Loin Case Of Difficulty; Maintenance; Servicing - ACC RC-96 Owner's Manual

Chapter 10
Maintenance
Servicing
In Case of
Difficulty
The RC-96 controller is designed conservatively with high
quality, reliable components, and it is very unlikely that a com­
ponent failure will take the controller out of service. No periodic
maintenance is necessary to ensure long life. Internal transient
suppressors on each I/O lead and a three ternrinal gas discharge
tube across the phone line minimize impact of lightning on all
equipment in the system. Follow common sense in installing the
controller, such as avoiding locating it in extremely hot or dirty
areas. You should expect your RC-96 controller to run virtually
forever.
However, since Zap the Lightning God has been known to visit
repeater sites, it's possible that it may become necessary to repair
the controller at some time in its service life. Even though the
RC-96 controller includes transient protection to minimize the
" possibility of damage, this protection should be supplemented
with sound site engineering to minimize'impact of lightning on
all equipment in the system.
Of course, the controller may be returned to the factory for
repair, but it would be desirable to attempt to diagnose and repair
failures at the site when possible to minimize repeater down
time. While all potential failure modes can't be anticipated, the
guidelines will help isolate the problem to a particular compo­
nent or area.
In general, hardware failures can be classified into two broad
categories - those where the computer executes its program
correctly, and those where it executes garbage or nothing at all.
If the computer is executing its program correctly, as evidenced
RC-96 REPEATER CONTROLLER OWNER'S MANUAL· 89