User`s guide

C. Connectors, Cables, and Pin Assignments
C-6
May 2002 7990-A2-GB20-00
EIA-530-A Port
The EIA-530-A Port interface connector information is shown in Table C-4,
EIA-530-A Port Interface Connector.
Table C-4. EIA-530-A Port Interface Connector
Signal
Circuit
Mnemonic
ITU-T
Number Direction
Pin
Number
Shield ——— 1
Signal Common AB 102A — 7
Signal Common AC 102B — 23
Transmitted Data BA 103 To DSU/CSU 2 (A)
14 (B)
Received Data BB 104 From DSU/CSU 3 (A)
16 (B)
Request to Send CA 105 To DSU/CSU 4 (A)
19 (B)
Clear to Send CB 106 From DSU/CSU 5 (A)
13 (B)
Received Line Signal Detector CF 109 From DSU/CSU 8 (A)
10 (B)
DCE Ready CC 107 From DSU/CSU 6
DTE Ready CD 108/1, /2 To DSU/CSU 20
Transmit Signal Element
Timing (DTE Source)
DA 113 To DSU/CSU 11 (B)
24 (A)
Transmit Signal Element
Timing (DCE Source)
DB 114 From DSU/CSU 12 (B)
15 (A)
Receiver Signal Element
Timing (DCE Source)
DD 115 From DSU/CSU 17 (A)
9 (B)
Local Loopback LL 141 To DSU/CSU 18
Remote Loopback RL 140 To DSU/CSU 21
Test Mode TM 142 From DSU/CSU 25