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Nortel Networks M3110 User Manual

Page 388

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Appendix C: Meridian Modular Telephones add-on modules installation

553-3001-367 Standard 3.00 August 2005

Use the following procedures to add the Meridian Communications Adapter
(MCA) or Meridian Programmable Data Adapter (MPDA) to the telephone
and to connect it to a terminal or personal computer.

See the Meridian Communications Adapter User Guide for more information
on MCA operation.

108.2

20

DTR

20

H

X

Data terminal ready

21

21

EE

No connection

125

22

RI

22

J

X

Ring indicator

113B

23

SCTEB

23

W

X

Tran sign elemt time B

113A

24

SCTEA

24

U

X

Tran sign elemt time A

25

25

MM

X

**

Table 67
V.35 CCITT signals supported by the MCA (Part 2 of 2)

V.35
CCITT

MCA
DB-25
pin no.

Abbr.

Adaptor cable

Signal

Source

Description

DB-25
Pin No.

V.35
Pin No.

DTE

MCA

Note:

* Pin 1 is connected to the MCDS shelf frame.

** These leads are ignored by the MCA controller.