User Manual

163
MN024-08
Description
The TMPx-10 power limiter monitors the
downlink input power and attenuates it by
10dB above a predetermined set point. The
threshold is programmable through the
supervision system.
TMPx-10 power limiter is available in two versions, one suitable for GSM DL
(800 to 1000MHz or 1800 to 2000MHz) and the other for UMTS 2100MHz DL.
RF ports
• 1 DL RF input port
• 1 DL RF output port
TMP main applications
Main applications of the TMP
module are:
• Check DL RF level coming from
a donor source in order to
protect the system if the level
exceeds a specified threshold.
TMP visual alarms
The TMP front panel is provided
with 3 LEDs (see on the right)
showing status and alarm information
LED meaning is reported on the rightward table.
Further information about alarm status are delivered by Britecell Plus supervision
system
TMPX
Label LED colour Meaning
Power Green Power supply status OK
Alarm Red
It can be:
- TMP power supply alarm
- RF input overdrive
Warning Red
It can be:
- temperature alarm
- no RF signal at the input port
DL RF in
p
ut
p
ort
(
from donor source
)
DL RF out
p
ut
p
ort
(
to master unit
)
Tab. 5.11: Summary of TMP LEDs meaning
Fig. 5.22: The TBSI base station interface
Fig. 5.23: The LED panel
on the TMP front-side
Module name:
Power Limiter
TMPx-10