
Theory of Operation
178 025-9035AA
Figure 45: Mode Change from Analog to Digital and Back (Remote Control Mode = 04)
Figure 46: New Zone Selected While Keyed (Remote Control Mode = 04)
Note ZONE ADR information changes as soon as Radio Station Card
selects next zone for paging.
Z-19
NA PTT
(ANA RTS)
COR/CAS
(ANA CTS)
TX AUDIO
DIG PTT
(DIG RTS)
DIG DATA
ON
OFF
BUSY
(DIG CTS)
Mode Change From Analog to Digital and Back
(Remote Control Mode = 04):
TMOD TMOD
TLINK
TBSY
TMOD
TLINK
TMOD
TBSY
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Z-20
TREQ
XMIT
REQUEST
ZONE ADR
8/4/2/1
UX
NA/DIG PTT
(ANA/DIG RTS)
DIG DATA or
TX AUDIO
TKEY + TMOD
TBUSY
ON
OFF
COR/CAS/BUSY
(ANA/DIG CTS)
TLINK
ON
OFF
ON
OFF
ON
OFF
VALID
INVALID
ON
OFF
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