User Manual

AirLink Pro T1/E1 Rack MountInstaller’s Guide
Operations and Maintenance
Rev. B - 1/97
4-2
Overview
This chapter focuses on monitoring system operation by querying for status,
performance, and alarm information through the terminal user interface. This
chapter also includes descriptions of the LEDs on the AirLink Pro T1/E1 Rack
Mount digital module. Finally, this chapter describes the diagnostic tests and
procedures used to isolate and resolve errors occurring during radio unit
operation.
Programmed Configuration Parameters
AirLink Pro T1/E1 Rack Mount operation is governed by user-selectable
configuration and control parameters that reside in the non-volatile memory of
the unit. These parameters are displayed and controlled through a terminal
device that can access both the local and remote unit. When power is lost and
then restored, the system reconfigures itself from its protected configuration
database.
A long-life lithium battery protects all system configuration settings during
power losses. The battery is part of the non-volatile memory/real-time clock
circuitry on the digital module in the AirLink Pro T1 and has a 10-year storage
life (in the absence of power to the AirLink Pro T1/E1 Rack Mount).
CAUTION The component containing the lithium battery is NOT a customer-replaceable part. Do not
expose the lithium battery cell by opening the component. Do not attempt to recharge the
battery. Do not dispose of the component by fire. The lithium battery could explode if
mistreated.
Refer to Chapter 3, Configuration, for more information on changing
configuration parameter settings.
Acquiring Status Information
Each AirLink Pro T1/E1 Rack Mount system maintains an internal database of
status and performance information that it uses, in part, to derive the events
that are stored in the event queue. The status information categories include:
❚ T1 DTE Input Loss
❚ Radio Synchronization Loss