635/600-SERIES HARDWARE INSTALL GUIDE
Chapter-Page
1-15
1.7.7
The System Described:
The
hardware side of the system
includes controllers (panels) and all field hardware (readers, locks, REXs, etc.) that
make up the access control system. The panels interoperate with the
System Galaxy Software
by sending
event messages over a LAN/WAN network to the Event Server (i.e. Communication Server/PC).
GCS
Services are involved – see figure-2.
The
event messages
are handled by the
GCS Event Service
(running on the Event Server) and are logged to the SG
database and SG monitoring software.
Core GCS Services are involved in routing the messages properly -
see figure-2.
Also see diagram of core services in Chapter 3 Figure 26). The GCS Event Service is described
in Chapter 3 of this manual. GCS Services are explained in-depth Chapter 11 of SG Software Manual.
600-series
controllers initiate the connection
to the Event Server. The panels are grouped into (assigned to)
Clusters,
which are equivalent to a
Loop
in the software, but there is no primary panel in a cluster. Each panel
initiates its own connection to the Event Server. NOTE: A cluster can be thought of as a TCP/IP loop (or
virtual loop); not a hard-wired 422 loop. A panel can send
global events
to other panels in the same
loop/cluster.
The GCS Event Service must be running to support
global events
within the cluster (see Figure 1
below for example of global events).
Figure 3 - Concept Diagram showing how
Global Events
use the GCS Event Service
