Tadiran Telecom Coral IPx 800 Series, Инструкция по установке и справочник по аппаратной части, Страница: 131 / 400

External Connections
5-5
Ext
ernal Eq
uipm
ent
5
5.2
External Equipment
0
Wired Stations
Connections to Coral IPx 800 system station equipment are established by
cross-connecting the station circuit from the appropriate Coral IPx 800 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 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 800 system MDF and the station equipment
should contain at least 2, and preferably 4 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 4 conductors (pins 2, 3, 4, and
5).
Figure 5-3
illustrates typical jack configurations with wire designations for four station
types:
„
2-wire SLT single-line telephones and digital station sets (FlexSet, APDL, CPA,
GKT, DKT, DST, 2-wire DIM, and VDM) 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, or VDM 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. EKT
designations are listed under the wire color in plain text, VDK, 4W-DIM, and TIM
designations are listed in parentheses ( ).
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
Protection Devices on page 5-11
for
protective device specifications.
1 Station Equipment