Nortel Networks 2750 manual T1/E1 CSU/DSU WAN interface card

94 Appendix A Technical specifications

T1/E1 CSU/DSU WAN interface card

The T1/E1 CSU/DSU WAN interface card has a single connector that provides the signals needed to interface to T1 or E1 equipment. This interface card ships as a half-height card and as a full-height card.

Figure 39 shows the T1/E1 CSU/DSU WAN interface card (half-height card).

Figure 39 T1/E1 CSU/DSU WAN interface card (half-height card)

Note: For E1 service, you must install the half-height version of the T1/E1 CSU/DSU WAN interface card.

Figure 40 shows the T1/E1 CSU/DSU WAN interface card (full-height card).

Figure 40 T1/E1 CSU/DSU WAN interface card (full-height card)

CS160012A

The connector on the T1/E1 CSU/DSU WAN interface accommodates an 8-pin RJ-48 modular patch cord. These cables are commonly sold as Category 5, or Ethernet, cables.

Note: Nortel does not supply the T1/E1 CSU/DSU WAN interface cable with the WAN interface card.

Use cable that is wired in accordance with EIA-568-A wiring style. This wiring style ensures that a twisted pair inside the patch cord carries the transmit signal (pins 4 and 5) and the receive signal (pins 1 and 2). Nortel strongly recommends that you use professionally manufactured patch cords.

NN46110-318 02.01