Comtech EF Data CDM-625A Installation And Operation Manual page 664

CDM-625A Advanced Satellite Modem
Appendix P
P.3.1 D&I Primary Data Interfaces
When configured for D&I operation, multiplexing/demultiplexing follows the IBS satellite frame
structure and ESC features, but with the following changes:
•
It accepts and outputs primary data through the G.703 connectors.
• The data rate must be at T1 or E1 rates only. This includes additional links for Drop Data
Out and Insert Data In.
•
Clock recovery, dejitter, and encoding/decoding are performed as before.
P.3.2 D&I Framing
The IBS satellite framing/deframing is applied only to selected time slots of the data's G.704
terrestrial structure.
P–4
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MN-CDM625A