Black Box IC108C, IC109C, IC109AE, IC109A-R2, IC108AE manual Appendix A. Pinning, Dce Dte

Page 29

RS-232485/422 CONVERTERS

Appendix A. Pinning

Table 3. RS-232 interface

(* denotes pins that are used).

Pin

Circuit

Description

Signal Type

Direction

 

 

 

 

 

when configured as

 

 

 

 

DCE

 

DTE

 

 

 

 

 

 

 

1*

AA

Protective Ground

Ground

-

 

 

 

 

 

 

 

 

 

2*

BA

Transmitted Data

Data

Input

 

Output

 

 

 

 

 

 

 

3*

BB

Receive Data

Data

Output

 

Input

 

 

 

 

 

 

 

4*

CA

Request to Send

Control

Input

 

Output

 

 

 

 

 

 

 

5*

CB

Clear to Send

Control

Output

 

Not connected

 

 

 

 

 

 

 

6*

CC

Data Set Ready

Control

Output

 

Not connected

 

 

 

 

(held

 

 

 

 

 

 

high)

 

 

 

 

 

 

 

 

 

7*

AB

Signal Ground

Ground

-

 

 

 

 

 

 

 

 

 

8*

CF

Data Carrier Detect

Control

Output

 

Input

 

 

 

 

 

 

 

NOTE

Pins 9 through 25 are not used.

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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