Description
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2.4.5.1.6 Duplexer module management interface
Per duplexer, this function carries out:
• the detection of the duplexer presence,
• the power supply to the duplexer modules,
• the interface for the following alarms:
- LNA alarms,
- transmission alarms,
- SWR alarms.
2.4.5.1.7 Management of alarms
This function manages the following alarms:
• SYNC alarm: monitoring:
- HSX synchro and HTX clock signals,
- 6.4MHz reference pilot,
- power supplies to the synchronisation board,
- the temperature of the synchronisation board,
• fan unit alarm: if a fan runs at under 1500 rpm,
• duplexer 1 alarms: if one of a duplexer's three alarms is present. These three alarms are
transmitted to the 3G PA-TRX module to be supervised,
• duplexer 2 alarms (antenna diversity option): if one of a duplexer's three alarms is
present. These three alarms are transmitted to the 3G PA-TRX module to be
supervised,
• convertor power supply alarms ("PWR" and "FAN")
and generates an alarm external to the IDR IDO 3G.
