Model 9788 csu/dsu data port connector – Paradyne 9788 User Manual
Page 312
E. Connectors, Cables, and Pin Assignments
E-8
December
2002
9700-A2-GB20-20
Model 9788 CSU/DSU Data Port Connector
Table E-6, Model 9788 CSU/DSU Data Port Connector
, provides the pin
assignments for the 25-position EIA-530-A connector to the DTE.
This does not apply to the router.
Table E-6.
Model 9788 CSU/DSU Data Port Connector
Signal
Circuit
Mnemonic
ITU-T
Number
Direction
Pin
Shield
—
—
—
1
Signal Common
AB
102A
—
7
Signal Common
AC
102B
—
23
Transmitted Data
BA
103
To CSU/DSU
2 (A)
14 (B)
Received Data
BB
104
From CSU/DSU
3 (A)
16 (B)
Request to Send
CA
105
To CSU/DSU
4 (A)
19 (B)
Clear to Send
CB
106
From CSU/DSU
5 (A)
13 (B)
Received Line Signal Detector
CF
109
From CSU/DSU
8 (A)
10 (B)
DCE Ready
CC
107
From CSU/DSU
6
DTE Ready
CD
108/1, /2
To CSU/DSU
20
Transmit Signal Element
Timing (DTE Source)
DA
113
To CSU/DSU
11 (B)
24 (A)
Transmit Signal Element
Timing (DCE Source)
DB
114
From CSU/DSU
12 (B)
15 (A)
Receiver Signal Element
Timing (DCE Source)
DD
115
From CSU/DSU
17 (A)
9 (B)
Local Loopback
LL
141
To CSU/DSU
18
Remote Loopback
RL
140
To CSU/DSU
21
Test Mode
TM
142
From CSU/DSU
25