Galaxy Control Systems 635 Series Installation/Configuration Manual page 173

Firewall
Flash
GCS Client Gateway
service
GCS Communication
service
GCS DBWriter service
GCS Event service
GCS Loader
GCS SysID
600-SERIES HARDWARE MANUAL
Appendix L - List of Terms
A software application that blocks or allows certain ports according to how it is
programmed or set up. System Galaxy uses 5010, 4000, 4001, 4002, 4003, 1433
The act of loading flash code to the controller CPU; or the code itself.
GCS Client Gateway Service is a System Galaxy background service that handles
communications between the Client (software) application and the GCS Communication
Service. The Client Gateway is responsible for converting binary communications into
human-readable messages, which are displayed in the Event screen. This service is also
responsible for verifying the client initial connection at start up to the database. This
service maintains an IP connection to the Client software and the Communication
Service and an ODBC connection to the database. If this panel goes offline the
software monitoring screen will not display live events but the events will be
available from reports/the database, provide the other services are online.
GCS Communication Service is a System Galaxy background service that handles
communications between the GCS Client Gateway, GCS DBWriter Service, and GCS
Event Service (for 600 hardware). The Comm Service is responsible for making and
maintaining an IP connection to the GCS Event. (note: Comm Service also makes and
maintains connections to the 508i-series primary controller (if present)). This service
maintains an ODBC connection to the database. IF this service looses connectivity
to the DBWriter, it may drop its connection to the Event Service and 508i-panels.
This allows the panels to buffer events in memory until the database connection is
restored. Panels function locally, independently while offline from the database. stored
events are re-transmitted when connection to the database is restored. These events
may display in the event screen if the software is up when connectivity is restored.
GCS DBWriter Service is a System Galaxy background service that handles
communications between the GCS Comm Service and the Database Engine Service.
The DBWriter Gateway is responsible for logging events to the database and confirming
the event transmission is logged. This service maintains an IP connection to the
Communication Service and the Database engine service and an ODBC connection to
the SG database.
GCS Event Service is a System Galaxy background service that handles
communications between the GCS Comm Service and the 600-series Controllers. The
Comm Service is responsible for making and maintaining an IP connection to the GCS
Event Service. Note: the 600-series Controllers are responsible for connecting to the
Event Server Service. IF this service goes offline, panel to panel communications
(global events) will not occur. Events will buffer at the panel until the Event
Server/Service is online.
the System Galaxy software module that is used to load flash code and data/settings
from the System Galaxy database into the controller/panel.
GCS SysID is the system ID that is needed for System Galaxy Client software to connect
to the database. In System Galaxy 8, the SysID is part of the GCS Client Gateway
service. Therefore GCS Client Gateway must be running for the software to startup and
operator be able to log in.
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