Output Circuits
Installation
GF505 & GF510 Series PN 53164:A 3/26/2007
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2.4.4 Remote Synchronization Output
Synchronization is a feature that controls the activation of notification appliances in such a way that
all devices will turn on and off at exactly the same time. This is particularly critical when
activating strobes which must be synchronized to avoid random activation and a potential hazard to
individuals. Devices connected directly to the control panel’s NAC can be synchronized as
described in "Synchronized NAC Operation" on page 65.
Notification appliances connected to remote power sources may require synchronization with the
FACP’s devices. For the GF505 & GF510, the Remote Sync Output is not required.
Synchronization for remote power supplies is provided directly from NAC1 (Out 1). Note that
NAC 1 (Out 1) must be programmed for sync operation when used for this purpose.
The Remote Synchronization Output is power-limited and supervised and requires a 4.7K
Ω
ELR
resistor at the remote power supply end of the wiring.
Remote Power Supply
FACP main circuit board
4.7K
Ω
ELR
Sync Input
Remote Sync Output
Figure 2.10 Remote Sync Output