Operating instructions

RCS20 M:N Redundancy Switch Maintenance
TM056 - Rev. 2.3 6-1
Section 6 – Maintenance
6.0 Periodic Maintenance and Troubleshooting
The RCS20 requires no periodic field maintenance procedures. The unit has no adjustments, and
all configuration information is digital and stored in nonvolatile EEPROM. Should a unit be
suspected of a defect in field operations, the proper procedure is to first to follow the basic
troubleshooting guide below. If this does not cure the problem, replace the unit with a known good
unit, if available. If the problem persists with the known good unit, faulty wiring or power should be
suspected. Only minor repairs will be discussed. For serious failures, the user should not attempt
to repair the unit without first contacting Radyne ComStream, Inc. for further information and
instructions.
6.1 Troubleshooting
Upon the detection of an operational failure, the source of the failure must be determined.
Information on system failures will be contained in the Alarms Display. Basic user checks include
checking the power line fuses and the various cables and connectors.
6.1.1 Checking the Cabling and Connectors
Problems that appear difficult to solve can often be traced to a loose or defective cable or connector.
As a first check, the user should check all cables within the system for possible breaks or loose
connections. Cables that are suspect should be replaced. Also check the jacks on the units for
bent or broken pins. Also ensure that both AC power cords are properly plugged into the rear of
the RCS20.
6.1.2 Checking the Fuses
The AC power cord that is next to each fuse must be disconnected before
the fuse may be removed. To keep the RCS20 operational, be sure to
disconnect only one power cord at a time. Also be sure to replace the fuse
and the power cord before checking the other fuse.
The AC fuses are located under the fuse cover next to each AC power plug.
To remove a fuse, the power cord must first be unplugged so that the cover
can be slid away from the fuse and over the AC receptacle. The fuse may
now be removed for testing. Test the fuse with an ohmmeter or similar
device. if necessary, replace the fuse with a new one of the same size and
rating.