GAI-Tronics ITR1000A User And Installation Manual - page 16
Installation
ITR1000A Basic Tone Remote Desk Set
01/05
12
Equipment Required
Test Equipment
•
RF service monitor
•
AC voltmeter with dB ranges for measuring audio levels
•
#1 Phillips screwdriver
•
1/8-inch flat blade screwdriver
Documentation
•
base station’s tone remote adapter manual
•
these installation instructions
Cable Installation Safety Considerations
Interconnecting, communications, and Class 2 dc power cables should be separated from electrical light
or other Class I circuits by at least 2 inches. The exception is where Class I wiring or power circuits are
run in a raceway, or are metal-sheathed or metal-clad, or are permanently separately from the conductors
of the other circuitry by a continuous and firmly fixed nonconductor such as porcelain tubes or flexible
tubing in addition to the insulation on the wire. Communications cables and in-building wiring should be
listed and marked for the purpose according to NEC Article 800.
Telephone Line Lightning and Over-voltage Protection
The ITR1000A Basic Tone Remote Desk Set has an over-current phone line fuse (F2) which protects
against occasional extreme fault conditions that may get past the primary protectors. An example of such
a fault condition is a power line cross. If the fuse requires replacement, replace F2 only with the same
type Bussmann C515S 1.25A fuse.
For maximum surge and lightning protection, building primary (over-voltage) protectors should be
installed at the point where the telephone lines enter the radio equipment building. Primary protectors are
usually required by local codes and should be provided by your leased line provider.
Power Connections
Power is applied to the ITR1000A from the provided ac wall transformer that is supplied with the unit.
Power is applied to TS1-6(+) and TS1-5(-).
Line Connections
To make the required line connections, a cable with a tinned bare leads stripped to about 3/8-inch or pin
terminal is necessary. With the housing opened, route the lines through the slot in the housing bottom.
Using a small slotted screwdriver, connect the 2-wire line to the TS1 terminal block position on the main
circuit board labeled
L1
.
Several desk sets can be connected in parallel. The maximum loss between any two desk sets, or between
a desk set and the station, should not exceed 20 dB. Desk sets are shipped with line termination enabled.
With parallel units connected, only the farthest desk set unit should be terminated. Setting SWA-6 to off
enables line termination; setting SWA-6 to on disables line termination. Refer to SWA Switch Settings
Table in the Description section of this manual.