Nortel Networks 1000 User Manual
Page 17

17
.
Overview
Contents
This section contains information on the following topics:
“Analog line interface units” (page 26)
“Digital line interface units” (page 28)
“Analog line call operation” (page 30)
“Digital line call operation” (page 34)
“Lineside T1 and E1 call operation” (page 34)
“Voice frequency audio level” (page 43)
“Off-premise line protection” (page 43)
“Line protection grounding” (page 44)
“Line and telephone components” (page 44)
“Host interface bus” (page 48)
“Trunk interface unit” (page 53)
“Serial Data Interface (SDI) cards” (page 55)
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.