D&I Sample Configurations And D&I Clock Setup Options - Comtech EF Data DMD50 Installation And Operation Manual

DMD50 Universal Satellite Modem
H.2.4 D&I Sample Configurations and D&I Clock Setup Options
The following are several examples of how to configure the modem for D&I. Also, refer to
Figures 3-14 through 3-17 for the D&I Clocking Setup Options Available.
Example 1:
Drop 512 Kbps from a T1 trunk, 3/4 Rate Viterbi
Under Interface:
Under Modulator:
Under Modulator:
Under Interface:
Under Modulator:
Under Demodulator:
MN-DMD50– Revision 3
Drop 512 Kbps from a T1 trunk, 3/4 Rate Viterbi
Insert 512 Kbps into a T1 trunk, 3/4 Rate Viterbi
Under TX Setup:
Set Tx Type according to your hardware configuration (example:
G703BT1B8ZS)
Set Tx Clock = SCTE
Under Tx D&I:
Set Drop Mode = T1-D4
Use SATCh TS edit capability to define desired mapping of
Satellite Channels to drop Terrestrial Slots
Use Map Copy to copy Tx Edit to Tx Active
Under Mod Data:
Set Data Rate = 512000
Set Conv Enc = 3/4 Rate VIT
Set Network Spec. = Drop & Insert
Under TX Setup:
Set Tx Type according to your hardware configuration (example:
G703BT1B8ZS)
Set Tx Clock = SCTE
Under Tx D&I:
Set Drop Mode = T1-D4
Use SATCh TS edit capability to define desired mapping of
Satellite Channels to drop Terrestrial Slots
Use Map Copy to copy Tx Edit to Tx Active
Under Mod IF:
Set Frequency to desired value
Turn IF Output Power On
Under Demod Data:
Set Data Rate = 512000
Set Conv Enc = 3/4 Rate VIT
Drop and Insert (D&I)
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