Comtech EF Data CDM-425, Installation And Operation Manual

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CDM-425 Advanced Satellite Modem
Revision 0
Front Panel Operation 6–35 MN-CDM-425
6.2.1.6 CONFIG: D&I (Drop & Insert)
Appendix E. CLOCK MODES
AND
DROP & INSERT (D&I)
Sect. 6.2.1.2 CONFIG: Mode
1. Drop & Insert operation is a FAST option.
2. D&I (Drop & Insert) is not available when you select either ACM mode.
If D&I or D&I++ is not selected as the framing mode, the D&I menu branch displays as follows:
Drp-Type= N/A Chan/TS Loop=N (Y/N)
Ins-Type= N/A Chan/TS (

)
6.2.1.6.1 CONFIG: D&I (D&I, D&I++ One-Port Drop and Insert
Framing Mode)
With D&I or D&I++ set as the framing mode, the D&I menu branch displays One-Port D&I
operation as follows:
Drp-Type= T1-D4 Chan/TS Loop=Y (Y/N)
Ins-Type= T1-D4 Chan/TS (

)
On the top line – Use the
◄ ►
arrow keys to select the Drp-Type (Drop-Type); its Chan/TS
(Channel Timeslot); or the Loop .
On the bottom line – Select the Ins-Type (Insert-Type) or its Chan/TS (Channel Timeslot).
For any of these selections, press ENTER to continue on to that selection’s nested menu, and
then use the
▲▼ arrow keys to individually edit those parameters.
When you select Quad Drop and Insert (QDI) or Framed QDI as the framing
mode, the D&I menu branch appears as follows:
Quad D&I (QDI): (E1’s are synchronous)
Drop Insert Sync/Async Clock Mode (

)
See Sect. 6.2.1.6.2 for instructions on using the QDI version of the CONFIG:
D&I menu branch.