Motorola DIMETRA MTS 2 Installation, Configuration And Basic Service Manual page 388

Base Radio Alarms
Table 13-7 Generic Base Radio Alarms (Continued)
Alarm ID
ALM_RX_VCO_MON_FAULT
ALM_RX_VCO_MON_FAIL
ALM_BRC_VCXO_UN-
LOCK_ALM
ALM_BRC_RE-
PLACE_VCXO_ALM
ALM_RX_ABACUS_CLK_SL
ALM_RX_ABA-
CUS_CLK_SL_FAIL
ALM_RX_ABACUS_LO2_SL
ALM_RX_ABACUS_2LO_SL_FAIL
13-22
Recovery
Description
Action
Receiver VCO Receiver is
monitoring disabled by
failure. the software -
BRC is unable to
receive.
The same as ALM_RX_VCO_MON_FAULT
VCXO is No recovery
action taken by
unlocked -
the alarm is the software.
reported as a
fault indication
message from
DSP.
No recovery
VCXO should
be replaced - action taken by
the software.
the alarm is
reported as a
fault indication
message from
DSP.
Receiver main Receiver is
Abacus clock disabled by
failure. the software -
BRC is unable to
receive.
The same as ALM_RX_ABACUS_CLK_SL
Receiver main Receiver is
Abacus 2nd LO disabled by
failure. the software -
BRC is unable to
receive.
Reported when ALM_RX_ABACUS_LO2_SL is set and ALM_RX_5_VOLT
is cleared
Chapter 13: MTS Troubleshooting
Clear Action
If the alarm The alarm may be
condition reported because
disappears then of the BRC
Receiver is
hardware failure
re-enabled by or configuration
the software. problems.
The alarm will The alarm means that
be cleared after the BRC reference
de-keying BRC. is not locked to an
external reference
and VCXO frequency
tolerance can vary
between 0.025 and
1.5ppm. The alarm
may be reported
because of the
external reference
failure or BRC
hardware failure.
The alarm will This is an indication
be cleared after the reference clock
de-keying BRC. may go out of lock in
the future.
If the alarm The alarm may be
condition reported because
disappears then of the BRC
Receiver is hardware failure
re-enabled by or configuration
the software. problems.
If the alarm The alarm may be
condition reported because
disappears then of the BRC
Receiver is hardware failure
re-enabled by or configuration
the software. problems.
6802800U74-N September 2009
Notes