Conettix C900V2 | Installation Guide | 3.0 Setup
12 Bosch Security Systems, Inc. | 8/08 | F01U087780-01
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.
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.
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
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
After two minutes
Switch to Fallback command On receipt One hour or at receipt of Intercept
Enable command