Specifications

December 2008 Page A–1
Appendix A — System Maintenance
A.1 Maintenance
The FOCUS system is designed for minimum
maintenance. Each module contains red LED indi-
cators to indicate trouble. If a module is bad, we
recommend that you replace the module with a
known good module and return the bad module to
AMETEK for repairs. There are no user service-
able parts on any of the FOCUS modules.
As maintenance is very low on the FOCUS
terminal, there are only two steps in preventative
maintenance: a visual inspection and the software
status check.
A.1.1 Preventative Maintenance
A routine visual inspection should include the
following items:
• Condition of the cabinet and housing
•Tightness of the mounting hardware
•Proper seating of the modules
•Condition of the internal wiring and
external wiring
• Appearance of the printed circuit boards
and components
• Signs of overheating in equipment
•Air ventilation holes are unrestricted
•No accumulation of dust and dirt
A.1.2 Software Status Check
Using the FOCUS Configuration Software,
perform a status check. The status will indicate
failures in the FOCUS system.
A.1.3 NOVRAM battery backup
Configuration settings should ALWAYS be saved.
When the chassis is powered down, the lithium
battery powers the NOVRAM in the maintenance
module where the FOCUS chassis configuration
settings are stored (firmware ver. Fxx3.00.00).
The MV5 stores chassis configuration and
operating system program in Flash memory. The
expected life of the lithium battery is ten years
without external power and greater than ten years
while the chassis is powered up. If this battery
ever fails while under power the settings stored in
memory will be lost upon next power down. A
minor alarm will be issued. A system event
“Backup Battery Failure of Timekeeping RAM
chip” will also be issued. And on the channel
modules page there will be a message “RAM
Battery Fail” in a yellow box on the module’s
graphic. The settings will be saved until next
power down. If the battery failure is detected upon
initial power up, the module’s status LED will
flash red 1 second, green 1 second. The Major
alarm LED on the Power Supply module will also
flash on/off at 1 second intervals.
If this occurs you should contact your AMETEK
representative for replacement.
Appendix A – System Maintenance
Low Voltage
Sync Error
Major Transceiver Error
Table A1 – PRI/PRS Major Alarms
Table A2 – PRI/PRS Minor Alarms
Channel module problem*
Carrier failure
Redundant Power Supply failure
Expansion chassis failure
Ram Battery failure
*Includes a PRI with a flashing LED indicating a redundant/multi-drop mode and one bad channel.