Case Communications syncro 1496, Reference Manual

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Format set to V.22bis 2400 bps 005
Format set to V.29 4800 bps 013
Format set to V.29 7200 bps 014
Format set to V.29 9600 bps 015
Format set to V.32 4800 bps 021
Format set to V.32 9600 bps 022
Format set to V.32 9600 bps TCM 024
Format set to V.33 12000 bps TCM 027
Format set to V.33 14400 bps TCM 028
Format set to V.32bis 12000 bps 035
Format set to V.32bis 14400 bps 036
Format set to V.32bis 7200 bps 037
*S16
Last Loopback Test Result
*S16 is used to store the last test result produced by the modem
when performing an AL or RDL with self test. This byte is only
updated when another test result is received.
When a test starts, this value is set to 000. While the test is in
operation this counter will be updated every time an error is
detected, allowing a user to monitor the state of a test.
*S17 Dial Backup Progress Monitor
*S17 is used to map the progress of automatic dial backup and
restoral operation, as below:
Bit 0 Definition
0 Normal leased line operation
1 Leased line failed, automatic dial backup in progress
Bit 2 Bit 1
0 0 Leased line stopped, AT command backup requested
0 1 Leased line stopped, Manual dial backup requested
1 0 Future use
1 1 Leased line failed, DCD timeout
Bit 3 Bit 4
0 0 Line 1 awaiting dial backup call
0 1 Line 1 dialling call
1 0 Line 1 call failed
1 1 Line 1 call connected
X450-310851 Issue 2 7-14 Rev.0