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DA-662A Series Hardware 

Hardware Connection Description 

 

3-2 

Placement Options 

Rack Mounting 

The DA-662A series is designed to be mounted on a standard 19-inch rack. Two L-shaped metal plates are 
included as standard accessories with the DA-662A series. Use the enclosed pair of L-shaped metal plates and 
screws to fasten your DA-662A series to the rack cabinet. Two placement options are available. You can either 
lock the front or the rear panel of the DA-662A series to the front of the rack. Each L-shaped plate has 6 holes, 
leaving two outer or inner holes open for your convenience. 

Connecting the Hardware 

This section describes how to connect the DA-662A series to serial devices. The topics covered in this section 
are: 

Wiring Requirements, Connecting the Power, Connecting to the Network, Connecting to a 

Serial Device,

 and 

Connecting to the Console Port

Wiring Requirements 

 

ATTENTION 

Safety First! 

Be sure to disconnect the power cord before installing and/or wiring your DA-662A series. 

Wiring 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 DA-662A series. When plugged in, the DA-662A series’ internal components 
generate heat, and consequently the outer casing may feel hot to the touch. 

 

You should observe the following common wiring rules: 

 

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. 

NOTE: 

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. 

 

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. 

 

Where necessary, it is strongly advised that you label wiring to all devices in the system. 

Connecting the Power 

To power on the DA-662A series, use a power cord to connect the power line to the DA-662A series’ AC power 
connector. The power connector is located on the right side of the rear panel. Next, turn on the power switch. 
The DA-662A series takes about 30 seconds to boot up. Once the device is ready, the Ready LED on the front 
panel will light up, and the DA-662A series model name and firmware version will appear on the LCD screen. 

Summary of Contents for DA-662A Series

Page 1: ...DA 662A Series Hardware User s Manual Edition 2 0 September 2018 www moxa com product 2018 Moxa Inc All rights reserved ...

Page 2: ...ges 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 period...

Page 3: ... DA 662A 16 2 4 LED Indicators 2 4 Reset Button 2 4 LCD Screen 2 5 Push Buttons 2 5 Real time Clock 2 5 3 Hardware Connection Description 3 1 Placement Options 3 2 Rack Mounting 3 2 Connecting the Hardware 3 2 Wiring Requirements 3 2 Connecting the Power 3 2 Connecting to the Network 3 3 Connecting to a Serial Device 3 3 Configurable Pull High Low Resistors for the RS 485 Port 3 4 Connecting to th...

Page 4: ...o comes with CF and USB ports to make it easy to add additional storage space The computers are designed with a standard 19 inch rugged 1U rackmount case and are embedded with a 100 240 VAC power input This combination of features gives users a robust and reliable ready to run solution for applications such as data acquisition and power substations The following topics are covered in this chapter ...

Page 5: ... of reliable computing power expected of a multifunctional controller Choose from models of the DA 662A series that come pre installed with the open standard Linux OS The built in SDK makes program development easy by allowing you to follow the common programming procedures used on a standard PC All of the software you develop for your own applications can be stored in the onboard Flash memory The...

Page 6: ...ol 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 DA 662A I 8 16 LX only TxD RxD RTS CTS GND RS 422 TxD TxD RxD RxD GND RS 485 4w TxD TxD RxD RxD GND RS 485 2w Data Data GND LEDs System OS Ready LAN 10 100M x 4 Serial TxD RxD 8 to 16 o...

Page 7: ...ESD Contact 8 kV Air 15 kV IEC 61000 4 3 RS 3 V m 80 MHz to 1 GHz IEC 61000 4 4 EFT Power 1 kV Signal 0 5 kV IEC 61000 4 5 Surge Power 2 kV Signal 4 kV IEC 61000 4 6 CS 3 V IEC 61000 4 8 IEC 61000 4 11 Green Product RoHS CRoHS WEEE Reliability Alert Tools Built in buzzer and RTC real time clock Automatic Reboot Trigger Built in WDT watchdog timer MTBF mean time between failures 125 733 hrs Warrant...

Page 8: ... for wireless operation With the reliable and stable hardware platform that is provided you may devote your attention to the development of your application In this chapter learn the basics about the embedded computer hardware and its different parts The following topics are covered in this chapter Appearance DA 662A 8 DA 662A 16 Dimensions Hardware Block Diagram DA 66A 8 DA 662A 16 LED Indicators...

Page 9: ...DA 662A Series Hardware Hardware Introduction 2 2 Appearance DA 662A 8 Front View Rear View DA 662A 16 Front View Rear View ...

Page 10: ...DA 662A Series Hardware Hardware Introduction 2 3 Dimensions Hardware Block Diagram The following block diagrams show the layout of the DA 662A series internal components DA 66A 8 ...

Page 11: ... front panel continuously for at least 5 seconds to load the factory default configuration After the factory default configuration has been loaded the system will reboot automatically The Ready LED will blink on and off for the first 5 seconds and then maintain a steady glow once the system has rebooted We recommend that you only use this function if the software is not working properly and you wa...

Page 12: ...ttons are MENU up cursor down cursor and SEL Button Action MENU Displays the main menu Scrolls up through a list of items shown on the LCD screen s second line Scrolls down through a list of items shown on the LCD screen s second line SEL Selects the option listed on the LCD screen Real time Clock The DA 662A series real time clock is powered by a lithium battery We strongly recommend that you do ...

Page 13: ...his chapter Placement Options Rack Mounting Connecting the Hardware Wiring Requirements Connecting the Power Connecting to the Network Connecting to a Serial Device Configurable Pull High Low Resistors for the RS 485 Port Connecting to the Console Port USB Host CompactFlash ...

Page 14: ...t causing serious damage to your equipment Temperature Caution Be careful when handling the DA 662A series When plugged in the DA 662A series internal components generate heat and consequently the outer casing may feel hot to the touch You should observe the following common wiring rules Use separate paths to route wiring for power and devices If power wiring and device wiring paths must cross mak...

Page 15: ...on to the Ethernet in the following ways Pin Signal 1 ETx 2 ETx 3 ERx 4 5 6 ERx 7 8 Connecting to a Serial Device Use properly wired serial cables to connect the DA 662A series to serial devices The DA 662A series serial ports P1 to P16 use 8 pin RJ45 connectors The ports can be configured by software for RS 232 RS 422 or 2 wire RS 485 The pin assignments are shown in the following table Pin RS 23...

Page 16: ... accompanying figure The first row is for setting pull high resistors the second row is for setting termination resistors and the third row is for setting pull low resistors Each serial port has 6 jumper caps for configuring the resistors The pin assignments are shown in the following table Jumper setting RS485 Data RS485 Data Pull High resistors 1 2 150 kΩ 2 3 1 kΩ Termination 1 2 Open 2 3 120 Ω ...

Page 17: ...onnected will be mounted automatically by mount to mnt sdc and the second device will be mounted automatically to mnt sdd The DA 662A series will be un mounted automatically with the umount command when the device is disconnected CompactFlash The DA 662A series have a built in CompactFlash socket The CompactFlash socket allows users to add additional memory by inserting a CompactFlash memory card ...

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