Comtech EF Data OM20 User Manual
Page 192

OM20 Universal Outdoor Modem
Appendix E
MN-OM20– Revision 5
E–10
Under Interface:
Under TX Setup:
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 Modulator:
Under Mod IF:
Set Frequency to desired value
Turn IF Output Power On
Under Demodulator:
Under Demod Data:
Set Data Rate = 512000
Set Conv Enc = 3/4 Rate VIT
Under Demodulator:
Set Network Spec. = Drop & Insert
Under Interface:
Under RX Setup:
Set Buff Size to desired depth
Under Rx D&I:
Set Insert Mode = T1-D4
Set T1 E1 Frm Src = External
Use SATCh TS edit capability to define proper mapping of
Satellite Channels to insert Terrestrial Slots
Use Map Copy to copy Rx Edit to Rx Active
Under Demodulator:
Under Demod IF:
Set Frequency to desired value
Example 2:
Multidestinational Remote Site Programming
Drop 512 Kbps from a T1 trunk, 3/4 Rate Viterbi.
Extract 512 Kbps from a 1536 Kbps carrier and insert into a
T1 trunk, 3/4 Rate Viterbi.
Drop 512 Kbps from a T1 trunk, 3/4 Rate Viterbi
Configuration setup is exactly as previously shown in Example 1.
Extract 512 Kbps from a 1536 Kbps carrier and insert into a T1 trunk, 3/4 Rate Viterbi
Under Interface:
Under RX Setup:
Set Rx Type according to your hardware configuration