RAD Data comm ASMi-31 operation manual Appendix D DTE Interface Connectors, Table D-1

Appendix D

DTE Interface Connectors

D.1

General

Table D-1provides detailed information about each DTE interface

connector.

Table D-1

DTE Interface Signal Assignments

RS-232

V.35

EIA-530

X.21

Signal

DB-25

DB-25

34-pin

DB-25

DB-25

DB-15

Description

Function

Stand-

Frame

Standalone

Standalone

Frame

Standalone

alone

and Frame

and

Pin

Circuit/

Frame

Pin

Circuit

Pin

Circuit

(Function)

Protective

1

1

A

Frame

101

1

1

1

-

Chassis ground.

Ground

[SHIELD]

May be

isolated from

Signal Ground.

See Table 2-1.

Signal Ground

7

7

B

Signal

102

7

AB

7

8

-

Common

Ground

[GND]

Signal and DC

power supply

ground.

Transmitted

2

11

S

TD(B)

103

2

BA(A)

2

2

T(A)

Serial digital

Data

9

P

TD(A)

103

14

BA(B)

14

9

T(B)

data from DTE.

[TRANSMIT]

The data

transitions must

occur on the

rising edge of

the transmit

clock.

Received

3

12

R

RD(A)

104

3

BB(A)

3

4

R(A)

Serial digital

Data

13

T

RD(B)

104

16

BB(B)

16

11

R(B)

data at the

[RECEIVE]

output of the

modem

receiver. The

data transitions

occur on the

rising edge of

the receive

clock.

General D-1

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