Electrical Specifications - Nortel Circuit Card Installation Manual

Electrical specifications

E1 channel specifications
NT5D33 and NT5D34 Lineside E1 Interface cards
2 Redirecting Line ID Presentation (RLIP)
When an incoming call over the TDM/IP network or a CS 1000
originated call which has undergone redirections is directed towards the
CAS+ compliant system, Redirecting Line ID can be provided over the
CAS+ interface. This is assuming that the incoming call has the
Redirecting Line ID without any presentation restrictions.
3 Message waiting indication (MWI)
Message waiting indication can be provided over the CAS+ interface.
Table 93 provides a technical summary of the E1 line interface. Table 94 on
page 262 lists the maximum power consumed by the card.
Table 93 provides specifications for the 30 E1 channels. Each characteristic
is set by a dip switch. See "Installation and Configuration" on
a discussion of the corresponding dip switch settings.
Table 93
LEI card — line interface unit electrical characteristics
Characteristics
Framing
Coding
Signaling
Distance to LTU
Description
CRC-4 or FAS, only
AMI or HDB3
Loop or ground start
A/B robbed-bit
0-199.6 meters (0-655 feet)
Circuit Card Description and Installation
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