Comtech EF Data CDM-840, Инструкция по установке и эксплуатации, Страница: 75 / 110

CDM-840 Remote Router Revision 0
Ethernet Management MN-CDM840
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5.4.4.4.8 Configuration | LNB (Low Noise Block Down Converter)
Figure 5-18. Configuration | LNB page
The ‘ Configuration | LNB ’ page ( Figure 5-18 ) is used to configure Low Noise Block Down
Converter parameters, and display the LNB status for L-Band operation.
LNB Control
The acceptable/valid operating range for each item in this section is provided in brackets.
LNB Frequency [3000 – 65000] – Enter a value (in MHz) for the LNB Frequency.
Rx LO Frequency – Use the drop-down menu to designate the Rx Local Oscillator Frequency as
a HIGH (+) or LOW (-) limit.
LNB DC Power – Use the drop-down menu to select the power as Off , 13V , 18V , or 24V .
LNB Reference Enable – Use the drop-down menu to Enable or Disable the LNB Reference.
LNB Current Threshold (Low and High) [0 – 500] – Enter a value (in mA) for either function.
Once the desired configuration settings have been made in this section, click [Submit LNB
Controls] as needed to save these changes.
LNB Status (Refresh every 5 seconds)
The LNB Current (mA) and LNB Voltage (V) information is continuously monitored and is
provided here on a read-only basis. As the header states, this section automatically refreshes every 5
seconds and cannot be changed.