Quad T1/E1 Csu/Dsu Wan Interface Card; Figure 54 Quad T1/E1 Csu/Dsu Wan Interface Card - Nortel Contivity 5000 Installing

110 Appendix A Technical specifications

Quad T1/E1 CSU/DSU WAN interface card

The quad T1/E1 CSU/DSU WAN interface card has four connectors that provide
the signals needed to interface to T1 or E1 equipment.
T1/E1 CSU/DSU WAN interface card.

Figure 54 Quad T1/E1 CSU/DSU WAN interface card

Each connector on the quad T1/E1 CSU/DSU WAN interface card accommodates
an 8-pin RJ-48 modular patch cord. These cables are commonly sold as Category
5, or Ethernet, cables.
The cables you use should be wired in accordance with EIA-568-A wiring style.
This wiring style ensures that the transmit signal (pins 4 and 5) and the receive
signal (pins 1 and 2) are carried on a twisted pair inside the patch cord. The use of
factory-made patch cords is strongly recommended.
You connect the quad T1/E1 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.
•
•
For information about the cable pinouts for a crossover connection, see
on page
connection, see
315990-D Rev 00
Note: Nortel Networks does not supply cables with the quad T1/E1
CSU/DSU interface card.
For a straight-through connection, you can use a standard Category 5
(Ethernet) straight-through cable.
For a crossover connection, you cannot use a standard Category 5 crossover
cable. The T1/E1 CSU/DSU crossover cable and the Ethernet crossover cable
are not interchangeable.
109. For information about the cable pinouts for a straight-through
Table 30 on page
CS160012A
109.
Figure 54 shows the quad
Table 29