PM4/8/12/16 & PM4/8-SA Installation and User Guide v1.1
41
Disabling Zone buttons
It may occasionally be desired to restrict the zones which a microphone can access.
To permit this, zones may be disabled. Note that the disabling of zones is on a per-
unit basis, and other microphones in a multiple-PM system will still have free access.
On SA models, disabling zone buttons affects both paging and messaging functions.
To disable particular zones on a PM, proceed as follows:
1. Set jumper J7 to ON, and power the unit on (thus performing an NVM reset).
2. Press and hold the CLEAR button.
3. While holding CLEAR down, select the zones to be disabled by pressing the
appropriate ZONE buttons.
4.
The selected zone lights begin to flash, indicating that the microphone is now in
Disable Group Edit mode.
5. Continue to hold the CLEAR button and complete the selection/de-selection
process with the ZONE buttons.
6. Release the CLEAR button once the selection is complete. The selected zones
will then be written to memory as the Disabled Group.
7.
LEDs for the selected zones will remain illuminated to confirm the selection.
Press CLEAR again to clear the display.
8. Reset jumper J7 to OFF to prevent a second NVM reset on a subsequent power-
up. (It is better to leave the power on for this step.) Once a zone has been
disabled, it will be inaccessible to that PM, either via the ZONE and GROUP
buttons, or via CALL ALL.
NOTE: To cancel zone disabling, perform an NVM reset (see “Power-On Non-Volatile
Memory (NVM) Reset” on page 40). This will clear the Disabled Group and re-
enable all zones. However, be aware that if an NVM reset is performed for any other
reason, any zone disabling required will need to be re-established.
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