Comtech EF Data CDM-625A - Page 160

CDM-625A Advanced Satellite Modem MN-CDM625A
Front Panel Operation Revision 4
6–36
CONFIG: D&I  Drp-Type or Ins-Type
Appendix E.6 Frame Formats
The available Frame Format types for Drop or Insert are:
Frame Format (Type)
Description
T1-D4
T1 D4 Framing
T1-ESF
T1 Extended Super Frame Framing
E1-CCS
E1 Common Channel Signaling Framing
E1-CAS
R1 Channel Associated Signaling Framing
Use the
▲▼ arrow keys to select the desired Drop-Type or Insert-Type. Press ENTER.
CONFIG: D&I  (Drop or Insert) Chan/TS (Channel Timeslots)
Drp-Ch: 1
TS: 01
Ins-Ch: 1
TS: 01
Use the
▲▼ arrow keys to select the number of Drop or Insert Channel Timeslots, from na to 24.
Press ENTER.
The number of available Channel Timeslots depends on the data rate:
• If the data rate is 1920 kbps and the framing is D&I, then only the E1 formats are available
and the Chan/TS menus are disabled. This is the ‘Fixed Channel Mode’ where all timeslots
are allocated in order. D&I++ does not have ‘Fixed Channel Mode’.
•
If the framing is D&I and Drop/Insert Type is E1-CAS, Timeslot 16 is used solely for CAS
signaling and therefore may not be allocated for traffic data.
CONFIG: D&I  Loop
Select Loop to tie Drop Data Out (DDO) to Insert Data Input (IDI) without having to externally
connect cables to these ports. Use the
▲▼ arrow keys to select Y(es) or N(o) for the Loop
feature.