operation manual - Decision
Operations Manual
RS232 to RS422 isolator box
INDUSTRIAL DIN RAIL RS232
TO RS422 ISOLATOR
Operations Manual
CHAPTERS
1.
2.
3.
4.
OPERATION MANUAL
RS232 to RS422 isolator box
Introduction………………………………………..
Unpacking Information……………………………
Hardware Installation…………….………………..
Hardware Configuration……………………………
APPENDICES
A. Warranty Information …………………………..
B. Data Sheet…………………………………………
DECISION
Computer International Co., Ltd.
DECISION Computer International
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DECISION Computer International
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Operations Manual
RS232 to RS422 isolator box
Operations Manual
CHAPTER 1
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INTRODUCTION
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The industrial RS232 to RS422 photo isolator provides bi-direction
RS232 signals to RS422 signals conversion features, which are
used to expand long haul communication distance for RS422
communication. The industrial RS232 to RS422 photo isolator
allows the input signals to be completely prevent up to 5000Vrms,
which offers customers a unique combination of protection, speed,
and versatility for DIN-rail mount industrial data communications
applications. There are 3 LED indicators correspond to Tx, Rx, and
power signals. A 250mA, 24 VDC power input for industrial
standard.
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RS232 to RS422 isolator box
Life expectancy for relay: 100 million operations at signal
level load.
Allow the photo input signals to be completely floated and
prevent the ground loops.
Operating temperature from 0C° to 70C°.
The features of the industrial RS232 to RS422 photo isolator
are:
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EIA RS232 to EIA RS422 isolator input and output.
Heavy-duty optical couplers and a transformer isolated DCto-DC converter to provide significantly higher electrical
isolation - 5000V DC surge (1 minute), 5000V rms
continuous.
Support Tx, Rx, RTS, CTS, DTR, DSR, SG signals for
RS232, and Tx+, Tx-, Rx+, Rx-, SG signals for RS422.
Communication speeds up to 230 K bps.
Transmit distance up to 4000ft.
Three LED indicators correspond to Tx(green), Rx(yellow),
and power(red) signals.
A 250mA, 24 VDC (range from 21.6 to 26.4) power input
for industrial standard.
Provides Din Rail mountable package which uses Polyamide
UL94(V0) material, and its types are TS-35, TS-32.
DECISION Computer International
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DECISION Computer International
Operations Manual
RS232 to RS422 isolator box
Operations Manual
CHAPTER 2
RS232 to RS422 isolator box
CHAPTER 3
UNPACKING INFORMATION
HARDWARE CONFIGURATION
Check that your industrial RS232 to RS422 photo isolator
package includes the following items:
The industrial RS232 to RS422 photo isolator are shown is the
following
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Industrial RS232 to RS422 photo isolator.
DB9 or DB25 (option) Fmale expansion cable.
Shield cable.
User manual.
Warranty form.
DECISION Computer International
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DECISION Computer International
Operations Manual
RS232 to RS422 isolator box
Operations Manual
RS232 to RS422 isolator box
2. DB25 Connector Assignments for RS232
The communication interface follows the EIA RS232 standard. The
signal assignments for a standard Data Terminal Equipment (DTE)
DB25 connector are shown below:
.
1. Signal Assignment for Isolator Box
The signal assignment for isolator box is defined as following.
Consider the top view of isolator box, there are 15 signals are
defined as:
Transmit Data
Clear To Send
Signal Ground1
Data Terminal Ready
Receive Data
Request To Send
Data Set Ready
0V
24V
Pin
#
DB25
Signal Name
RS232C
Name
Signal
color
Direction
Shield Ground
Receive Data+
Receive Data-
Signal Ground2
Transmit Data+
Transmit Data-
Please note that the DTR and DSR signals are short by internal
circuit of the box.
DECISION Computer International
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Transmit Data(TxD)
Receive Data(RxD)
Request to Send(RTS)
Clear to Send(CTS)
Data Set Ready(DSR)
Signal Ground(SG)
BA
BB
CA
CB
CC
AB
DECISION Computer International
Output
Input
Output
Input
Input
Common
brown
Red
blue
yellow
green
black
Operations Manual
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Data Terminal
Ready(DTR)
RS232 to RS422 isolator box
CD
purple
Operations Manual
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RS232 to RS422 isolator box
Clear to Send(CTS)
CB
Input
Yellow
Output
3. DB9 Connector Assignments for RS232
4. DB25 Connector Assignments for RS422
The signal assignments for a standard Data Terminal Equipment
(DTE) DB9 connector are shown below:
The communication interface follows the EIA RS422 standard. The
signal assignments for a standard DB25 connector are shown below:
Pin
Pin
#
DB9
Signal Name
Signal
RS232C
2
3
6
7
20
color
4
5
6
7
Receive Data(RxD)
Transmit Data(TxD)
Data Terminal
Ready(DTR)
Signal Ground(SG)
Data Set Ready(DSR)
Request to Send(RTS)
Transmit Data+(TxD+)
Receive Data+(RxD+)
Receive Data-(RxD-)
Signal Ground(SG)
Transmit Data-(TxD-)
brown
Red
green
black
purple
The communication interface follows the EIA RS422 standard. The
signal assignments for a standard DB9 connector are shown below:
BB
Input
BA
Output
red
brown
purple
CD
Output
AB
CC
Common
Input
CA
Output
black
DECISION Computer International
color
5. DB9 Connector Assignments for RS422
Direction
Name
2
3
Description
Pin
2
3
4
5
6
Description
color
Receive Data+(RxD+)
Transmit Data+(TxD+)
Transmit Data-(TxD-)
Signal Ground(SG)
Receive Data-(RxD-)
red
brown
purple
black
green
green
Blue
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Operations Manual
RS232 to RS422 isolator box
APPENDIX A
APPLICATIONS
WARRANTY INFORMATION
RS232 to RS422 photo isolator
TXD+
TXDRXD+
RXDSG
GND
Device
RXD+
RXDTXD+
TXDSG
GND
Each piece of RS232 to RS422 isolator package permits user to use
only on a single computer, a registered user may use the program on
a different computer, but may not use the program on more than one
computer at the same time.
2. For Long Haul Distance Communication
RS232 to RS422 photo isolator
RS232 to RS422 photo isolator
RXD+
RXDTXD+
TXD-
Corporate licensing agreements allow duplication and distribution of
specific number of copies within the licensed institution.
Duplication of multiple copies is not allowed except through
execution of a licensing agreement. Welcome call for details.
A.2 Warranty Information
DECISION warrants that for a period of one year from the date of
purchase (unless otherwise specified in the warranty card) that the
goods supplied will perform according to the specifications defined
in the user manual. Furthermore that the RS232 to RS422 isolator
product will be supplied free from defects in materials and
workmanship and be fully functional under normal usage.
SG
GND
DECISION Computer International
A.1 Copyright
Copyright
2002,
2003
DECISION
COMPUTER
INTERNATIONAL CO., LTD. All rights reserved. No part of
RS232 to RS422 isolator may be reproduced, transmitted,
transcribed, or translated into any language or computer language, in
any form or by any means, electronic, mechanical, magnetic, optical,
chemical, manual, or otherwise, without the prior written permission
of DECISION COMPUTER INTERNATIONAL CO., LTD.
1. Connect to RS422 Device
SG
GND
RS232 to RS422 isolator box
CHAPTER 4
The applications of industrial RS232 to RS422 photo isolator are
shown is the following:
TXD+
TXDRXD+
RXD-
Operations Manual
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Operations Manual
RS232 to RS422 isolator box
In the event of the failure of an RS232 to RS422 isolator product
within the specified warranty period, DECISION will, at its option,
replace or repair the item at no additional charge. This limited
warranty does not cover damage resulting from incorrect use,
electrical interference, accident, or modification of the product.
All goods returned for warranty repair must have the serial number
intact. Goods without serial numbers attached will not be covered
by the warranty.
Transportation costs for goods returned must be paid by the
purchaser. Repaired goods will be dispatched at the expense of
RS232 to RS232 isolator.
To ensure that your RS232 to RS422 isolator product is covered by
the warranty provisions, it is necessary that you return the Warranty
card.
Under this Limited Warranty, DECISION's obligations will be
limited to repair or replacement only, of goods found to be defective
as specified above during the warranty period. DECISION is not
liable to the purchaser for any damages or losses of any kind,
through the use of, or inability to use, the RS232 to RS422 isolator
product.
DECISION reserves the right to determine what constitutes
warranty repair or replacement.
Return Authorization: It is necessary that any returned goods are
clearly marked with an RA number that has been issued by
DECISION. Goods returned without this authorization will not be
attended to.
DECISION Computer International
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