Rs-366 Pin Assignments; Appendix B: Rs-366 Interface - Avaya 6424D+M User Manual

DEFINITY Communications System
DEFINITY High Speed Link
User´s Guide

Appendix B: RS-366 Interface

Pin No.
2 DPR
3 ACR
4 CRQ
5 PND
6 PWI
7 SG
8
12
13 COS
14 NB1
15 NB2
16 NB4
17 NB8
20
22 DLO
This appendix contains the circuits provided on the 25-pin
interface for RS-366 automatic calling operation. The operation of
this interface is in agreement with the Electronics Industries
Association (EIA) Standard RS-366 ''Interface Between Data
Terminal Equipment and Automatic Calling Equipment for Data
Communication.''
TABLE B-1

RS-366 Pin Assignments

Circuit
Digit Present
Abandon Call and Retry
Call Request
Present Next Digit
Power Indication
Signal Ground
Not used (output always OFF)
Not used (output always OFF)
Call Origination Status
Digit Signal Circuit (Low Order Bit)
Digit Signal Circuit (Second Order Bit)
Digit Signal Circuit (Third Order Bit)
Digit Signal Circuit (High Order Bit)
Not used (input ignored)
Data Line Occupied)
Description
Appendix B: RS-366 Interface
Page B-1
Termination
Receiver
Driver
Receiver
Driver
Driver
Common
Driver
Driver
Driver
Receiver
Receiver
Receiver
Receiver
Receiver
Driver