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Pin Assignments
D-93160-A2-GB22-10 December 1996
EIA-530A DB25 Port Interface
Connector
The EIA-530A Port Interface connector information is
shown in Table D-7 and Figure D-7.
Table D-7
EIA-530A 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 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 (B)
24 (A)
Transmit Signal Element Timing (DCE Source) DB 114 From DCE 12 (B)
15 (A)
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