User's Manual

C
onfidential & Proprietary
This chapter describes
additive functions
7.1
Shutdown function (
The DAS has an automatic shutdown function to protect the DAS itself and
network when the normal operational conditions cannot be maintained
The DAS shut down automatically when the composite power downlink output power is
above the values defined as average for the device for a period not to exceed
5seconds. Crit
erion level is set
After automatic shutdown,
whether the temporary condition has changed.
shall shutdown again. T
hese actions will be repeated 5 t
A
fter 5time repetition, if the condition is still detected,
permanently. T
he following diagram shows the shutdown
After the retry logic
exhausts
will shutd
own permanently and illuminate the fault via visual fault indicator
Permanent shutdowns of the DAS will also be reported to the NOC through the NMS
7.2
Total Power Limit function (
I
n order to protect HPA and not to radiate spurious emission
radiate above defined value which operator set in advance
operator should turn-
on the ALC function
power exceed above the defined value, output attenuator is adjust
defined value.
The output attenuator
decease, applied ATT by AGC function return to initial ATT
7.3
Output power automatic setting function
T
o provide convenience of
set to wanting output
level and turn
onfidential & Proprietary
136/139
additive functions
of SMDR-NH124.
Shutdown function (
TX output shutdown)
The DAS has an automatic shutdown function to protect the DAS itself and
network when the normal operational conditions cannot be maintained
The DAS shut down automatically when the composite power downlink output power is
above the values defined as average for the device for a period not to exceed
erion level is set
through GUI
After automatic shutdown,
the DAS may automatically turn-
on in order to assess
whether the temporary condition has changed.
I
f the condition is still detected, the DAS
hese actions will be repeated 5 t
imes
fter 5time repetition, if the condition is still detected,
the
DAS will be shutdown
he following diagram shows the shutdown
logic
exhausts
itself, if the DAS still detected a fault status then the DAS
own permanently and illuminate the fault via visual fault indicator
Permanent shutdowns of the DAS will also be reported to the NOC through the NMS
Total Power Limit function (
TX Output ALC)
n order to protect HPA and not to radiate spurious emission
, o
utput power don
radiate above defined value which operator set in advance
. To
execute
on the ALC function
and set limit level
through GUI.
power exceed above the defined value, output attenuator is adjust
ed to operate within
The output attenuator
’
s adjustment range is above 25dB
decease, applied ATT by AGC function return to initial ATT
Output power automatic setting function
(TX
Output AGC)
o provide convenience of
setting output power
at initial setup automatically,
level and turn
-
on the AGC function and then output power is
The DAS has an automatic shutdown function to protect the DAS itself and
the wireless
The DAS shut down automatically when the composite power downlink output power is
above the values defined as average for the device for a period not to exceed
on in order to assess
f the condition is still detected, the DAS
DAS will be shutdown
itself, if the DAS still detected a fault status then the DAS
own permanently and illuminate the fault via visual fault indicator
Permanent shutdowns of the DAS will also be reported to the NOC through the NMS
utput power don
’t
execute
this function,
through GUI.
If the output
ed to operate within
s adjustment range is above 25dB
. If output power
Output AGC)
at initial setup automatically,
operator
on the AGC function and then output power is