 Hardware Monitor
 Load Defaults
 Exiting the BIOS Setup
 Upgrading the BIOS
DA-681 Series Embedded Computer
BIOS Setup
Entering the BIOS Setup Utility
To enter the BIOS setup utility, press the “Del” key while the system is booting up. The main BIOS Setup screen
will appear.
A basic description of each function key is listed at the bottom of the screen. Refer to these descriptions to learn
how to scroll about the screen, how to select by pressing “Enter,” and how to use the other hot keys listed
below.
F1: General Help
F5: Previous Value
F6: Default Settings
F7: Turbo Settings
F10: Save
ESC: Exit
Modifying the BIOS Main Settings
Basic Configuration
After entering the BIOS Setup, or choosing the “Main” option, the BIOS main menu will be displayed. Use this
menu to check the basic system information such as memory and IDE hard drive. You can also use the menu
for configuring basic system parameters, such as date, time, hard drive, display, and system security.
3-2
DA-681 Series Embedded Computer
BIOS Setup
System Security
To set up system security, select the “Security” option under “Main” to bring up the following screen.
This menu includes two options: “Set Password” and “Security Option.”
When you select the Set Password option, a pop-up “Enter Password:” window will appear on the screen. The
password that you type will replace the password stored in the CMOS memory. You will be required to confirm
the new password. Just re-type the password and then press <Enter>. You may also press <Enter> to abort
the selection and not enter a password.
To clear an existing password, just press <Enter> when you are prompted to enter the password. A message
will show up confirming that the password will be disabled. Once the password is disabled, the system will boot
and you can enter the “BIOS Setup Menu” without entering a password.
Once a password has been set, you will be prompted to enter the password each time you enter Setup. This
prevents unauthorized persons from changing any part of your system configuration. In addition, when a
password setting is enabled, you can set up the BIOS to request a password each time the system is booted up.
The “Security Option” setting determines when a password prompt is required. If the “Security Option” is set
to “System,” the password must be entered both at boot up and when entering the BIOS Setup Menu. If the
password is set for “Setup,” the password prompt only occurs when you enter the “BIOS Setup Menu.”
3-3
DA-681 Series Embedded Computer
BIOS Setup
Advanced Settings
The “Advanced Features” screen will appear when choosing the “Advanced” item from the main menu.
Hard Disk Boot Priority
First/Second/Third Boot Device
This option allows users to select or change the device boot priority. You may set 3 levels of priority to
determine the boot up sequence for different bootable devices, such as a hard drive, CD-ROM, and removable
devices. Select the order in which devices will be searched in order to find a boot device. The available options
are “CDROM (default for first boot device),” “Removable” (default for third boot device), “Hard Disk” (default
for second boot device) and “Disabled.”
Boot Other Devices
This setting allows the system to try to boot from other devices if the system fails to boot from the 1st, 2nd, or
3rd boot devices. The options are “Enabled” (default) and “Disabled.”.
3-4
DA-681 Series Embedded Computer
BIOS Setup
Advanced BIOS Features
When you select the “Advanced BIOS Features” option under the “Advanced” menu, the following configuration
menu will appear.
CPU Features
Virus Warning
This item allows you to choose the VIRUS warning feature for IDE hard disk boot sector protection. If this
function is enabled and someone attempts to write data into this area, the BIOS will display a warning message
on the screen and sound an audio alarm (beep).
Options: Disabled (default), Enabled.
CPU L1 & L2 Cache
Make the CPU internal cache active or inactive. System performance may degrade if you disable this item.
Options: Enabled (default), Disabled.
Quick Power on Self Test
This setting allows the system to skip certain tests while the system boots up. Enable this feature to speed up
the boot up process.
Options: Enabled (default), Disabled.
Boot Up NumLock Status
Select the power on state for NumLock.
Options: On (default), Numpad keys are number keys.
Off, Numpad keys are arrow keys.
3-5
DA-681 Series Embedded Computer
BIOS Setup
Typematic Rate Setting
When “Enabled” both “Typematic Rate” and “Typematic Delay” can be configured. Typematic Rate determines
the keystroke repeat rate used by the keyboard controller.
Options: Disabled (default), Enabled
Typematic Rate (Chars/Sec)
The rate at which the keyboard will repeat a keystroke if users press key continuously.
Typematic Delay (milliseconds)
The delay before keystrokes begin to repeat.
Options: 250 ms (default), 500 ms, 750 ms, 1000 ms
APIC Mode
Set the “Advanced Programmable Interrupt Controller” as active or inactive.
Options: Disabled, Enabled (default)
MPS Version Control for OS
Set the “Multi-Processor Specification.” 1.1 was the original specification. MPS version 1.4 adds extended
configuration tables for improved support for multiple PCI bus configurations and greater expandability. In
addition, MPS 1.4 introduces support for a secondary PCI bus without requiring a PCI bridge.
Options: 1.1, 1.4 (default)
OS Select for DRAM > 64 MB
Select “OS2” only if you are running the OS/2 operating system with greater than 64 MB of RAM.
Options: Non-OS2 (default), OS2
3-6
DA-681 Series Embedded Computer
BIOS Setup
Execute Disable Bit
Intel hardware-based security feature can help reduce system exposure to viruses and malicious code.
Options: Enabled (default), Disabled.
Advanced Chipset Settings
System BIOS Cacheable
The BIOS ROM addresses F0000h to FFFFFh are cached, and the cache controller is enabled to access the
system. Enable it to speed up system performance.
Options: Enabled (default), Disabled
Video BIOS Cacheable
Enabling this feature allows the caching of the video BIOS and may improve performance. A system error could
occur if another program writes to this memory cache area.
Options: Enabled, Disabled (default)
Memory Hole at 15M-16M
When enabled, the system will reserve a system memory area for the ISA adapter ROM, and this memory area
will not be available for caching.
Options: Enabled, Disabled (default)
On-Chip Frame Buffer Size
This item determines the frame buffer size for the VGA function, and will share the system memory.
Options: 1 MB, 8 MB (default)
3-7
DA-681 Series Embedded Computer
BIOS Setup
DVMT Mode
Setting the DVMT operating mode. When set to “Fixed,” the graphics driver will reserve a fixed portion of the
system memory as graphics memory. When set to “DVMT,” the graphics driver will dynamically allocate system
memory as graphics memory, according to system and graphics requirements. When set to “BOTH,” the
graphics driver will allocate a fixed amount of memory as dedicated graphics memory, as well as allow more
system memory to be dynamically allocated between the graphics processor and the operating system.
Options: FIXED, DVMT (default), BOTH
DVMT/FIXED Memory Size
Sets the maximum amount of system memory that can be allocated as graphics memory.
Options: 64 MB, 128 MB (default).
PnP/PCI Configurations
Init Display First
This item allows you to decide whether the PCI interface or onboard graphic chip is activated first.
Options: PCI (default), Onboard
Resources Controlled By
The BIOS can automatically configure all boot and Plug and Play compatible devices. If you choose Auto, you
will not be able to assign IRQ and memory base address fields manually, since the BIOS assigns them
automatically.
Options: Auto (default), Manual
IRQ Resources
When resources are controlled manually, you can assign each system interrupt to Reserved or PCI device. This
is only configurable when “Resources Controlled By” is set to “Manual.”
Options: IRQ 3, 4, 5, 7, 10, 11 for PCI device.
3-8
DA-681 Series Embedded Computer
BIOS Setup
PCI/VGA Palette Snoop
This item can be used to fix the color display error of non-standard VGA display adaptors such as graphics
accelerators or MPEG video cards.
Options: Disabled (default), Enabled
PCI Latency Timer (CLK)
Configure PCI Latency Time to optimize the PCI speed. The range of possible values is “0” to “255” with a
default value of “32.”
Frequency/Voltage Control
Spread Spectrum
Select “Enabled” to reduce EMI (Electromagnetic Interference). The default is “Enabled.”
Peripherals
3-9
DA-681 Series Embedded Computer
BIOS Setup
OnChip IDE Device
IDE HDD Block Mode
Block mode is otherwise known as block transfer, multiple commands, or multiple sector read/write. Select the
“Enabled” option if your IDE hard drive supports block mode (most new drives do). The system will
automatically determine the optimal number of blocks to read and write per sector.
Options: Enabled (default), Disabled
On-Chip Channel 0/1 PCI IDE
This item lets users enable or disable the IDE channel.
Options: Disabled, Enabled (default)
IDE Channel 0/1 Master/Slave PIO
The IDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-4) for each of the IDE devices that
the onboard IDE interface supports. Modes 0 to 4 will increase performance incrementally. In Auto mode, the
system automatically determines the best mode for each device.
Options: Auto (default), Mode0, Mode1, Mode2, Mode3, Mode4
IDE Channel 0/1 Master/Slave UDMA
Ultra DMA functionality can be implemented if it is supported by the IDE hard drives in your system. Your
operating environment also requires a DMA driver (Windows 95 OSR2 or a third party IDE bus master driver).
If your hard drive and your system software both support Ultra DMA, select “Auto” to enable BIOS support.
Options: Auto (default), Disabled
3-10
DA-681 Series Embedded Computer
BIOS Setup
Onboard Device
USB Controller
This feature allows you to enable/disable the USB controller.
Options: Enabled (default), Disabled
USB 2.0 Controller
This feature allows you to enable/disable the USB 2.0 controller.
Options: Enabled (default), Disabled
USB Keyboard Support
This item is useful for DOS systems. Enable it if you want to use a USB keyboard under a DOS environment.
Options: Enabled, Disabled (default)
Onboard LAN Boot ROM
Decide whether to invoke the boot ROM of the onboard LAN chip.
Options: Enabled, Disabled (default)
3-11
DA-681 Series Embedded Computer
BIOS Setup
Onboard I/O Chip Setup
Debug Port
Select an address and corresponding interrupt for this debug port. This port is only for engineers who are
debugging programs.
Options: Disabled (default), 3F8/IRQ4
PWRON after PWR-Fail
This field determines whether your system will boot after restoring power from a power failure. If you select
“On,” the system will boot after restoring power from a power failure. If you select “Former-Sts” (Forrner
Status), the system will boot or not, depending on the status before the power failure.
Options: Off, On (default), Former-Sts.
3-12
DA-681 Series Embedded Computer
BIOS Setup
Power
The Power Setup Menu allows you to configure your system power-up/ power-down options.
Soft-Off by PWR-BTTN
Select the “Instant-Off” option if you would like the system to power down immediately after pushing the power
button. Selecting the “Delay 4 Sec” option will require pushing the power button continuously for at least 4
seconds before the system powers down.
Options: Delay 4 Sec, Instant-Off (default).
Wake Up Control
Press “Enter” to select Wake Up Control items.
Lan Wake up
This feature is used to wake up the system by a LAN device from a remote host.
Please note that this function only works for LAN Port 5 and Port 6.
Options: Disabled (default), PCI
RTC Wake Up
When “Enabled,” you can set the date and time at which the RTC (real-time clock) alarm awakens the system
from Suspend mode.
Options: Disabled (default), Enabled.
Date (of Month) Alarm
Set the “date” for the “RTC Wake Up” function when “RTC Wake Up” is set to “Enabled.”
3-13
DA-681 Series Embedded Computer
BIOS Setup
Time (hh: mm: ss) Alarm
You can set the hour, minute, and second of the “RTC Wake Up” function when “RTC Wake Up” is set to
“Enabled.”
Hardware Monitor
CPU Warning Temperature
This item sets the CPU warning temperature. When the CPU temperature is higher than this setting, the system
will throttle down to 75%. When the CPU temperature is higher than this setting plus 10°C, the system will
throttle down to 50%.
Options: 80°C/176°F, 90°C/194°F (default), 100°C/212°F, Disabled.
Warning Beep
Set the beep to sound or not sound when the CPU temperature is over the CPU warning temperature.
Options: Disabled (default), Enabled.
3-14
DA-681 Series Embedded Computer
BIOS Setup
Load Defaults
Load System Default Settings
Use this option to load system factory default settings instead of the current BIOS settings. This option is useful
for when the system is unstable. Users do not need to remember what settings were active before the system
fails.
Load System Turbo Settings
Use this option to load system optimized settings. If the system is not stable, please load the system default
settings.
Load CMOS from BIOS
Use this option to load BIOS settings from flash ROM to CMOS.
Save CMOS to BIOS
Use this option to save the BIOS settings from the CMOS to flash ROM.
3-15
DA-681 Series Embedded Computer
BIOS Setup
Exiting the BIOS Setup
To exit the BIOS setup utility, choose “Exit.” Pressing <ESC> will achieve the same result.
Save & Exit Setup
Save all configuration changes to CMOS (memory) and exit setup. A confirmation message will be displayed
before proceeding.
Exit Without Saving
Abandon all changes made during the current session and exit setup. A confirmation message will be displayed
before proceeding.
3-16
DA-681 Series Embedded Computer
BIOS Setup
Upgrading the BIOS
This section describes how to upgrade the bios.
Step 1:
Create a Bootable USB Disk.
There are two recommended methods for creating a bootable USB disk:
Method 1: Use HP USB Disk Format Tool
1. Download FreeDOS system files kernel.sys and command.com from http://www.freedos.org/kernel/
2. Copy DOS system files kernel.sys and command.com to a specified directory (C:\FreeDOS in this example).
3. Start the HP USB Disk Storage Format Tool and select the USB device that you want to use as a bootable
disk in the Device drop down box.
4. Select FAT in the File system drop down box.
5. Type the disk name in the Volume label field.
6. Check the option Create a DOS startup disk under format options.
7. Specify the directory of the system files (for example, C:\FreeDOS).
8. Click Start to format and create the USB disk.
ATTENTION
HP’s USB Disk Storage Format Tool can be downloaded from many web sites. Use the phrase “HP USB Disk
Storage Format Tool” to search the Internet, and then download the tool from one of the websites that is listed.
3-17
DA-681 Series Embedded Computer
BIOS Setup
Method 2: Use the BootFlashDOS utility.
Run the BootFlashDOS utility and then press Start.
ATTENTION
The BootFlashDOS utility can be downloaded from the following website:
http://gocoding.com/page.php?al=bootflashdos.
Step 2:
Prepare the Upgrade Tool and BIOS Binary File.
You must use the BIOS upgrade installation file to upgrade the BIOS. You can download it from the Moxa
Download Center at:
http://web4.moxa.com/support/download_center.asp
1. Get the BIOS upgrade installation file. The file name should have following format:
BIOS_DA-68X_V1.0_Build_08042310.zip.
2. Copy the file to the Bootable USB Disk.
3. Double click to extract the BIOS update installation file. The file includes a binary file in the form
xxxxxxx.Sxx and the upgrade utility named awdflash.exe.
Step 3:
Set up the BIOS to Boot from the USB Disk.
1. Insert the USB disk.
2. Power on and press DEL to enter the BIOS Setup menu.
3. Select Advanced  Hard Disk Boot Priority and then press Enter.
4. From the Setup menu, use “↑” or “↓” to select the USB device.
5. Press “+” to move it up to the first priority, and press “Esc” to exit the setup menu.
6. Make sure the first boot device is Hard Disk. If it isn’t, press Enter to change it.
7. Select Exit  Save & Exit Setup and then press Enter.
8. Choose Y to save to the CMOS and then exit.
3-18
DA-681 Series Embedded Computer
Step 4:
BIOS Setup
Run awdflash.exe to upgrade the BIOS.
1. If the BIOS Setup is correct, it will restart and boot from the USB disk.
2. Run awdflash xxxxxxx.Sxx from the command line to upgrade the BIOS. Replace xxxxxxx.Sxx with the
BIOS binary file name discussed in Step 2.
3. Press F1 to reset the system after the bios update is complete. The system should reboot at this time.
3-19
DA-681 Series Embedded Computer
BIOS Setup
ATTENTION
Do NOT switch off the power supply during the BIOS upgrade, since doing so may cause the system to crash.
Step 5:
Load BIOS Default.
1. When the system reboots, the user should load the CMOS Setup default value again.
2. Press DEL to open the BIOS Setup menu.
3. Select Defaults  Load System Default Settings and then choose Y.
4. Select Exit  Save & Exit Setup and then press Enter to choose Y to save the settings to CMOS and exit.
3-20
A
A.
Safety Installation Instructions
A. RTC Battery Warning
CAUTION: There is a risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries
according to the instructions.
B. Fuse Warning
CAUTION: For continued protection against fire, replace only with same type and rating of fuse.
C. Rackmount Warning
The following or similar rackmount instructions are included with the installation instructions:
(1) Elevated Operating Ambient: If installed in a closed or multi-unit rack assembly, the operating
ambient temperature of the rack environment may be greater than the room ambient temperature.
Therefore, consideration should be given to installing the equipment in an environment compatible with the
maximum ambient temperature (Tma) specified by the manufacturer.
(2) Reduced Air Flow: Installation of the equipment in a rack should be such that the amount of air flow
required for safe operation of the equipment is not compromised.
(3) Mechanical Loading: Mounting of the equipment in the rack should be such that a hazardous
condition is not achieved due to uneven mechanical loading.
(4) Circuit Overloading: Consideration should be given to the connection of the equipment to the supply
circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring.
Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.
(5) Reliable Grounding: Reliable grounding of rack-mounted equipment should be maintained. Particular
attention should be given to supply connections other than direct connections to the branch circuit (e.g., by
using power strips).
B
B.
Regulatory Statement Approval
This 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.
Class A: FCC Warning! This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference in which case the user will be required to correct the
interference at his own expense.
European Community
Warning:
This is a Class A product. In a domestic environment this product may cause radio interference in which case
the user may be required to take adequate measures.