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Pin Assignments
D-73170-A2-GB20-20 December 1996
EIA 530A Port
Interface Connector
The EIA 530A Port Interface DB25 connector
information is shown in Table D-5.
Table D-5
EIA 530A Port Interface DB25 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