Installation Instructions
Installing Multiple Carriers  Model 117A4 Carrier Installation Instructions
Model 117A4 Carrier Installation Instructions 
503-801-180
Issue 2  February 1999 23
4
Verify the POWER and PASS LEDs on each radio module are lit. If a radio 
module’s PA SS  LED does not light, power down the carrier and the module, wait 
15 seconds, and repower the module and then the carrier.
Note:
The RADIO LED also may light upon installation; however, since the 
RADIO LED has no significance during installation, ignore its operation.
The RADIO LED indicates a connection between the handset and the 
radio module; it lights when the handset is being used as long as the 
battery pack in the handset is charged.
Installing Multiple Carriers
•
Install each carrier high on wall, leaving 6–12 inches (15.2–30.5 cm) between 
antennas and ceiling
•
Install each carrier 1 foot (0.3 m) optimal to 4 feet (1.2 m) from its 
neighboring carrier
•
Never install or remove a radio module from a carrier that is plugged into a 
wall outlet (hot insertion)
Multiple carrier installation involves several stages:
•
Mounting the carriers on the wall and cabling them
•
Installing a single radio module in each carrier
•
Installing the remaining radio modules
The most efficient method for installing carriers and their radio modules is to perform self tests after each stage 
of the installation. This enables you to spot any problems at an early stage, and avoid the necessity for 
deinstalling the components in order to solve problems.
POWER
RADIO
PASS
Radio 
Module
POWER
RADIO
PASS










