Telephone Operation
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Telephone Operation
1. When any telephone zone rings (the local buzzer sounds intermittently, and the green zone LED and Incoming
Call LED flash) press that zone's button (on the selector panel QAZT-5302DS) once to answer. Once any one
zone has been answered, calls from any other zone will cause that zone's green LED and the Incoming Call
LED at the master telephone to flash and the buzzer will sound.
2. Press the answered zone's button once again to hang up. (Note that the telephone zone will hang up
automatically if all handsets on the zone are placed back on the hook).
QMT-5302N and QMT-5302NV Master Telephone LEDs
Trouble LED
This LED will flash amber if there is any zone or other trouble in the firefighters' telephone system.
I ncoming Call LED
This LED will flash green if any telephone zone has a handset off-hook and unanswered. It will illuminate steady
green if all telephone zones with off-hook handsets have been answered.
Call Control Active LED
This LED will illuminate when there is a connection between the designated Master Telephone (at the CACF) and
the present QMT-5302N or QMT-5302NV telephone.
QMT-5302N and QMT-5302NV Master Telephone Pushbutton Controls
Call Control
Pressing this pushbutton will connect this master telephone with master telephones as configured.
Deselect All
Pressing this pushbutton will disconnect all master telephone calls initiated at this node (Call Control minus).
QAZT-5302DS and QAZT-5348DS Network Firefighters’ Telephone Selector Panel LEDs
Telephone Zone Green LED
This LED will flash green if there is any handset off-hook on that zone, and the zone has not been answered by
pressing the zone's button. Once answered, the LED will be steady green.
Telephone Zone Amber LED
This LED will flash amber to indicate trouble on open-circuit zone faults (e.g. missing end-of-line resistor or wire
breaks) or short-circuit zone faults.
QAZT-5302DS and QAZT-5348DS Network Firefighters’ Telephone Selector Panel
Pushbutton Controls
Telephone Selection Pushbutton
Pressing the telephone selector pushbutton will select the associated telephone to be connected to the Master
Telephone. Pressing this button a second time will hang up.
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