Table 14: Troubleshooting Procedures - EMS EkoMini Operator's Manual

Other troubleshooting procedures are described in Table 14 below.
Problem
No Power (Green
power LED is off)
Alarm Light is On
Low Downlink Signal,
possibly with alarm
issued
Uplink –10
signal level is on
Unit issues alarm and
shuts down after 5
minutes
Flashing green Power
LED
Unable to log in with
HyperTerminal, etc.
EMS Wireless EkoMini Manual

Table 14: Troubleshooting Procedures

Probable Cause
Power Supply problem
No Downlink Signal
Donor antenna is mis-
aligned, DL cable is
faulty, BTS is not line of
sight,
excessively
repeater site, etc.
dBm Normal condition if no
mobile phones are in
use near the repeater
Excessive DL or UL
signal is
repeater
Configuration switches 3
and 4 are both turned
"off" on PCS models.
Remote alarm
not installed.
41
Corrective Action
Reconnect
repeater.
Verify AC power source; plug in
power supply if necessary.
Check downlink signal level with a
spectrum analyzer.
Check band switches 3 and 4 on
PCS models.
Measure downlink signal level with
a spectrum analyzer.
Improve DL signal by raising the
BTS is donor antenna, re-orienting
far from donor antenna, re-orienting unit to
shorten cable runs, etc.
Activate a mobile phone and move
it close to the server antenna. UL
signal level should increase.
Lower signal levels by moving
overdriving phone away from server antenna,
etc.
Toggle
frequency band; then reset unit.
option Check unit model number – "N"
indicates remote alarming is not
installed.
EMS Wireless
power supply
switches to
to
the
correct