Msu Scan - Futurecom Mobexcom P25 User Manual

MSU Scan

When the MSU is programmed (recommended) to suspend SCAN when DVR is ON, the
following SCAN scenarios are possible:
If the DVR is in the SYSTEM or LOCAL Mode and the MSU User presses the SCAN
button on the Control Head he /she hears an invalid button press tone and the SCAN
function does not become active.
If the DVR is OFF or Disabled, the MSU User can press the SCAN button and activate
the SCAN function.
Once the MSU is in SCAN:

If the DVR Mode is changed from OFF to SYSTEM or LOCAL, the SCAN is
suspended.

If the DVR Mode is changed back to OFF, the SCAN resumes.
If the MSU is programmed to allow both SCAN and DVR to be activated at the same
time, the following rules apply:

If the MSU lands on a mode which is compatible with the selected DVR channel then
outbound calls are repeated to the Local PSUs.

If the MSU lands on a mode which is not compatible with the selected DVR channel
then the DVR is disabled and the outbound call is not repeated to the Local PSU.

Inbound call from the Local PSU has higher priority and returns the MSU to the
originally selected mode.
NOTE:
When SCAN and DVR operation is allowed (by MSU programming), the strapping of
DVR channels to MSU modes must be disabled.
April 2014
8A083X20 Rev. 16
6881013Y38-P
User's Guide
Page 37 of 70