Trycom Technology TRP-C08H User Manual

TRP-C08H

User’s Manual

USB To 4-Port RS232/422/485 Isolated Converter

(2-Port RS232 and 2-Port 422/485)

Printed DEC. 2005 Rev 1.0

Copyright

Copyright Notice: The information in this manual is subject to change without prior notice in order to improve
reliability , design and function and dosed not represent a commitment on the part of the manufacturer. No part of this
manual may be reproduced, copied, or transmitted in any form without the prior written permission of manufacturer.
Acknowledgment Products mentioned in this manual are mentioned for identification purpose only. Products manes
appearing in this manual may or may not be registered trademarks or copyright of their respective companies.

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1. Introduction………………………………………………………………….………….…………….3

1-1 Features…………..………………………….…………………………………….…….…….…….3
1-2 Specification………………………………………………………………………..…….…………3

2. Hardware Description………….………………………………………………….…….…….…….4

2-1 Panel layout…………………..……..……………………………………………….…………...…4
2-2 LED Indictor…………………………………………………………..……………………………..4
2-3 Serial Connection……………………………………………………………………………..……5
2-4 Power Connection……………………..…………………………………………………………...5

2-4-1 USB Bus power…………..……………………………………………………………………....5

2-4-2 External Power……………………………………….........…………………………………..…5

2-5 USB Connection.....………………………….…………………………………………………..…5

2-6 Power Switch…………………………..….…………………………………………….………..…5

2-7 RS232 Pin Configuration (COM C and COM D)………………………………………..……....5

2-8 RS485 Wiring………………………..………….…………………………………….….…..……...6
2-9 RS422 Wiring……………………………………………………………….………..…..………….6
2-10 RS232 Wiring………………………….…………..………………………………..……….……..7
2-11 USB Cable Wring...…….…………………………………………………………...……………..7

3.TRP-C08H Software Installation……….…………………………………………….…..……....…7

4.Remove or update TRP-C08H Driver………..…………..……………………………….………..9

5.Terminal Resister ………………………………………………………………………….….…….10

5-1 RS422 terminal resistor connection ….……………..……………………………...….……..10
5-2 RS485 terminal resistor connection…………………….……………………………….…….10

6.How to test TRP-C08H………………………………………………………………………..……..11

6-1 Res422 Loop Back T est………………………………………………..…..………………….….11
6-2 RS232 Loop Back Test ……………………………………………………………….………….11

6-3 Loop Back Test Software……………………………………………..…………………….…...11

7.How to test RS485 …………….….……………………………………………………….….…….13

7-1 RS485 Pin Wiring…………..…..……………………………………………………………..…..14

1. Introduction

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The TRP-C08H allows you to connect 2 RS232 and 2 RS422/485 serial devices to system by
using a USB interface. With data format auto detecting and baud rate auto switching function,
TRP-C08H is able to automatically detect the data flow and switch the direction of the data lines
as well as to automatically configure RS422/485 signals to any baud rate without external switch
setting. Equipped with 3000VDC of isolation and internal surge-protection on each data line,
TRP-C08H give the host computer and module itself entirely protection from destructive voltage
spikes and danger of unregulated voltages input.

TRP-C08H also features a high-speed 115.2 Kb/s transmission rate, and supports various O.S.
The industry standard DIN rail design enables fast and professional extension installation.

1-1. Features

¾ Full compliance with the USB V1.0, 1.1 and 2.0.
¾ Expand to 2 standard RS232 ports and 2 RS422/485 ports.
¾ System gets 4 standard RS232 port when the TRP-C08H converter plug in.
¾ 256 bytes buffer for upstream and downstream data flow.
¾ Auto direction flow control on RS-485.
¾ Automatically switch signal RS422 and RS485.
¾ Support 3000V DC isolation protection in RS422/485 side.
¾ All RS422/485 signals provide surge protection and over current protection.
¾ Power/TXA/RXA/TXB/RXB mode LED indicator.
¾ Direct power from USB port and external power.
¾ Driver support: Windows 98/ME/2000/XP/CE3.0, and Linux, and Mac OS.

1-2. Specification.

¾ Power input voltage: DC +10V to +30V or USB port power support.
¾ Input: USB 1.1 or 2.0 protocol.
¾ Output: Dual Port RS232 signal: RS-232 - TX, RX, RTS, CTS, DTR, DSR, DCD, RI.

RS422 signal: Differential 4 full-duplex wires.
RS485 signal: Differential 2 half-duplex wires.

¾ Cable: USB type A to type B.
¾ Format: Asynchronous data with any combination of bits, parity, stop

Parity type: None, odd, even mark, space.
Stop bits: 1, 1.5, 2; Data bit: 5, 6, 7, 8.

¾ Communication speed: form 1.2K to 115.2Kbps auto-switching.
¾ RS422/485 line protection: Against surge, short circuit, and voltage peak.
¾ Distance: Up to 4000ft (1250M).
¾ Connection type: Screw terminal for maximum AWG 12 wire.
¾ Signal LED: Power on, TX, RX.
¾ Din-Rail mountable: Yes.
¾ External power Supply: Screw terminal, or standard external DC adapter.
¾ External Power consumption: 1.5W.
¾ Internal USB bus power consumption: 220mA
¾ Isolation Voltage: 3000V DC.
¾ Electromagnetic Compatibility: CE.
¾ Operating environment: -20 to 65℃.

¾ Storage temperature: -20 to 65℃.
¾ Dimension: 151mm X 111mm X 26mm.

¾ Weight: 395g.
¾ Humidity: 10-90% non-condensing.

2. Hardware Description

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The following information is provided to give the user an understanding of how to connect the
TRP-C08H to the USB and serial device. A review of the switch settings and the functionality of
the LED’s are also provided.

2-1. Panel layout

2-2. LED Indictor
PWR LED: System is ready.
RXA LED: COM-A Receiving.
TXA LED: COM-A Transmitting.