Specifications

152 Module 125: Protege GX System Design | Understanding Physical Design
Power Supply Design
Any system is only as good as the power supply behind it.
Wherever possible, the following should be adhered to:
 Module network power should be from a dedicated feed.
 Lock power should be separated from other devices.
 PSU average load should be kept below 75% of rated capacity.
 Batteries should always be connected to the PSU.
Power supply loading calculations should always be carried out to ensure you have enough power to keep your
system running under all conditions.
Device Intelligence
Device intelligence refers to a devices ability (or lack of) to continue functioning if connection to the rest of the
system is lost.
A fully intelligent solution is one that appears to behave in the same manner regardless of whether it is
connected to the rest of the system or not.
Controller Intelligence
The Protege GX Controller is a fully intelligent device. If communications are lost to the server the Controller will
continue to function stand-alone as per the last received configuration.
 Areas can still be armed and disarmed
 Access will still be granted or denied
 Schedules will be followed
 Events will be stored locally
 Off site monitoring will continue to function if a path to the monitoring station is still available
Non-Intelligent Devices
Devices that are designed to expand the Controllers functionality are often non-intelligent. These devices rely on
the Controller for instructions on how to operate. They include:
 Input expanders
 Output expanders
 Keypads
 RDM2 and RDS2 reader expanders
 Analog expanders
These devices will have limited or no functionality if they lose their RS-485 Module Network connection to the
Controller.