Paradise Datacom P300 Series Installation & Operating Handbook page 140

in order to carry the CAS (this corresponds to modes defined as 1920kbps in
the service definitions). If selected, the terrestrial multiframe will be acquired,
and CAS removed from/replaced into the Drop/Insert bearer. The CAS will be
conveyed transparently from end to end of the link within IBS (or Custom IBS)
overheads.
Whether or
Change, Tx/Rx, Baseband, Cont', 2048k IBS, G.732, TS Menu
The Modem can re-order the timeslot data in the G.732 frame prior to transmission along with the CAS
signalling if CAS was selected (although this feature is only available if the Extended D/I feature is
available, standard on P300-TCM). This is for services where the equipment at the other end of the link
may require subsets of data in particular timeslot groupings. In some applications this feature can
remove the need for separate Digital Access Cross Connect (DACCs) equipment used simply to re-
arrange timeslots. Typical applications might be with multiple LRE equipments (which may place data in
alternate timeslots), or for multidestinational carriers where the receive equipment needs data for each
location in contiguous timeslots.
If is selected a timeslot edit screen is displayed as follows:
Change, Tx/Rx, Baseband, Cont', 2048k IBS, G.732, Re-order
Menu
This screen allows the operator to change the order of the transmitted timeslots. The screen above
shows groups of timeslots 1-15 and 17-31 swopped in location with 1-15 also reversed (15-1) although
any combination is possible. The selection system works by toggling timeslots or groups of timeslots into
or out of the selection:
Timeslots already in the selection are toggled out from any position of the selection when the
timeslot number is entered.
Timeslots not already in the selection are toggled on, and placed on the end of the selection.
Enter any single timeslot as a single or dual digit, eg 0, 5, 05, 23, 31
Enter groups of timeslots as two pairs eg 02-5 (two through five), 11-17, 12-2
NOTE Timeslots can be arbitrarily re-ordered, and so group selections may be down as well as up eg
11-17 means send in order 11,12,13...17, whereas 17-11 means send in order 17, 16, 15, ...11
Note that TS0 must remain the first selection in IBS G.732 modes, and for CAS, TS16 must also remain
in position.
The Modem hardware is capable of duplication and omission of timeslots, although for simplicity the
operator interface (described above) does not allow such selections. If this is a requirement, please
contact the factory to discuss your needs.
P300H P300 Series Modem Installation and Operating Handbook
is selected, the following prompt appears:
Timeslot re-order option: [?]
1=Normal (linear) 2=Re-order
TS order: 0, 17-31, 16, 15-1
Toggle: ??-?? (YES) Help
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