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Appendix A Technical specifications 79
Nortel VPN Router Installation — VPN Router 2750
Figure 27 10/100BASE-TX Ethernet connector
Table 19 provides the 10/100BASE-TX Ethernet port pinouts.
Serial port
The system board provides a serial port on the rear of the chassis to enable
out-of-band management. Use the serial port to assign the management IP address
and subnet mask to the newly installed gateway (for more information, see
Chapter 3, “Configuring the management IP interface,” on page 53).
The serial cable that Nortel supplies with the VPN Router 2750 is a DB9/
DB25-to-DB9/DB25 cable. This cable provides a crossover connection
(transmit-to-receive and receive-to-transmit). The DB9 connector goes into the
gateway and the other DB9 or DB25 connector goes into your workstation
(Figure 28 on page 80).
Table 19 10/100BASE-X Ethernet port pinouts
Pin Description
1TD +
2TD -
3 RD +
6 RD -
CS260010A
87654321
RD- RD+ TD- TD+