P300H P300 Series Modem Installation and Operating Handbook Page 61
TS identity will be maint ained over
satellite by TS32 Multif rame (YES)
Change, Tx/Rx, Baseband, Drop/ Insert, Ident Menu
TS identity over sat ellite: [?]
1=Normal (maintain) 2=Don’t care
Change, Tx/Rx, Baseband, Drop/ Insert, Maint' Menu
Following either of these selections, the Modem counts how many timeslots are being accessed and
determines how to maintain the Timeslot identity. Refer to t he section on "Timeslot Identity Maintenance"
in Appendix F on page 208. Wherever poss i ble the M odem resolves the issues itself, but where there might
be a compatibility issue betw een different modem vendors the modem prompts the operator for input.
If operating with a G.732 bearer and CAS is selected, then the timeslot identity will be maintained
by the satellite CAS Multiframe used to convey the CAS signalling. No user input is required
If operating with a T1-D4 or T1-ESF bearer and RBS is selected, then the modem will maintain the
Timeslot (and RBS) identity using the normal TS3 2 Multifram e if possible, and if not it will activate
a satellite CAS multiframe to support the RBS. No user input is required
If no signalling (CAS or RBS) are activ e, then the M odem will maintain the timeslot identity by using
the satellite TS32 multiframe w here possible (unless N, the number of dropped/inserted timeslots
falls into the category of `Odd values of N`). It will indicate as follows to which the operator just
answers YES to accept the information:
If no signalling (CAS or RBS) is active and the value of `N` of dropped and inserted timeslots falls
into the category of `Odd values of N`, t hen it is not possible to maintain the timeslot identity using
the satellite TS32 multiframe. The `Odd values of N` are
N = 7, 9, 11, 13, 14, 17, 18, 19, 21, 22, 23, 25, 26, 27, 28, 29, 31
If this is the case and the Extended D/I feature is available (standard P300-TCM) t hen the modem
prompts to see if timeslot ID maintenance is required:
NORMAL
(MAINTAIN) T he Modem will activate the satellite CAS m ultifram e in order to provide timesl ot
ID maintenance for the `Odd value of N` selected. Note that this mode may not
be compatible with ot her manufacturers IBS/SMS equipment, as this is a s pecial
feature o f the P300 and P400 series modems (which is why it asks you the
question, instead of just getti ng on with it !).
DON'T CARE Timeslot ID will not be maintained and the Modem wi ll be compatible with other
manufacturers equipment for these `Odd values of N`.
This is the end of the Drop/Insert dialogue when in Closed Net Plus ESC, IBS or CUSTOM IBS modes