Keri Systems Doors.NET Manual - Manual (Page 469)

Doors.NET Reference Manual
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inputs are normal before changing the system state. The system then checks to see if at
least one Global Lock input is active. If one is active, the system will return to the Global
Lock state. If none are active, the system then returns to Normal. If Precedence is set to
Global Lock Has Precedence, then the logic above is reversed and a Global Lock can
countermand an existing Global Unlock state.
Hardware or Software Driven
This application allows either the Hardware or the Software to control a Global Lock-
/Unlock. This allows the software to override to the system without having to rely on all
Global Lock/Unlock hardware inputs to be synchronized. The input hardware should be
some kind of on/off toggle switch. Hardware configuration consists of the doors to be
assigned/unassigned Global Lock/Unlock values and defining the inputs that control
Global Lock/Unlock events. The following graphic shows the Situation Manager para-
meters to set to enable this mode:
All rules from the Hardware Driven ONLY section apply except that the Situation Man-
ager icons can now initiate or clear a Global Lock/Unlock, overriding what the hardware
initiated state may be. This will result in a mismatch between hardware and software.
The hardware inputs must be changed to synchronize the software and hardware states.
Keep in mind, the Situation Manager icons always correctly reflect current state.
NOTE: This mode can be useful for assisting in troubleshooting a system that may have
hardware communication problems.
Advanced Applications Using Local Linkage
The MSC (Mercury Inside) firmware is capable of triggering on Global Lock/Unlock or
Normal state changes using the optional Local Linkage feature. The full local linkage
menu allows you to perform local linkage procedures such as the following:
l
Change selected readers from a Global Lock mode (i.e., Lock, Lock Out, Lock
Down) to a different mode (i.e., Unlocked , Card+PIN, a different Global Lock
mode).
l
Disable access rules for selected access groups while allowing other access
groups to function normally.
l
Toggle a control point to activate a siren, strobe light, or such device.