Motorola VRS750 Service Manual page 45

Departure of a VRS Unit
TRANSMITS TO
ALL REPEATERS AND
PORTABLE RADIOS
IN THE AREA
UNIT B
"DELAY STATE ONE"
Figure 21. Three VRS Unit Transmission Sequence
The priority unit may change, depending upon the order in which
they leave, as vehicles leave the coverage area. For example, in Figure
21, when unit A turns the VRS option off, it has no effect on the
priority unit (unit C). Unit C continues to be the priority unit and
repeat transmissions.
When the priority unit (unit C) turns the VRS option off and
conditions for repeater transmissions occur, the unit in delay state one
(unit B in Figure 21) counts down to delay state zero and becomes the
priority unit. See Figure 22.
IMPORTANT NOTE: Non-priority units (those in delay state 1
TRANSMITS TO
BASE STATION AND
MOBILE RADIOS
IN AREA
UNIT C
"DELAY STATE ZERO"
PRIORITY UNIT
UNIT A
"DELAY STATE TWO"
or higher) will not count down into
priority if the portable user attempts to
send a status or message. If there is no
priority unit on scene, the request will be
ignored.
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