ADEMCO VISTA-128B, Installation And Setup Gude, Page: 20 / 208

VISTA-128B Installation and Setup Guide
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In the tables below, the notations in parentheses ( ) indicate the current status of the other
partition when the user takes action.
Sequence #1:
Office 1 Office 2 Lobby Action
User #1: Disarms (Armed) Disarms
User #2: (Disarmed) Disarms No Change
User #1: Arms (Disarmed) No change
User #2: (Armed) Arms Arms
Sequence #2:
Office 1 Office 2 Lobby Action
User #2: (Armed) Disarms Disarms
User #1: Disarms (Disarmed) (No change)
User #2: (Disarmed) Arms No Change
User #1: Arms (Armed) No Change
Notice that in sequence #1, since 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.
How User Access Codes Affect the Common Lobby
Codes with Global Arming
If a code is given "global arming" when it is defined (see the User Access Codes section), the
keypad will ask "Arm all?" or "Disarm all?" whenever the user tries to arm or disarm the
partitions he has access to from an alpha keypad. This allows the user to choose the
partitions to be armed or disarmed, and so eliminates the "automatic" operation of the lobby.
Keep in mind, however, that if attempting to arm all, and another "affecting" partition is
disarmed, the user will not be able to arm the lobby, and the message "UNABLE TO ARM
LOBBY PARTITION" will be displayed.
Codes with Non-Global Arming
If arming with a non-global code, the lobby partition operation will be automatic, as
described by fields 1*18 and 1*19.
Other Methods of Arming/Disarming
Lobby logic remains active when arming or disarming a partition that affects and/or arms the
common lobby in one of the following manners:
•
Quick-Arm
•
Keyswitch
•
Wireless Button
•
Wireless Keypad