Eia-530a port interface connector, Port interfaces, Eia-530a db25 port interface connector – Paradyne COMSPHERE 3000 User Manual
Page 104
Models 3151/3161 Interface Connections
B-11
3000-A2-GA31-80
December 1994
Port Interfaces
The port interface connectors (Model 3161 only)
include the EIA-530A DB25 connector. The V.35
connector and the RS449 connector require an adapter
cable.
EIA-530A DB25 Port Interface Connector
The EIA-530A Port Interface connector information is
shown in Table B-5 and Figure B-9.
Table B-5
EIA-530A Port Interface Connector
Signal
Circuit
Mnemonic
CCITT
Number
Direction
Pin
Signal Common
AB
102A
7
Signal Common
AC
102B
22, 23
Transmitted Data
BA
103
To DCE
2 (A)
14 (B)
Received Data
BB
104
From DCE
3 (A)
16 (B)
Request to Send
CA
105
To DCE
4 (A)
19 (B)
Clear to Send
CB
106
From DCE
5 (A)
13 (B)
Received Line Signal Detector
CF
109
From DCE
8 (A)
10 (B)
DCE Ready
CC
107
From DCE
6
DTE Ready
CD
108/1, /2
To DCE
20
Transmit Signal Element Timing
(DTE Source)
DA
113
To DCE
11 (A)
24 (B)
Transmit Signal Element Timing
(DCE Source)
DB
114
From DCE
12 (A)
15 (B)
Receiver Signal Element
Timing (DCE Source)
DD
115
From DCE
17 (A)
9 (B)
Local Loopback
LL
141
To DCE
18
Remote Loopback
RL
140
To DCE
21
Test Mode
TM
142
From DCE
25