Comtech EF Data CDM-760 - Manual (Page 153)

Front Panel Operation Revision 2
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
6–67
Select On to enable a high stability 10MHz reference clock with ±0.06 ppm on the rear
panel J9 | L-BAND RX IN Type ‘N’ connector.
(ODU: LNB:PwrSupply+Ref) PSU-and-10MHz Alarm limits
The CDM-760 constantly monitors the LNB power supply source. Use this selection to
define an alarm range that alerts you to problems with the LNB.
On the bottom line, first use the   arrow keys to select a digit to edit, and then use
the  arrow keys to change that digit. Press ENTER. Valid settings are:
Range
Step Size
Minimum Maximum
000 mA 500 mA 1 mA
6.2.7.2 (ODU: LNB:PwrSupply+Ref) PSUmonitor
LNB Power Supply [On]
274mA, 18.2V
The top line for this read-only screen shows whether the LNB is On or Off:
• If the LNB is On, the bottom line of this screen displays the present current and voltage readings
for the LNB Power Supply.
• If the LNB is Off, the bottom line displays 0000mA, 00.0V.
Press ENTER or CLEAR to return to the previous menu.
6.2.8 SELECT: FAST
Chapter 5. FAST ACTIVATION PROCEDURE
FAST: Options Demo-Mode CnC ()
Baseboard S/N 123456789 HW RevXX.XX
FAST (Fully Accessible System Topology) allows you to enable new options in the modem.
Contact Comtech EF Data Product Support to purchase a FAST Option and acquire the
associated FAST Access Code.
The bottom line displays the modem’s 9-digit “Baseboard S/N” – you will need to provide this
information to Comtech EF Data Product Support when ordering FAST feature upgrades.
On the top line, use the   arrow keys to select a parameter. Press ENTER.