QVS IC-485S, IC-485SI User Manual
RS-232
-
RS-485
INTERFACE CONVERTER
IC-485S
&
IC-485SI
User’s Manual
@Copyright 1994 ATEN@ International CO., LTD.
Manual part NO.PAPE-0075-200
Printed in Taiwan
06/94
PACKAGE CHECKLIST
When you purchase this product, it should contain the
following elements:
l
IC-485S
l Power Adapter
l IC-485S
or IC-485SI Converter
&
IC-485SI User’s Manual x 1
(DC9V, 200mA)
x 1
x 1
Attention: To prevent electric shock caused by
lightening, you must provide a ground
path by connecting a wire from the
Grounding Tab to the earth ground
(for IC-485SI
only).
FUNCTION OVERVIEW
IC-485S/IC-485SI
TABLE OF CONTENTS
1 FUNCTION OVERVIEW
l-l Introduction
l-2 Specifications.
2 INSTALLATION
2-
1 Installation Procedure.
.......................
.....................
....................
2-2 Switch Function Description
3 OPERATION
.......................
3-l Point-to-Paint/4-Wire Full Duplex
3-2 Point-to-Paint/2-Wire Half Duplex
3-3 Multidrop/4-Wire Full Duplex.
3-4 Multidrop/2-Wire Half Duplex
3-5
Simplex/Transmit,
3-6 Monitoring
4 OTHERS
4-
1 Terminal Block Definition.
4-2 Self Test
(for IC-485s only)
..........................
.........................
APPENDIX A
Trouble Shooting
RS-232
DCE/DTE
.....................
Description
Preventing Radio & TV Interference.
.............
...............
..........
Receive Only.
..........
..........
.....
.....
.......
.......
.....
......
.....
9
10
11
12
13
14
14
15
16
17
18
1 FUNCTION OVERVIEW
l-l INTRODUCTION
1
1
2
3
3
4
6
8
The IC-485S and IC-485SI are a series of a
rectional interface converters for RS-232 and
bi-di-
RS-
485. The IC-485SI has built-in isolators for high
voltage
(2OOOV)
ic-485s & IC-485SI,
protection. With the IC-485 series,
it provides Point-to-Point,
Multidrop and Simplex operations. The IC-485s
provides an extra Monitoring function.
The IC-485 can be powered from the following two
ways:
1)
a DC
9V, 2OOmA
power adapter
2) the pin #9 of the RS-232 connecter
Two slide switches are used to configure its op-
eration mode, contention control, and assignment of
the RS-232. Following figure is the IC-485’s exter-
nal view.
DB-85 Female
Terminal Block
RJ-ll(ICG485S)
GND TAB(G485SI)
Figure l-l External View
User’s Manual
1
IC-485S/IC-485SI
FUNCTION OVERVIEW
INSTALLATION
2 INSTALLATION
IC-485S/IC-485SI
1-2 SPECIFICATIONS
Connector
Function Switch
Enclosure
Weight
Dimensions
RS-485/422:
SWl:DCE,DTE,
SW2:TxON. RxON
SW2:TxRTS,
SW2:TxRTS. RxON
Plastic
60 gm
54x74.5x18.5mm
A 4 terminal block
and RJ-1 l* or
TAB**
selection
RXXrt
Figure l-2 IC-485 Specifications Table
&
* RJ-11 Connector
Monitor mode for
IC-485S only.
* * Grounding TAB for IC-485SI only.
GND
MONITOR*
2-1 INSTALLATION PROCEDURE
Before installing the IC-485 you will need a
wire cable. This cable must go from your location to
the place you want to connect to.
Installation Procedure:
1
Before installing the IC-485 to the PC, decide
one of the 6 possible configurations suitable
for your application. Please check Chapter 3
OPERATION for correct slide switch settings
and phone wires connection, then connect
IC-
485 to the PC.
For IC-485SI: Connect a wire from the
Grounding Tab to the earth
ground.
2.
Turn on PCs.
3.
Insert the adapter’s plug into the POWER
JACK in the right side.
4.
Plug the power adapter into an AC outlet. The
unit is now ready for operation.
4-
2
User’s Manual
User’s Manual
3
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