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EIA-530A DB25 Port Interface
Connector
The EIA-530A Port Interface connector information is
shown in Table D-7 and Figure D-7.
Signal
Shield
Signal Common
Signal Common
Transmitted Data
Received Data
Request-to-Send
Clear-to-Send
Received Line Signal Detector
DCE Ready
DTE Ready
Transmit Signal Element Timing (DTE Source)
Transmit Signal Element Timing (DCE Source)
Receiver Signal Element Timing (DCE Source)
Local Loopback
Remote Loopback
Test Mode
3160-A2-GB22-10
Table D-7
EIA-530A Port Interface Connector
Circuit
Mnemonic
—
AB
AC
BA
BB
CA
CB
CF
CC
CD
DA
DB
DD
LL
RL
TM
December 1996
CCITT
Direction
Number
—
—
102A
—
102B
—
103
To DCE
104
From DCE
105
To DCE
106
From DCE
109
From DCE
107
From DCE
108/1, /2
To DCE
113
To DCE
114
From DCE
115
From DCE
141
To DCE
140
To DCE
142
From DCE
Pin Assignments
Pin
1
7
23
2 (A)
14 (B)
3 (A)
16(B)
4 (A)
19 (B)
5 (A)
13 (B)
8 (A)
10 (B)
6
20
11 (B)
24 (A)
12 (B)
15 (A)
17 (A)
9 (B)
18
21
25
D-9
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