65
Figure A-1. Typical sub-channel cable wiring.
1
2
3
5
6
7
4
8
20
RTS
TD
RD
CTS
SIGNAL GND
DCD
DTR
STRAIGHT-THRU
(PORT) CABLE
TYPICAL
DTE
CONNECTOR
SUB-CHANNEL
CONNECTOR
CHASSIS GND
1
2
3
5
7
8
2
4
6
1
2
3
5
7
8
2
4
6
1
3
2
5
20
7
8
4
6
NOT
CONNECTED
CROSS-OVER
CABLE
TYPICAL
MODEM
CONNECTOR
1
2
3
5
7
8
2
4
6
DB-25
PIN-OUT
RJ-45
PIN-OUT
DSR
(1)
(5)
(3)
(8)
(7)
(4)
(6)
(2)
-
APPENDIX A: Interface Pinouts