DMS-1200 Release 6 Operations Manual
Section 7 – DAS Device Control
80
3. Configure the RX settings according to these guidelines:
Field
Action / Description
User
Configure
RX Values
Rx PLL Lock
Rx Phase Locked Loop status. Green = normal. Red = PLL
unlocked.
N
Rx In Power
Shows Rx input power on that port (±2dB).
Displays --- when there is no input detected.
N
Rx In ATT
Shows attenuation level applied to Rx input power.
N
Rx In ALC
Turn On/Off Auto Limit Control for input power.
Y
Tx AMP
Turn On/Off high power amplifier. Click
Reset
to cycle amp power.
Y
AMP Fail
Shows amplifier status. Green = normal. Red = Power amplifier
loop has failed or unexpected low power detected.
N
VSWR
Shows VSWR (Voltage Standing Wave Ratio) status and level.
Green = normal. Red = VSWR level has exceeded the pre-
determined threshold.
N
Over Power
Shows status of Over Power alarm. Green = normal. Red = Output
power level of the power amplifier has exceeded threshold.
N
High Temp
Alarm is activated when the temperature of amplifier exceeds 90C
N
2.5 TDD Only
TDD Sync
Shows status of SDM (Sync Detection Module). Green = normal.
Red = module is not communicating properly.
N
Band Select
Shows which TDD band was selected in the MDBU setup (see
page 53): Lower Band, Middle Band or Upper Band.
N
For normal operation, from the drop down list, select
Auto
.
For CW or lab testing, you can use the drop down list to switch
between Low Band, Middle Band or Upper Band.
Y
Table 7.27 – NHRDU Control Screen Fields – RX Values
4. Click
Apply
when you are done. Changes are saved immediately.