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Modem cable specifications
If you need to connect a modem to a VPN Router 600, you must obtain an
appropriate modem cable. The modem cable must have a 9-pin D-sub plug that
connects to the VPN Router 600 serial port and a 25-pin D-sub plug that connects
to the RS-232-C modem port
Figure 22 Modem cable (9-pin D-sub plug to RS-232-C modem plug)
Pin 5
Pin 9
9-position D-sub receptacle with screw locks
(ground shield connected to backshell)
Table 16
Table 16 Modem cable pinouts
Nortel termination
Signal
Data Carrier Detect
Transmit Data (TXD)
Receive Data (RXD)
Data Set Ready
Data Terminal Ready
Clear to Send
Request to Send
10 ft
(3.05 m)
Pin 1
Pin 6
provides the modem cable pinouts.
Appendix A Technical specifications 75
(Figure
22).
Pin 1
Pin 14
25-position D-sub plug with screw locks
(ground shield connected to backshell)
Modem termination
Pin # to Pin #
Signal
1
8
Data Carrier Detect
2
2
Transmit Data (TXD)
3
3
Receive Data (RXD)
4
6
Data Set Ready
6
20
Data Terminal Ready
7
5
Clear to Send
8
4
Request to Send
Nortel VPN Router Installation — VPN Router 600
Pin 13
Pin 25
CAB0056A
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