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EIA-530-A Port Interface Connector
The EIA-530-A Port interface connector information is shown in Table D-2.
3166-A2-GB20-20
Table D-2. EIA-530-A Port Interface Connector
Circuit
Signal
Mnemonic
Shield
—
Signal Common
AB
Signal Common
AC
Transmitted Data
BA
Received Data
BB
Request-to-Send
CA
Clear-to-Send
CB
Received Line
CF
Signal Detector
DCE Ready
CC
DTE Ready
CD
Transmit Signal
DA
Element Timing
(DTE Source)
Transmit Signal
DB
Element Timing
(DCE Source)
Receiver Signal
DD
Element Timing
(DCE Source)
Local Loopback
LL
Remote
RL
Loopback
Test Mode
TM
March 1999
CCITT
Direction
Number
—
—
102A
—
102B
—
103
To DSU/CSU
104
From DSU/CSU
105
To DSU/CSU
106
From DSU/CSU
109
From DSU/CSU
107
From DSU/CSU
108/1, /2
To DSU/CSU
113
To DSU/CSU
114
From DSU/CSU
115
From DSU/CSU
141
To DSU/CSU
140
To DSU/CSU
142
From DSU/CSU
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-3
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