Tadiran Telecom Coral IPx 500, Installation Manual

Page: 173 / 544

External Connections
5-3
Ext
ernal Eq
uipm
ent
5
5.2
External Equipment
0
Wired Stations
Connections to Coral IPx 500 system station equipment are established by
cross-connecting the station circuit from the appropriate Coral IPx 500 I/O cable punch
block to the corresponding station wiring punch block.
Table 5-1
lists the various station interface cards available for the Coral IPx 500 system,
the type of station equipment that the card supports, and the number of wire pairs
required by the station interface.
Station wiring between the Coral IPx 500 system MDF and the station equipment
should contain at least two, and preferably three wire pairs to ensure adequate wiring
capacity. At the station location, the station wiring should be terminated with a
modular, six position, telephone jack, containing at least four conductors (pins 2, 3, 4,
and 5).
Figure 5-2
illustrates typical jack configurations with wire designations for four station
types:
„
2-wire single-line telephones SLT and digital station sets (FlexSet, APDL, CPA,
GKT, DKT, DST) need only connect Tip [T] and Ring [R] or <UpA> and <UpB> as
shown.
„
FlexSet 280 series or FlexSet APDL units with PEX or PEX+APA, DKT 2000 sets
with PEX or APA; need an extra 2 wires when power is supplied through the line
connector. The polarity of this connection is irrelevant. When using the TPS (single
unit Telephone Power Supply), no additional wires are required.
For peripheral device installation, refer to the Coral Terminal Equipment Installation
Manual ”.
To prevent a potential shock hazard to station users and damage to the system, make
sure that station circuits extended over cables that exit the building are adequately
protected from lightning and surge currents. See
page 5-9, Protection Devices
for
protective device specifications.
1 Station Equipment