Quantum and Evolution Series Installation and Operating Handbook
7-151
The following modes are supported.
SW3:
1 2 3 4
Mode
Description
0 0 0 0
Transparent
Card functions as standard Q302
0 1 0 0
Trans CRC4
As above with CRC4 multi-frame in TS0 bit 1
1 0 0 0 TS1-31 Invert
Data through the modem is inverted
1 1 0 0 TS1-31 CRC4
As above with CRC4 multi-frame in TS0 bit 1
1 0 0 1 TS1-31 Bit Invert
Data bits 1, 2, 5 and 6 are inverted
1 1 0 1 TS1-31 Bit CRC4
As above with CRC4 multi-frame in TS0 bit 1
1 0 1 0 TS1-15, 17-31 Invert
Data through the modem is invertedTS16 -
Channel Associated Signaling support
1 1 1 0 TS1-31 CRC4
As above with CRC4 multi-frame in TS0 bit 1
1 0 1 1 TS1-15, 17-31 Bit Invert
Data bits 1, 2, 5 and 6 are inverted TS16 -
Channel Associated Signaling support
1 1 1 1 TS1-15, 17-31 CRC4
As above with CRC4 multi-frame in TS0 bit 1
1 = switch on, 0 = switch off
When transparent TS16 options are selected and the P300/Quantum/Evolution are in
drop and insert mode, the modems must be set to maintain timeslot identities if TS16 is
part of the drop and insert group.
Edit-Unit-Advanced-Special Modes Spoof Screen
This option allows full connectivity of a PCM bearer to be `spoofed` even if the link is
connected over satellite via a `thin route` (i.e. less than the full PCM bearer using Drop &
Insert). If enabled the following features of the PCM system appear transparent end–to-
end:
1. AIS (all ones)
2. Backward Alarm
3. CAS Backward alarm (G.732 only)
Note that when enabled, AIS is forced over the whole PCM bearer and so this option
should not be used with cascaded Drop & Insert, where AIS from the second modem in a
cascade would cause the inserted data from the first in the cascade to be lost.
Options:
No
Normal, non spoof operation.
Yes
Spoof 2M AIS & BA transparency
[Yes]
New: [No]
Содержание Quantum
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Страница 348: ...Quantum and Evolution Series Installation and Operating Handbook 13 20 Modem Error Probability versus Eb No 16QAM Turbo...