Nortel Networks Nortel Contivity Secure IP Services Gateway 2700 Manual de usuario descargar pdf (Pagina 76)

76 Appendix A Technical specifications

NN46110-311 02.01

System ports

The VPN Router 2700 system board provides the following built-in interfaces:

• 10/100BASE-TX Ethernet LAN port

•serial port

This section provides information about the 10/100BASE-TX Ethernet LAN port

and the serial port on the system board.

10/100BASE-TX Ethernet LAN port

The system board provides one 10/100BASE-TX Ethernet LAN interface on the

rear of the chassis. Use this LAN interface, which accommodates an RJ-45

straight- through cable, for Web management. Depending on whether you use the

interface for 10BASE-T or 100BASE-TX operation, select cables for the interface

as follows:

• 100BASE-TX connections require Category 5 twisted-pair wire. The

100BASE-TX specification supports 100 Mb/s transmission over two pairs of

Category 5 twisted-pair Ethernet wiring: one pair each for transmit and

receive operations.

Nortel recommends a maximum length of 100 meters for the cable segment

between a 100BASE-TX repeater and a workstation (due to signal timing

requirements). This wiring scheme complies with the EIA 568 wiring

standard.

• 10BASE-T connections can use Category 3, 4, or 5 twisted-pair wiring.

Figure 27 shows the 10/100BASE-TX connector and the connector pinouts.

Operating altitude 7000 ft (2133.6 m) maximum

Storage altitude 40,000 ft (12,192 m) maximum

Table 18 Physical, electrical, and environmental specifications (continued)

Specification Description

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 ... 107 108

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Nortel Networks Nortel Contivity Secure IP Services Gateway 2700 Manual de usuario Pagina 76