Comtech EF Data CDM-700 - Manual (Page 91)

CDM-700 High Speed Satellite Modem Revision 5
Front Panel Operation MN/CDM700.IOM
6–37
If Intfc1 Rx Clock: Æ Source is selected:
Intfc1 Rx Clock:
Rx-Sat Tx-Terr Internal
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 ◄ ► arrow keys. Press
ENTER
. The selections
are as follows:
Selection Description
Rx-Sat (default)
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.
Tx-Terr Uses the clock from the Tx input (TT) to clock out the Rx Buffer.
Internal Derives a clock from the internal 10 Mhz reference clock.
If Intfc1 Rx Clock: Æ Invert is selected:
Intfc1 Rx Data Invert:
Normal Inverted ( E)
This feature has been added for compatibility with certain older equipment. Select Normal or
Inverted, using the
◄ ► arrow keys, to control clock inversion. Press
ENTER
.
If Intfc1 Rx: Æ Enable is selected:
Intfc1 Rx Enable:
Enable Disable (E)
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
◄ ► arrow keys. Press
ENTER
.
Intfc1 HSSI: Æ CTS/RTS
Intfc1 CTS/RTS:
Normal Fault (E)
Select Normal or Fault using the
◄ ► arrow keys. Press
ENTER
.