Nortel Networks 1750 manual Serial port

Appendix A Technical specifications 71

Figure 17 10/100BASE-TX Ethernet connector

87654321

RD- RD+ TD- TD+

CS260010A

The following table provides the 10/100BASE-TX Ethernet port pinouts.

Table 18 10/100BASE-TX Ethernet port pinouts

Pin	Description
1	TD +
2	TD -
3	RD +
6	RD -

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 4, “Management IP interface configuration,” on page 61.

The serial cable is a DB9/DB25-to-DB9/DB25 cable. This cable provides a crossover connection (transmit-to-receive and receive-to-transmit). The DB9 connector connects to the gateway, and the other DB9 or DB25 connector connects to the workstation. “Modem cable (9-pinD-sub plug to RS-232-C modem plug)” on page 72 shows the serial cable ends.

Nortel VPN Router Installation — VPN Router 1750