Replacing The Cavity Combiner - Motorola MTS LiTE Installation, Configuration And Basic Service Manual

The following list contains control and monitoring features available through the CAN Bus:
• Request current tuned position/frequency of a specific cavity.
• Fine tune time feature, to re-tune each cavity with a specified interval.
• Park an individual cavity, but if RF power is still present, cavity will park and then retune again.
• Input power: request current measured input reflected power of a specific cavity.
• VSWR: request input VSWR of an individual cavity.
• Tuning status of each cavity; parked, tuning, tuned, and parking.
• Alarm conditions of each cavity are reported when requested, including : VSWR, subband, channel
spacing and failure to tune.
7.3.6.2

Replacing the Cavity Combiner

Process:
1 Remove the Cavity Combiner.
See Removing the Cavity Combiner on page
2 Reinstall the Cavity Combiner.
See Reinstalling the Cavity Combiner on page
7.3.6.2.1
Removing the Cavity Combiner
Procedure:
1 WARNING: RF energy hazard and potential equipment damage precaution.
To prevent accidental contact with high energy and injury to personnel, switch off the Power
Supply Unit.
2 Remove the door of the cabinet completely.
3 Remove the three screws fastening the Cavity Combiner to the brackets of the cabinet.
Two screws are on the left and one is on the right side of the Cavity Combiner.
4 Remove all TX and signal cables.
5 CAUTION: The Cavity Combiner can weigh up to 11.8 kg (26 lbs.). Use caution when
removing or installing Cavity Combiner into the equipment rack. To avoid injury to
personnel and equipment damage, ensure that the combiner is fully supported when free
from mounting rails.
Slide out the Cavity Combiner.
7.3.6.2.2
Reinstalling the Cavity Combiner
Procedure:
1 CAUTION: The Cavity Combiner can weigh up to 11.8 kg (26 lbs.). Use caution when
removing or installing Cavity Combiner into the equipment rack. To avoid injury to
personnel and equipment damage, ensure that the combiner is fully supported when free
from mounting rails.
Chapter 7: Radio Frequency Distribution System
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