Structure and function
Function
3
16 | 32
007063_h_en_--
3.3 Function
The line separator FDCL221 is an electronic switch which is mounted on a
FDnet/C-NET detector line.
Figure 3: Use of a line separator FDCL221 on a FDnet/C-NET detector line
The line separator detects short-circuits and open lines on the detector line and
disconnects the negative conductor in the event of a short-circuit. The area of the
detector line unaffected by the short-circuit can continue to be operated.
3.3.1 Behaviour in degraded mode
Applicable for the FDnet/C-NET:
When the main processor of the fire control panel fails, the control panel works in
degraded mode operation. Depending on the control panel type, the fire control
panel can continue to perform the most important alarming and signaling functions
in degraded mode operation.
Degraded mode operation on the FDnet/C-NET is not supported in the same way
by all control panels. The information in the 'List of compatibility' and in the
corresponding control panel documentation must be taken into account during
project planning.
FDCL221
FDCL221-M
Station
