ADEMCO VISTA-128B User's Guide download pdf (Page 25)

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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

Lobby

Partition Arms

Lobby

Disarms When

Partition Disarms

Attempts to Arm

When Partition

Arms

Can Be Armed if

Other Partitions

Disarmed

NO NO NO NO YES

YES NO YES NO NO

YES YES YES YES NO

NO YES ---ENTRY NOT ALLOWED---

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 79 80

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ADEMCO VISTA-128B User's Guide Page 25

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