Ds0 Cross-Connections; Establishing Cross-Connections From The Cit - Lucent Technologies SLC ConnectReach User & Service Manual

®
Provisioning the SLC -2000 RT/HDT

DS0 Cross-Connections

DS0 Cross-Connections
Establishing Cross-Connections from the
CIT
Introduction
*Trademark of VINA Technologies, Inc.
6-12 Issue 4 June 2002
The SLC ConnectReach system provides up to 24 DS0s for a variety of
voice-grade and data services. Most voice-grade services interface with the SLC
ConnectReach system through either a current feed or current sink circuit card.
The DS0s containing the voice-grade services interface with the SLC-2000
RT/HDT through the network T1/DSX-1 port. At the RT/HDT, the time slot
interchange (TSI) provides a digital cross-connect system (DCS)-type capability
that allows these DS0s configured for switched telephony to be mapped through a
TR-303 or TR-08 local digital switch (LDS) interface using the ENT-CRS-T0
command at the craft interface terminal (CIT). The voice-grade services include
the following:
Analog voice frequency (VF) POTS Service
3
Locally switched special services
3
Services provided with the BOX
3
Direct Inward Dialing (DID) services to a private branch exchange
3
(PBX)
Analog trunk groups using the LCR
3
The following is a list of the voice-grade circuit cards in the SLC ConnectReach
system:
SPQ443 channel unit — This circuit card is associated with the correct
3
D-bank signaling for a digital PBX or key system connected to the SLC
ConnectReach system through the secondary/fractional T1/DSX-1 port.
Using the RT/HDT CIT, the DS0s supported by this channel unit emulation
are normally cross-connected to the trunk side of an LDS interface.
SPQ456 channel unit: This circuit card is associated with current sink
3
service for DID applications, services provided by the LCR feature using
analog circuits or trunk groups, and services provided by the BOX feature
on inward bound trunks.
SPQ440(C,D) channel unit: This circuit card is associated with analog
3
voice service to the secondary/fractional T1/DSX-1 port and current feed
VF-type service such as POTS and services provided by the BOX feature.
Using the RT/HDT CIT, the DS0s supported by this channel unit emulation
are normally cross-connected to a TR08 or TR-303 interface.
*
Feature
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feature.
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