Edwards Signaling eFSA250 - Manual (Page 44)

Chapter 2: Front panel programming
32 E-FSA64 and E-FSA250 Technical Reference Manual
Getting started
You can program the system using the command buttons on the front panel, or a
PC with the optional configuration utility (CU), or both. If you plan to use the
configuration utility, refer to the Help system for complete programming
instructions.
What is a zone?
A zone is a collection of points that are grouped together in the project database
in the same manner that the system designer divided the protected premises.
Zones provide a single zonal response and are used to limit the number of event
messages processed by the system. Firewall designations, planned evacuation
criteria, architectural design, and other factors determine how points are grouped
into zones.
What is a correlation group?
A correlation group is a collection of inputs that activate a collection of outputs.
During loop configuration, input devices, zones, and events are correlated with
NACs and other output devices.
Output activations depend on the activation count and delay options. The
activation count controls the number of input activations that are required to
activate the group’s outputs. The delay controls the number of seconds the
system waits before activating the group’s outputs. For example:
• When the correlation group’s activation count is 1 (default), the activation of
any input device in the group turns on every output device in the group.
• When the activation count is 3, every output device in the group is activated
when at least three input devices activate.
• When the correlation group’s activation count is 3 and three or more input
devices turn on, the system waits the delay time before activating the group’s
outputs.