Installation & Operation Manual Merlin GDP2X
AGSGDP2X - IOM Iss: 3 03-20
7
DETECTOR CHAIN TERMINATION
Example 1.
Example 2.
FIRE PANEL
The terminal for fire alarms is detailed on the circuit board as [FIRE PANEL].
HEAT SENSOR
The terminal for heat sensors/ thermal
links is detailed as [HEAT SENSOR].
EM STOP
Connections for remote emergency
shut-off or stop buttons is detailed on
the circuit board as [EM STOP].
These terminals are volt free and fitted
with links to represent a closed circuit.
DETECTOR Chain Termination Resistor Switch
Signal communication issues may occur where the bus length is too long or high baud rates
are used. In this instance – terminating at each end of the chain may help the quality of the
data signal. To do this - turn on the [CHAIN TERMINATION RESISTOR] switches shown below.
