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X.21bis V.10/V.11 (RS-449) DTE Cable
X.21bis V.10/V.11 (RS-449) DTE Cable
The X.21bis V.10/V.11 (RS-449) DTE cable is used to connect a PCS port with a V.11 DTE interface
to a user device. (See Table A-4.)
Table A-4
PCS Port
25-Pin Male
1
7
10
2
14
3
16
4
23
5
10
6
10
20
7
8
9
15
13
17
12
21
18
25
A-4 Port Concentrator Shelf (PCS) Installation Guide
X.21bis V.10/V.11 (RS449) DTE Cable
User Device
37-Pin Male
1
37
20
4
22
6
24
7
25
9
27
11
29
12
30
13
31
5
23
8
26
14
10
18
Signals
Shield
102A
102B
103A
103B
104A
104B
105A
105B
106
102B
107
102B
108
102A
109A
109B
114A
114B
115A
115B
140
141
142
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