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D-8
3162-A2-GB20-40August 2000
EIA-530-A Port Interface Connector
The EIA-530-A Port interface connector information is shown in Table D-4.
Table D-4. EIA-530-A Port Interface Connector
Signal
Circuit
Mnemonic
CCITT
Number
Direction Pin
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