Comtech EF Data CDM-625A Installation And Operation Manual page 160

CDM-625A Advanced Satellite Modem
Front Panel Operation
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)
T1-D4
T1-ESF
E1-CCS
E1-CAS
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:
Ins-Ch:
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
feature.
Description
T1 D4 Framing
T1 Extended Super Frame Framing
E1 Common Channel Signaling Framing
R1 Channel Associated Signaling Framing
1
TS: 01
1
TS: 01
▲▼
arrow keys to select Y(es) or N(o) for the Loop
6–36
MN-CDM625A
Revision 4