T1/E1 Csu/Dsu Wan Interface Card; Figure 20 T1/E1 Csu/Dsu Wan Interface Card - Nortel 1010 Series Installing

44 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.
CSU/DSU WAN interface card. This interface card ships as a half-height card and
as a full-height card.

Figure 20 T1/E1 CSU/DSU WAN interface card

The connector on the 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. Nortel Networks does not supply an interface cable with the
the T1/E1 CSU/DSU WAN interface card.
The cable 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 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.
•
•
314961-E Rev 00
Note: The brackets of the half-height and full-height cards are almost
identical. For E1 service, you must install the half-height version of the
T1/E1 CSU/DSU WAN 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.
Figure 20 shows the T1/E1
CS160012A