Electrical specifications, Figure 58 cas+ compliance – Nortel Networks Circuit Card 311 User Manual

Page 272

272

NT5D33 and NT5D34 Lineside E1 Interface cards

Figure 58
CAS+ compliance

Key Benefits of using CAS+ signaling (ELEI mode) over traditional A/B bit
signaling (LEI mode) include:

1. Calling Line ID Presentation (CLIP)

When an incoming call over the TDM/IP network or a CS 1000 originated
call is directed towards the CAS+ compliant system, Calling Line ID can
be provided over the CAS+ interface. This is assuming that the incoming
call has the CLID without any presentation restrictions.

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.

Electrical specifications

Table 112 "LEI card - line interface unit electrical characteristics" (page
273)

provides a technical summary of the E1 line interface.

Table 113 "LEI

card - power required" (page 273)

lists the maximum power consumed

by the card.

E1 channel specifications

Table 112 "LEI card - line interface unit electrical characteristics" (page
273)

provides specifications for the 30 E1 channels. Each characteristic