Software Manual

ALFOplus 24GHz (North America) - Release 01.05.0x - MN.00395.E - 004 135
11 MAINTENANCE AND TROUBLESHOOTING
11.1 GENERAL
In the following pages are listed all the procedures to follow for ALFOplus maintenance.
When corrective maintenance is necessary, a troubleshooting procedure helps the operator to identify the
failure unit to replace it with a spare one.
11.2 MAINTENANCE
Maintenance consists of two stages:
1. periodical checks to be carried out using SCT/WebLCT
2. corrective maintenance.
Periodical checks serve to detect correct radio performance without the presence of any alarm condition.
Corrective maintenance takes place as soon as one or more alarm conditions are in existence. Operation
sequence to be carried out is shown in “Troubleshooting” paragraph.
11.2.1 Periodical checks
System routine maintenance consists in a series of routine checks aiming to verify correct operating mode
of an alarm–free system.
These checks are made through SCT/WebLCT program, installed on a PC.
The items to be checked are:
• Tx power (i.e., attenuation value in dB vs. nominal value)
• Rx field (value measured must comply with that resulting from hop calculation)
• S/N (presence of possible interference)
• BER (values measured must comply with hop calculations)
How these operations are carried out is specified in “Line–up” section or, more widely, in ALFOplus software
manual.