M-P2L1-1 EN
Page 32
Release Date: November 15, 2019
Rev 01
5.5.1.4 Delays and linkage of SND/FB by zone
Under this sub-menu, users can program/set the delay on either sounder and fire routing for all zones or set
sounder and fire routing delay separately by zone. User can also link/unlink either sounders or fire routing
per zone. The functions available from this sub-menu are listed as below:
The programmed time range for both sounders and fire routing delay is from 0 to 600 seconds and by
selecting either 0-NO or 1- YES, user can resound sounders if new zone is in alarm:
To link/unlink sounders or fire routing by zone when entering from the sub-menu Link/unlink sounders by
zone and link/unlink fire routing by zone, users can choose whether to activate or not the group depending
on if there’s been an alarm event triggered either by manual call point or detector.
5.5.1.5 Set loop class (A or B)
This menu will allow selecting between Class A or B wiring.
The Draco fire panel supports up to 2 loops in looped (Class A) configuration. When a loop is configured in
class A, the fire panel will monitor the continuity of the loop and report fault if there is any issue in the wiring
from side A to side B.
Loops configured in class B will not report fault if the communication bus is not in looped topology. Therefore,
it will tolerate the usage of stub topology.
Note that local regulations may require that no more than 32 devices are lost in case of a single wiring fault.
Therefore, class B wiring topology may only be used in smaller installations.
Class A is the most robust wiring topology and thus the recommended topology for all installations.
Figure 15: Class Topology
