Comtech EF Data CDM-700 Installation And Operation Manual page 87

CDM-700 High Speed Satellite Modem
Front Panel Operation
If Intfc1 Rx Buffer:
Intfc1 Buffer Fill:
(046%) ReCenter
The percentage (046%) indicates the current buffer fill status. Select Re-Center, using the
arrow keys, to reset the buffer to the midpoint (50%). Press
If Intfc1 OC-3 Rx:
Intfc1 Rx Clock:
Rx-Sat
This selection determines which source clocks the output of the Rx Buffer for delivering data to
the Rx port at the user interface.
Select Rx-Sat, Tx-Terr or Internal using the
are as follows:
Selection
Rx-Sat (default)
Tx-Terr
Internal
If Intfc1 OC-3 Rx:
Intfc1 Rx Status:
Enable
This selection activates or deactivates the receive (Rx) side of this interface. Disabling the Rx
side deactivates it and changes the data rate to 0.
Select Enable or Disable using the
If Intfc1 OC-3 Rx:
Intfc1 Line Mode:
Optical
Select Optical or Coax using the
ReCenter is selected:
(
Clk is selected:
Tx-Terr Internal (
Description
Effectively disables the Rx Buffer because the input and output
clocks are the same. Normally, the Rx Buffer is set for minimum
when Rx-Sat is selected.
Uses the clock from the Tx input to clock out the Rx Buffer.
The Internal Clock comes from the modem. It is derived from either
the Ext Ref (J7) or Int Ref oscillator (10 MHz) in the main part of the
modem, not from the data interface.
Ena/Dis is selected:
Disable (
◄ ►
arrow keys. Press
Mode is selected:
Coax (
◄ ►
arrow keys. Press
6–33
E)
.
ENTER
E)
◄ ►
arrow keys. Press
E)
.
ENTER
E)
.
ENTER
Revision 5
MN/CDM700.IOM
◄ ►
. The selections
ENTER