578 NT8D14 Universal Trunkcard
•provides software selected balance impedance (600 ohm or complex
impedance network) on a per unit basis
•interfaces eight PCM signals to one DS-30X timeslot in A10 format
•transmits and receives SSD signaling messages over a DS-30X
signaling channel in A10 format
•supports PCM signal loopback to DS-30X for diagnostic purposes.
Figure 145 "Universal trunk card - block diagram" (page 579) shows a block
diagram of the major functions contained on the universal trunk card. Each
of these functions are described on the following pages.
Figure 145 "Universal trunk card - block diagram" (page 579) shows a block
diagram of the major functions contained on the NT8D14 Universal Trunk
Card. Each of these functions is described on the following pages.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright© 2003-2008, Nor tel Networks
.