Appendix A Technical specifications 89

56/64K CSU/DSU WAN interface card

The 56/64K CSU/DSU WAN interface card has a single RJ-48 connector that provides the signals needed to interface to network equipment.

Figure 36 shows the 56/64K CSU/DSU WAN interface card.

Figure 36 56/64K CSU/DSU WAN interface card

56/64K

DDS

The connector on the 56/64K CSU/DSU WAN interface card accommodates an 8-pin RJ-48 modular patch cord.

Note: Nortel does not supply an interface cable with the 56/64K CSU/DSU WAN interface card.

Use cable that is wired in accordance with ANSI T1.410 wiring style. This wiring style ensures that a twisted pair inside the patch cord carries the transmit signal (pins 1 and 2) and the receive signal (pins 7 and 8). Nortel strongly recommends that you use professionally manufactured patch cords.

You connect the 56/64K CSU/DSU WAN interface card to the service provider network using a straight-through cable or a crossover cable, depending on how the service provider wired its jack.

Nortel VPN Router Installation — VPN Router 2750

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Nortel Networks 2750 manual Shows the 56/64K CSU/DSU WAN interface card