Motorola XPR 4580 ユーザーズマニュアル

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Advanced Features
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32
Trunking System Controls
NOTE: This is a trunking only feature.
Using the Failsoft System
The failsoft system ensures continuous radio communications 
during a trunked system failure. If a trunking system fails 
completely, the radio goes into failsoft operation and 
automatically switches to its failsoft channel.
Procedure: 
1
During failsoft operation, your radio transmits and receives 
in conventional operation on a predetermined frequency.
2
A medium-pitched tone sounds every 10 seconds and the 
display shows Failsoft, which alternates with the 
personality alias.
When the trunking system returns to normal operation, your 
radio automatically leaves failsoft operation and returns to 
trunked operation.
Going Out of Range
When your radio goes out of the range of the system, it can no 
longer lock onto a control channel.
Procedure:
1
A low-pitched tone sounds.
AND/OR
The display shows the currently selected channel 
combination and Out of Range.
2
Your radio remains in this out-of-range condition until:
It locks onto a control channel.
OR
It locks onto a failsoft channel.
OR
It is turned off.
Using the Site Trunking Feature
If the zone controller loses communication with any site, that 
site reverts to site trunking.
The display shows the currently selected channel combination 
and Site Trunking.
NOTE: When this occurs, you can communicate only with 
other radios within your trunking site.
NAG_LACR.book  Page 32  Thursday, November 12, 2009  10:17 AM