Paradise Datacom P300 Series Installation & Operating Handbook page 82

The following menu's depend on the selections made for the Aux & ESC channels
If the ESC port is and the Aux port is set to
overhead assigned to the Aux port:
Change, Tx/Rx, ESC/Aux/BA Define (IBS) Aux usage Menu
The maximum 21/32nds of the overhead is allocated to the Aux channel. This
comprises S16, TS32 bits 1, & 5-8, and TS48. Giving an Aux port synchronous
data rate of 4.375% of the main data rate. If used asynchronously (ie
oversampled as with the INTELSAT definition), the async rate may be up to
1% of the main data channel rate, ie approx 600 Baud at 64kbps.
This option is only available of the `Custom Features` feature is available
(standard P300-TCM). The overhead can be operator assigned to the Aux port,
varying the overhead as defined in the paragraph title "Custom Overhead
Allocation" a few paragraphs further on. If the ESC port is defined as
then this one screen allocates overhead between the Aux and ESC ports.
If the ESC port is set to
menu allows the overhead assigned to the ESC port to be determined.
1=P230 compatible 2=Custom 3=All avail o/h{ after Aux}
Change, Tx/Rx, ESC/Aux/BA Define (IBS) ESC usage Menu
The standard 20/32nds of the overhead is allocated to the ESC and this is
compatible with earlier products such as the P230, P230D/I, and P1300/P1361
combination. The overhead allocated to the ESC is TS16, TS32 bits 5-8, and
TS48. TS32 bit 1 is not used as this is reserved for the INTELSAT low rate
ESC
(on the Aux port if so configured). The ESC port provides an async channel
with
2400 Baud at 64 kbps and 9600 Baud at 256 kbps).
This option is only available of the `Custom Features` feature is available
(standard P300-TCM). A subsequent screen allows the operator to assign the
overhead to the ESC port, varying the overhead as defined in the paragraph
title "Custom Overhead Allocation" which follows. If the Aux port is also set to
and ESC ports.
All the available overhead is assigned to the ESC channel. if the Aux port is
defined as
when the operator has defined the overhead allocated to the Aux port, any
Remaining is allocated to the ESC port. If using the Custom, IBS, Minimum
overhead mode, where the overhead rate varies to accommodate the ESC
Baud rate defined, then setting the ESC to
of the overhead available to the ESC, and lowers the overhead addition to the
minimum possible.
P300H P300 Series Modem Installation and Operating Handbook
Sync Aux circuit o/h usage: [?]
1=Maximum 2:Custom
and the Aux port is set to
Async ESC: [?]
maximum Baud rate approximately the terrestrial rate / 23 (eg usable rates of
then this one screen allocates the overhead between the Aux
then the following menu selects the
then the selection reads
maximises the proportion
,
then the following
, and
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