RAD Data comm ASMi-52 manual 35, X.21 and RS-530 Connector Pinouts

Appendix A Interface Connector SpecificationsInstallation and Operation Manual

Table A-1.

V.35, X.21 and RS-530 Connector Pinouts (Cont.)

Signal

V.35

RS-530

X.21

Description

Function

34-Pin

DB-25

DB-15

Pin

Circuit

Pin

Circuit

Pin

Circuit

(Function)

Data Set

E

DSR 107

6

CC(A)

A positive level from ASMi-52

Ready

22

CC(B)

when power is on, and ASMi-52

is (a) not in DIGITAL LOOP

mode, or (b) has not received a

REMOTE LOOPBACK signal

from the remote unit.

Data

H

DTR 108

20

CD(A)

Not used

Terminal

23

CD(B)

Ready

Carrier

F

DCD 109

8

CF(A)

5

I(A)

A positive level from ASMi-52,

Detect

10

CF(B)

12

I(B)

except when a loss of the

received signal is detected or

(Indication)

when Data Set Ready is

negative.

External

U

SCTE(A) 113

24

DA(A)

7

(A)

A serial data rate clock input

Transmit

W

SCTE(B) 113

11

DA(B)

14

(B)

from the data source. Positive

Clock

clock translations must

correspond to data

transmissions.

Transmit

Y

SCT(A) 114

15

DB(A)

6

S(A)

A transmit data rate clock for

Clock

a

SCT(B) 114

12

DB(B)

13

S(B)

use by an external data source.

Positive clock translations

(Signal

correspond to data translations.

Timing)

Receive

V

SCR(A)

17

DD(A)

A receive data rate clock output

Clock

X

115

9

DD(B)

used by an external data sink.

SCR(B)

Positive clock translations

115

correspond to data translations.

Local Analog

L and j

18

LL

A control signal input, which,

Loop

when on, sets ASMi-52 into

Local Analog Loopback (V.54

Loop 3).

Remote

N and h

21

RL

A control signal input which,

Digital Loop

when on, commands

ASMi-52 to send a remote

Loopback command (V.54 Loop

2) to the remote ASMi-52.

Test

n and k

25

TM

A Control Signal output from

Indicator

ASMi-52; positive during any

test mode.

A-2 DTE Interface Connectors ASMi-52 Ver. 2.5