Nortel Networks 553-3001-211 manual Electrical specifications, E1 channel specifications

NT5D33 and NT5D34 Lineside E1 Interface cards Page 249 of 894

2Redirecting 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.

3Message waiting indication (MWI)

Message waiting indication can be provided over the CAS+ interface.

Electrical specifications

Table 88 provides a technical summary of the E1 line interface. Table 89 on page 250 lists the maximum power consumed by the card.

E1 channel specifications

Table 88 provides specifications for the 30 E1 channels. Each characteristic is set by a dip switch. See “Installation and Configuration” on page 251. for a discussion of the corresponding dip switch settings.

Table 88

LEI card — line interface unit electrical characteristics

Characteristics	Description
Framing	CRC-4 or FAS, only
Coding	AMI or HDB3
Signaling	Loop or ground start
	A/B robbed-bit
Distance to LTU	0-199.6 meters (0-655 feet)

Circuit Card Description and Installation