Custom Idr Operation With 2048Kbps Continuous Data; Change, Tx/Rx, Baseband, Continuous, 2048K Menu (Idr) - Paradise Datacom P300 Series Installation & Operating Handbook

7.3

CUSTOM IDR OPERATION WITH 2048KBPS CONTINUOUS DATA

7.3.1

Change, 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 212).
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:
2=Align frame for Rx TS re-order 3=Tx TS re-order
Change, Tx, Baseband, Continuous, 2048k IDR Menu
Any format within the data is ignored, and data is randomly aligned within the
IDR frame (as per normal IDR operation)
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.
This 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:
Change, Rx, Baseband, Continuous, 2048k IDR Menu
The data formatting within the IDR frame is ignored and fed out as a 2048kbps
stream as per normal IDR operation.
This option only functions if the corresponding Tx path is set for `
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
140) which allows the timeslots to be arbitrarily re-ordered prior feeding to the
terrestrial output.
P300H P300 Series Modem Installation and Operating Handbook
2048k IDR mode: [?] 1=Normal
2048k IDR mode: [?] 1=Normal
2=Re-order Rx TS (if Tx TS frame aligned !)
`. In this case the Modem relies on the incoming G.732 frame being aligned
Page 141