The SK-Control-6 is an addressable notification module for
use with Silent Knight IntelliKnight series fire alarm control
panels (FACPs). The SK-Control-6 provides supervised
monitoring of wiring to load devices that require an external
power supply or amplifier to operate, such as bells, horns,
and strobes. It is capable of supporting Class B (Style Y) and
Class A (Style Z) wiring.
Upon command from the FACP, the SK-Control-6 will
disconnect the supervision and connect the external power
supply across the load device. The disconnection of the
supervision provides a positive indication to the panel that the
control relay actually turned on. The external power supply is
always relay isolated from the SLC loop, so that a trouble
condition on the power supply will never interfere with the
rest of the system.
If needed, you can disable a maximum of three unused
modules on the SK-Control-6 board. Each module has
terminals for connection to an external supply circuit for
powering devices on its notification appliance circuit (NAC).
One or more multiple power supplies or amplifiers can be
The SK-Control-6 has a short circuit protection monitor for
each module. The short circuit protection monitor protects
external power supplies against short circuit conditions on the
NAC. In addition, an algorithm is incorporated to find a short
when the module is active. The module will close all circuits
that are not shorted to find the NAC with the problem.
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