Honeywell VISTA-128SIA, VISTA-250BP, VISTA-128BP manual Common Lobby Operation

Accessing Other Partitions (cont’d)

Common Lobby Operation

When an installation consists of a partition that is shared by users of other partitions in a building, the shared partition may be assigned as a “common lobby” partition for the system. An example of this might be in a medical building where there are two doctors and a common entrance area.

This option employs logic for automatic arming and disarming of the common lobby. Partitions may be set to affect and/or attempt to arm the common lobby. This will affect the way the lobby will react when arming or disarming activity occurs in another partition.

Partitions that affect the lobby will cause the following to occur:

a.When the first partition that affects the lobby is disarmed, the lobby will also be disarmed.

b.The common lobby cannot be armed unless every partition selected to affects the lobby is armed.

c.Arming the last partition that affects the lobby will not automatically attempt to arm the lobby.

Partitions set to arm the lobby will cause the following to occur:

a.When the first partition that affects the lobby is disarmed, the lobby will also be disarmed.

b.The common lobby cannot be armed unless every partition selected to affects the lobby is armed.

c.Arming the last partition programmed to arm the lobby will automatically attempt to arm the lobby. If any faults exist in the lobby partition, or another partition that affects the lobby is disarmed, the lobby cannot be armed, and the message “UNABLE TO ARM LOBBY PARTITION” will be displayed.

The following chart summarizes how the common lobby partition will operate:

Partition Affects	Partition Arms	Disarms When	Attempts to Arm	Can Be Armed if
Lobby	Lobby	Partition Disarms	When Partition	Other Partitions
			Arms	Disarmed
NO	NO	NO	NO	YES
YES	NO	YES	NO	NO
YES	YES	YES	YES	NO
NO	YES	---ENTRY NOT ALLOWED---

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