0180036-J0 Rev E Page 37
10 Maintenance
Although very little maintenance is required with Alpha systems, routine checks and adjustments are
recommended to ensure optimum system performance. Qualified service personnel should do repairs.
The following table lists a few maintenance procedures for this system. These procedures should be
performed at least once a year.
In areas where flying insects and other debris may routinely clog the rectifier fan filter, it may be neces-
sary to inspect ventilation openings and replace the rectifier fan filter more often.
WARNING: HIGH VOLTAGE AND SHOCK HAZARD.
Use extreme care when working inside the shelf while the system is energized. Do not make contact
with live components or parts.
IMPORTANT: Circuit cards can be damaged by static electricity. Always wear a grounded wrist strap
when handling or installing circuit cards.
10.1 Maintenance Cautions
CAUTION: The IO connections on the L-ADIO and other IO devices should be made while wearing an
ESD wrist strap securely connected to the terminal block pin labeled GND (1) of the device being wired.
Figure 20: Ground Terminal PIN
Table 7: Sample Maintenance Log
Procedure Date Completed
Clean ventilation openings (replace rectifier fan filter if necessary)
Inspect all system connections (re-torque as necessary)
Verify alarm/control settings
Verify alarm relay operation
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