Case 4: Loop Timing Example - Comtech EF Data DMD50 Installation And Operation Manual

DMD50 Universal Satellite Modem
Set mode to IDR:
Under Mod IF Menu:
Method 2 -
Set Mod strap code to: 101
Demodulator:
Method 1 -
Under Interface Menu:
Set mode to: Closed Net
Under Demod data Menu:
Method 2 -
Set Demod strap code to: 101
E.3.4 Case 4: Loop Timing Example
Method 1 -
Set mode to IBS
MN-DMD50– Revision 3
Under Mod Data Menu:
Set code rate to 3/4 VIT
Set desired Tx frequency and power level
Under Interface Menu:
Under Mod IF Menu:
Turn IF on
Set Buffer Size
Under Demod IF Menu: Set desired Rx frequency
Set code rate to 3/4 VIT
Under Interface Menu:
Set Interface type
Under Demod IF Menu: Set desired Rx frequency
Under Interface Menu:
Under Tx Setup Menu:
Set INTF to RS-422
Set SCT Source to SCR
Set Tx Clock to SCTE
Set Framing for 1/15
Turn IF ON
Set Interface type
Set Tx clock selection
Set desired Tx frequency and power level
Set Interface type
Set Buff clock selection
Set Framing for 1/15
Set Buff clock selection
Set Buffer Size
Strap Codes
E–9