Comtech EF Data CDM-750 - Manual (Page 138)

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Front Panel Operation MN-CDM750
5–60
5.2.7.7.2 (UTILITY) Firmware Images: Select
Current Active Image is #1
Next Reboot, will use Image: #1
The top line shows the current active image. On the bottom line, use the ST arrow keys to select
the other image (#2) if needed, and then press ENTER. You are then prompted to reboot the unit.
5.2.8 SELECT: ODU (Outdoor Unit)
The BUC:PwrSupply+Ref and FSK‐control selections are reserved for future use and
are non‐operational at this time.
ODU: BUC:PwrSupply+Ref
LNB:PwrSupply+Ref FSK-control (
34)
Use the W X arrow keys to select LNB: PwrSupply+Ref, and then press ENTER.
5.2.8.1 ODU: LNB:PwrSupply+Ref
LNB control/monitor:
PSU-and-10MHz PSUmonitor (
34)
Use the W X arrow keys to select PSU‐and‐10MHz or PSUmonitor, and then press ENTER.
5.2.8.1.1 (ODU) LNB:PwrSupply+Ref: PSU-and-10MHz
LNB: Voltage=Off 10MHz=Off (Off,On)
Alarm limits, from 000 to 500 mA (
34v)
Use the W X arrow keys to select the Voltage, 10MHz, or the Alarm low and high limits (range)
settings, and then use the ST arrow keys to configure each setting. Press ENTER when done. Note
the following:
Selection Description
Voltage Use the
ST arrow keys
to select Off, 13V DC, 18V DC, or 25V DC. Any
setting other than Off configures the rear panel J9 | L‐BAND RX IN Type
‘N’ connector.
10MHz Use the
ST arrow keys
to select Off or On. Selecting On enables a
high stability 10MHz reference clock with ±0.06 ppm on the rear
panel J9 | L‐BAND RX IN Type ‘N’ connector.