Black Box RS-232485/422 Converter Plus, RS-232485/422 Opto-Isolator/Converter, IC109C, IC108A XW1B

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RS-232485/422 CONVERTERS

Quick Reference:

User-Selectable Options

Use this list as a quick-reference guide when you need to change the jumper settings.

An asterisk (*) designates the factory-preset jumper settings.

XW1A

DCE*

 

XW1B

DTE

 

W8

A-B*

4-wire

 

B-C

2-wire

W15

A-B*

RTS/CD enabled

 

B-C

Data enabled (Maximum speed is 64K.)

W5

A-B*

RTS/CTS* delay (normal)

 

B-C

RTS/CTS/CD delay (CTS inhibited if CD

 

 

is present when RTS is raised.)

W9 RTS/CTS delay (The time before the RS-485 driver is enabled and

CTS is asserted after RTS is asserted. The RS-485 driver is always enabled.)

A

30 msec

B

10 msec

C*

0 msec

D

ON

W17

When W15 is in the B-C (Data Enabled) position, this is the time

 

the RS-485 driver remains enabled after a low-to-high transition on the

 

DATA line to prevent disabling the driver in the middle of a character.

 

A

70 msec

 

B*

7 msec

 

C

2 msec

 

D

0.7 msec

 

E

0.15 msec

30

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Contents IC109AE FCC and IC RFI Statements RS-232↔485/422 Converters NOM Statement Trademarks Used in this Manual Contents Specifications Specifications Introduction Jumper and Switch Configuration InstallationLayout of the Printed Circuit Board RS-232↔485/422 Converter as DCE XW1A 8-Position Shunt Driver Enabled by Data Point-to-Point DCE/DTE Configuration Function Jumper Requirements RS-232↔485/422 Converters Installation RS-232↔485/422 Converters Simplified Functional Block Diagram DTE Operation DTE Jumper Settings Installation Typical Applications Point-To-Point, 4-Wire Full- or Half-Duplex Multipoint, 4-Wire Half- or Full-Duplex Multipoint, 2-Wire Half-Duplex Sample Multipoint Operation Installation DCE DTE Appendix A. PinningPin Name Description XW1B Quick Reference User-Selectable OptionsQuick Reference USER-SELECTABLE Options Copyright 2002. Black Box Corporation. All rights reserved