Nortel Networks 2750 User Manual

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Appendix A  Technical specifications  89
Nortel VPN Router Installation — VPN Router 2750 
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.
 shows the 56/64K CSU/DSU WAN interface card.
Figure 36   
56/64K CSU/DSU WAN interface card
The connector on the 56/64K CSU/DSU WAN interface card accommodates an 
8-pin RJ-48 modular patch cord.
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.
Note: Nortel does not supply an interface cable with the 
 
56/64K CSU/DSU WAN interface card.
56/64K
DDS