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Appendix A Technical specifications 87
Nortel VPN Router Installation — VPN Router 2750
1000BASE-T (1000 MT) Ethernet interface card
Use the 1000BASE-T Ethernet interface card to connect to Gigabit Ethernet
interfaces on other devices in your network, as well as to provide increased
throughput. This interface card has a single RJ-45 connector.
Figure 34 shows the 1000BASE-T Ethernet interface card.
Figure 34 1000BASE-T (1000 MT) Ethernet interface card
The port on the 1000BASE-T Ethernet interface card accommodates an RJ-45
straight-through cable. Select cables for this port as follows:
• For 1000BASE-T operation, use Category 5 four-pair Ethernet wiring. The
cable must comply with the TIA 568 wiring specification. Nortel recommends
a maximum length of 100 meters for the cable segment.
• For 100BASE-TX operation, use Category 5 twisted-pair wiring: one pair
each for transmit and receive operations. The cable must comply with the
EIA 568 wiring specification. Nortel recommends a maximum length of 100
meters for the cable segment.
• For 10BASE-T operation, use Category 3, 4, or 5 twisted-pair wiring.
Table 23 provides the 1000BASE-T Ethernet port pinouts.
Table 23 1000BASE-T Ethernet port pinouts
Pin Description
1TP0+
2TP0-
3TP1+
4TP2+
5TP2-
6TP1-
11287EA
10 = OFF
100 = GRN
1000 = ORG
ACT/LNK
Intel PRO
R
CS260010A
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