Alarm Indications - Arbiter Systems 1205B Operation Manual

4.6.4.5 Brownout Fault
The brown out detector generated a reset, which would normally indicate a power supply issue.
FAULT: BROWN OUT
DETECTOR RESET
4.6.4.6 Power Supply Fault
The clock can be configured for two power supplies: power supply A and power supply B. The fault
indicates that the voltage from a configured power supply is low.
FAULT: POWER SUPPLY
PSA: ---V PSB: ---V
4.6.4.7 Antenna Faults
Messages for faulty antenna/cable conditions are (1) Antenna Short, and (2) Antenna Open. Both
messages are illustrated below. The first message indicates an antenna short, and the second
display indicates an antenna circuit open with the current of zero milliamperes. These fault
messages will disappear once the connection is restored.
FAULT: ANT
0.02 V
FAULT: ANT
4.96 V
4.6.4.8 Programmable Pulse Overload Fault
The signal has dropped below the minimum voltage and the signal(s) may not transmit correctly.
FAULT: PP OVERLOAD
dd/mm/yyyy hh:mm:ss
4.6.4.9 Boot Loader Missing Fault
A firmware package that allows the installation of new clock firmware is not detected and will need
to be restored at the factory.
FAULT:
BOOT LOADER MISSING

4.6.5 Alarm Indications

4.6.5.1 Position Change
If the clock (or GNSS antenna) is moved to a new location, it is possible that a Position Change
Alarm may occur. If it does, the ALARM LED will light and a message will be displayed in the
SYSTEM menu. To view message, press ENTER at the submenu indicating "ALARM?"
POS. CHANGE 123456 m
dd/mm/yyyy hh:mm:ss
LO VOLT
127 mA
OPEN
0 mA
39