OPISYS USHR-800 用户手册

The overdrive fail on the USHR-800 bi-directional amplifier is design to detect whether
the over driving is transient or permanent. If the output power level of reverse
path(=Up Link) exceeds prescribed limit, then reverse path is disconnected and the
FAIL LED (RED) is on. Bi-directional amplifier automatically checks output
power level every 1 minute of a 5 minute cycle when reverse path has over power .
If reverse path still exceeds level then shut down mode continues for another 10
minutes. After 10 minutes, reverse path is switched on again and it checks output
power level again. (Repeats the process)

4. Trouble Shooting

If the bi-directional amplifier does not operate properly after installation, first make
sure that the installation procedures as described in section 2 of this manual were
followed correctly. Inspect each connection, both RF and AC, and connectors for a
secure fit, checking to see if all the connections are made to the proper ports of the
unit and the antennas.

If the malfunction is due to an alarm condition, refer to the appropriate part of the
section 3.2 of this manual. Corrective actions may be taken for the overdrive
alarms.

There are no user serviceable parts in the USHR-800.

DO NOT OPEN the unit. There is a danger of an electric

shock. Opening the covers of the unit will void all warranties.

CAUTION!