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Appendix A Technical specifications 45
Nortel VPN Router Installation — VPN Router 1010/1050/1100
External modem adapter
If you need to connect a VPN Router 1010, 1050, or 1100 to a modem, you can
order a null modem adapter from Nortel. With this adapter, you can connect the
VPN Router 1010/1050/1100 console cable (shipped with the gateway) to an
RS-232-C modem port.
To ensure correct dial-in and dial-out operation, configure the modem with the
settings verbal result codes and display result codes. For more information, see
the modem documentation.
The cable adapter has a DB9 connector that connects to the serial cable and a
DB-25 connector that connects to the modem (Figure 16).
Figure 16 Serial cable adapter for connection to modem (DB9-to-DB25)
Table 16 provides the null modem adapter cable pinouts.
Caution: Risk of EMI
Use only the serial cable shipped with the VPN Router 1010, 1050, or
1100 and this modem adapter to connect a modem to the VPN Router
1010, 1050, or 1100. Other cables and adapters cannot provide adequate
shielding for EMI regulatory compliance.
Table 16 Null modem adapter cable pinouts
DB9
termination
DB25
termination
Pin # to Pin #
22
33
Pin 1 Pin 5
CAB0113A
Pin 6 Pin 9 Pin 14 Pin 25
Pin 1 Pin 13