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CDM-625 Advanced Satellite Modem
Front Panel Operation
5.10.2.2
ODU: LNB:PwrSupply+Ref
LNB-LO Frequency= 00000 MHz
This menu permits the user to enter the LNB LO frequency for the up conversion. Entering a non-
zero value for LNB LO will cause the Rx-IF frequency menu to show LO and Satellite frequencies.
The Mix sets the polarity for the upconversion mix in the LNB:
•
•
Satellite frequency = LO frequency +/- modem frequency.
Select the parameter to edit using the
MHz; the available options are shown in parentheses. Use the
then press ENTER when done.
5.10.2.3
ODU: LNB:PwrSupply+Ref
LNB Power Supply [Off]:
This display shows the LNB power supply information. Press ENTER or CLEAR to return to
the previous menu.
5.10.3 ODU: FSK-control
Communication to the ODUs is achieved using a low-speed, half-duplex FSK link.
For the Transceivers: On the Rx IF port, with a carrier frequency around 2.7 MHz.
To a 'smart' BUC': On the Tx IF port, with a carrier frequency around 650 kHz.
ODU Control=
ODU Type:None (None,BUC)
If FSK is enabled using the
devices that could be attached and hence controlled via FSK:
•
•
•
•
Mix= High [-] (Hi,Lo)
High indicates a high side, inverting mix;
Low indicates a low side, non-inverting mix.
◄ ►
0000mA, 00.0V
FSK=On
arrow keys, the second line is updated to show the possible
▲ ▼
BUC – see Section 5.10.4
CSAT – see Section 5.10.7
KST – see Section 5.10.8.
2 CSAT in a redundancy set-up – see Section 5.10.6
MN-0000036 (Ref MN/CDM625.IOM)
LO Frequency
arrow keys. The valid LO range is 3000 to 65000
▲ ▼
PSUmonitor
(Off,On)
5–63
Revision 1
(34v)
arrow keys to edit the setting,
(34v)
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