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Rack Installation
3-4 Issue 1 October 1998
How to prepare the site for installation
Location
Checklist
Reference
Document
Installation
Requirements
DEFINITY ECS
Checklist
The maximum length of cable between the Rack
and the DEFINITY ECS is 500 ft (150 meters).
The Rack’s power supply and cabling should be
installed away from high power/high RF noise
devices such as computers, fans, fluorescent ballast,
power supplies, etc.
Use good wiring practices. Do not run wires over
fluorescent lights, computers, air conditioners, etc.
as this can introduce noise to the modems.
The Rack must be installed in a secure location.
Unauthorized access to the Rack could lead to toll
fraud.
Refer to the DEFINITY ECS Communications System
Generic 3, Installation for Single-Carrier Cabinets
manual, document #555-230-894, comcode
#107595423, for further information.
Four 25-pair cables with female connectors for each
Rack
One DCP line for each Model 3100 Switch Card
One analog line for each Model 3100 Switch Card
110-blocks sufficient for the installation
Additional cables sufficient for the DCP and analog
lines.
Install 110-blocks
Connect the DCP lines from the DEFINITY ECS to
the wall-field.
Connect two of the 25-pair cables to the Rack
digital ports (P106 and P108)
Cross-connect the Rack digital ports to the
DEFINITY DCP lines (see Tables 3-2 and 3-3 in
this Chapter)
Connect the analog lines from the PSTN or
DEFINITY ECS to the wall-field.
Connect the two remaining 25-pair cables to the
Rack PSTN ports (P107 and P105).
Cross-connect the Rack PSTN ports to the analog
lines (see Tables 3-4 and 3-5 in this Chapter)