MPF Technologies Inc. MPFP000B0F0 Manual Do Utilizador

 

9

 
3.1 Introduction 
 
This section provides information for operating the MPF-001 repeater. 
 
3.2 Operating Instruction 
 

3.2.1 Power-up 
 
Connect the repeater to AC/DC adaptor.  If the GREEN LED does turn on, the 
repeater is then operating properly. 
 
3.2.2 Fail 

 
There is one overdrive fail on the unit, for the up link.  Over driving occurs when the 
RF output power of the repeater exceeds a prescribed limit.  This means that the 
input RF power level is too high, or the repeater is oscillating.  The condition may be 
transient, caused by various factors (e.g. due to a nearby base station, a nearby 
passing emergency vehicle emitting a strong signal etc.).  It may also indicate low 
isolation between the antennas, which causes the unit to oscillate (please refer to the 
section 2.6.2 of this manual for antenna alignment and isolation). 
 
The overdrive fail on the MPF-001 repeater is designed to detect whether the 
overdriving is transient or permanent.  If the output power level of reverse (Up Link) 
exceeds prescribed limit, then reverse path is disconnected and the ALARM LED 
(RED) is on.  Repeater automatically checks output power after a specified amount 
of time (10 seconds) when the reverse path has over power.  If the reverse path still 
exceeds level then shut down mode continues for a specified amount of time (10 
seconds).  Once the ten seconds has elapsed, the reverse path is switched on again 
and it checks the output power level again.  This process will take place a maximum 
of three times and after the third time, it will not turn back on automatically unless 
it’s manually powered back on. 
 
  

If the repeater 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.