Paradise P300 specifications Custom IDR Operation with 2048KBPS Continuous Data, Tx Ts

7.3CUSTOM IDR OPERATION WITH 2048KBPS CONTINUOUS DATA

7.3.1Change, Tx/Rx, Baseband, Continuous, 2048k Menu (IDR)

If Custom IDR operation based on the Low (T1/E1) IDR format has been selected and the continuous data rate is 2048kbps, then the Modem can offer Timeslot Identity Maintenance and Timeslot Re-ordering features (see the section on "Timeslot Identity Maintenance" in Appendix F on page 208). These features are only available if the Extended D/I feature is available (standard on P300-TCM). Note that this is only offered under Custom IDR to simplify normal IDR menu operation, but Custom IDR can be selected with all the possible custom features set to `Normal` to allow normal IDR operation, but with Timeslot ID Maintenance & Re-ordering. The following screen is displayed when configuring the Tx path:

	2048k IDR mode: [?] 1=Normal
	2=Align frame for Rx TS re-order 3=Tx TS re-order
	Change, Tx, Baseband, Continuous, 2048k IDR Menu
NORMAL	Any format within the data is ignored, and data is randomly aligned within the IDR
	frame (as per normal IDR operation)

ALIGN FOR RX A terrestrial G.732 frame format is acquired, and is aligned within the IDR frame to allow the receive equipment to re-order the timeslots (if so set). Other than aligning the terrestrial frame within the satellite IDR frame the Tx data is unaffected.

TX TS

RE-ORDERThis selection leads onto a screen identical to that for IBS G.732 re-ordering (as described in the last `screen shot` and paragraphs of the previous section) which allows the timeslots to be arbitrarily re-ordered prior to transmission. The final re- ordered G.732 frame is frame aligned within the satellite IDR frame, allowing the receive path also to re-order on reception as well (although if both end re-order, it might get just a tad confusing !).

The corresponding following screen is displayed when configuring the Rx path:

	2048k IDR mode: [?] 1=Normal
	2=Re-order Rx TS (if Tx TS frame aligned !)
	Change, Rx, Baseband, Continuous, 2048k IDR Menu
NORMAL	The data formatting within the IDR frame is ignored and fed out as a 2048kbps
	stream as per normal IDR operation.

RE-ORDER RX This option only functions if the corresponding Tx path is set for `ALIGN FOR RX`. In this case the Modem relies on the incoming G.732 frame being aligned within the satellite IDR frame in order to locate and re-order the G.732 timeslots. This selection leads onto a screen identical to that for IBS G.732 re-ordering (as described in the previous section for IBS G.732 operation on page 138) which allows the timeslots to be arbitrarily re-ordered prior feeding to the terrestrial output.

P300H P300 Series Modem Installation and Operating Handbook Page 139