Figure 1: Common Lobby - Honeywell VISTA-128BPT Installation And Setup Manual

VISTA-128BPT/128BPT-SIA/250BPT INSTALLATION AND SETUP GUIDE
1∗19 Arms Lobby (must be programmed by
partition)
Setting this field to 1 for a specific partition causes
that partition to affect the operation of the
common lobby as follows:
a. The common lobby cannot be armed unless
every partition selected to affect the lobby is
armed.
b. Arming a partition that is programmed to arm
the lobby causes the system to automatically
attempt to arm the lobby.
The following chart sums up how the common lobby partition will operate.
1∗18
Affects
Lobby
Example
Here is an example of how the lobby would react in a typical setup.
User #1 has access to Office #1 and the Common Lobby.
User #2 has access to Office #2 and the Common Lobby.
Office #1 is set up to affect the Common Lobby, but not
arm it.
Office #2 is set up to affect and arm the Common Lobby.
NOTE: In the tables below, the notations in parentheses (
) indicate the current status of the other partition when the
user takes action.
Sequence #1:
User # Office 1
1 Disarms
2 (Disarmed)
1 Arms
2 (Armed)
Notice that in sequence #1, because Office #2 was the last to arm, the lobby also armed (Office #2 is programmed
to affect and arm the lobby). In sequence #2, the lobby could not arm when Office #2 armed, because Office #1,
which affects the lobby, was still disarmed.
When Office #1 armed, the lobby still did not arm because Office #1 was not programmed to arm the lobby. User
#1 would have to arm the lobby manually. Therefore, you would want to program a partition to affect and arm the
lobby if the users of that partition are expected to be the last to leave the building.
1∗19 Disarms when
Arms partition
disarms?
Lobby
0 0
1 0
1 1
0 1
Office 2 Lobby Action
(Armed) Disarms
Disarms No Change
(Disarmed) No change
Arms Arms
If any faults exist in the lobby partition, or if another
partition that affects the lobby is disarmed, the lobby
cannot be armed, and the message "UNABLE TO ARM
LOBBY PARTITION" is displayed.
You cannot select a partition to "arm" the
lobby unless it has first been selected to
"affect" the lobby. Do not enable field 1∗19
without enabling field 1∗18.
Attempts to
arm when
partition arms?
NO NO
YES NO
YES YES
---ENTRY NOT ALLOWED---
Sequence #2:
User
#
2
1
2
1
3-2
Can be armed if
other partitions
disarmed?
YES
NO
NO

Figure 1: Common Lobby

Office 1 Office 2
(Armed) Disarms
Disarms (Disarmed)
(Disarmed) Arms
Arms (Armed)
Lobby
Action
Disarms
(No
change)
No Change
No Change