Motorola MSF 5000 Instruction Manual page 255

MSF
5000
Instruction Manual
AppendixC
MUxXbus
Descriptions
R2
AUX
DT
DOS
RW4 OVG
RW3
SYN
RW2 PA
RW1
BAT
68P81092E11 3/19/94
MUXbus Overview
Second Receiver Auxiliary
Detect (A11/D1)
Indicates that
an
optional decoder is detecting on Receiver
2.
In
MCS
stations, this
bit is used
to
indicate the most
significant bit of
the active
MCS
user number.
The
second receiver option is not yet supported,
so
this bit has no effect when active.
Data Operated
Squelch
(A11/D0)
In
MCS
stations, this
bit is used
to
indicate
the second
most significant bit of
the
active
MCS
user number. In data stations, this
bit indicates
a
data detect has been
achieved. The repeat audio pathway is muted
to
prevent repeating data while this
bit is active.
Reverse Wildcard
4
-
Battery Overvoltage (A12/D3)
Indicates that
the
battery overvoltage internal station alarm is active. When
active,
the
SSCB generates four alarm beeps which can be routed to the local
speaker, the
wireline,
and/or
over
the
air depending on how the station is
programmed.
Reverse Wildcard
3
-
Synthesizer Unlock
(A12/D2)
Indicates that
the
transmit or receiver synthesizer is out of lock. When active,
the
SSCB
generates three alarm beeps
which
can be routed
to the
local speaker, the
wireline, and/or over the
air depending on how
the station is
programmed.
Reverse Wildcard
2
-
PA Fail (A12/D1)
This bit
is the
RF
power amplifier failure alarm parameter, activated
by
the
SSCB.
RW2 PA
is
active when the
RF
power amplifier
has failed.
A
successful
keyup
or
a
SSCB
reset is required to clear the alarm.
The alarm may
be
active when
the
transmitter is de-keyed, due
to a
prior failure.
PA Fail
means that one or both of
the
SSCB PA
status lines (PA On
or
PA Full
Power) is inactive 30-45 msec after the
start of
a
keyup,
or for 30-45 msec
continuously during keyup,
thereafter.
Reverse Wildcard
1
-
Battery Revert (A12/D0)
Indicates that
the
AC
main power
to the
station has been lost and that the station
is operating
on
battery power. When active, the SSCB
generates one alarm tone
C-9