Bosch Appliances Network Card C900V2 User Manual
Conettix C900V2 | Installation Guide | 3.0
Setup
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Bosch Security Systems, Inc. | 8/08 | F01U087780-01
3.4 Fallback
Mode
In fallback operation, the C900V2 connects the
PSTN directly to the dialer, bypassing itself from
the phone circuit. Intercept Mode is maintained
only if the C900V2 processor operates and there
are no errors. Fallback Mode is ensured if a CPU
lockup occurs.
PSTN directly to the dialer, bypassing itself from
the phone circuit. Intercept Mode is maintained
only if the C900V2 processor operates and there
are no errors. Fallback Mode is ensured if a CPU
lockup occurs.
3.5 Dialer
Interaction
Table 8 shows the conditions causing the C900V2
to change to Fallback Mode. The C900V2 returns
to Intercept Mode only when all conditions in the
Intercept Mode Restored column are met.
to change to Fallback Mode. The C900V2 returns
to Intercept Mode only when all conditions in the
Intercept Mode Restored column are met.
Table 8:
Dialer Interaction Forcing C900V2 into Fallback Mode
Condition
Fallback Mode Occurs
Intercept Mode Restored
CPU fails
Immediately
C900V2 restart
Receiver fails
Immediately
Link restored
Receiver does not respond
to last message
to last message
Dialer goes off-hook (disconnected)
Link restored
Intercept Disable Command
On receipt of the command
Intercept Enable command
Intercept Error
If Fallback after intercept error is enabled, the
dialer goes off-hook within two minutes of the
error
dialer goes off-hook within two minutes of the
error
After two minutes
Switch to Fallback command On receipt
One hour or at receipt of Intercept
Enable command
Enable command