beautypg.com

Comtech EF Data SDM-2020 User Manual

Page 83

background image

SDM-2020 Satellite Demodulator

Revision 4

Front Panel Operation

MN/SDM2020D.IOM

6–19

Function Select: Configuration: Interface: EXT- REF Frequency

(Conditional)

EXT-REF FREQ

1544.000 KHZ


IMPORTANT

Available with G.703 interface.


Programs the external reference clock in multiples of 8 kHz.

On entry, the current setting for the EXT-REF frequency is displayed. Press [

↑] or [↓] to

increase or decrease the frequency. Press to execute the change.

Function Select: Configuration: Interface: TX TERR CLK FREQ

(Conditional)

TX TERR CLK FREQ

44736 kbps


IMPORTANT

Available with G.703 interface.


Displays the current TX Terrestrial Clock frequency, as follows:

1544 kbps (available with T1/E1 compat intf)
2048 kbps (available with T1/E1 compat intf)
6312 kbps
8448 kbps
32064 kbps
34368 kbps
44736 kbps
51840 kbps

On entry, the current frequency for the TX Terrestrial Clock is displayed. Press [

↑] or [↓]

to increase or decrease the frequency. Press to execute the change.