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FSIP Port Adapters, Interface Cables, and Connections
Table 5
DTE Cable
FSIP End,
1
HD
60-Position
Plug
Signal
Shield ground
TxD/RxD+
TxD/RxD–
RTS/CTS+
RTS/CTS –
RxD/TxD+
RxD/TxD–
CTS/RTS+
CTS/RTS –
RxC/TxCE+
RxC/TxCE–
Circuit ground
Ground
Mode_2
Ground
Mode_DCE
1. HD = high density.
26 Fast Serial Interface Processor (FSIP) Installation and Configuration
X.21 Adapter Cable Signals
Network
End,
DB-15 Plug
Pin
Pin
Signal
46
1
Shield ground
11
—>
2
Transmit+
12
—>
9
Transmit–
9
—>
3
Control+
10
—>
10
Control–
28
<—
4
Receive+
27
<—
11
Receive–
1
<—
5
Indication+
2
<—
12
Indication–
26
<—
6
Timing+
25
<—
13
Timing–
15
8
Circuit ground
48
Shorting
47
group
51
Shorting
52
group
DCE Cable
FSIP End, HD
60-Position
Plug
Signal
Pin
Shield ground
46
RxD/TxD+
28
<—
RxD/TxD–
27
<—
CTS/RTS+
1
<—
CTS/RTS –
2
<—
TxD/RxD+
11
—>
TxD/RxD–
12
—>
RTS/CTS+
9
—>
RTS/CTS–
10
—>
TxC/RxC+
24
—>
TxC/RxC –
23
—>
Circuit ground
15
Ground
48
Mode_2
47
Ground
51
Mode_DCE
52
Network End,
DB-15
Receptacle
Pin
Signal
1
Shield ground
2
Transmit+
9
Transmit–
3
Control+
10
Control–
4
Receive+
11
Receive–
5
Indication+
12
Indication–
6
Timing+
13
Timing–
8
Circuit ground
Shorting
group
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