ADT-LCD40 Series Annunciators SW1 DIP Switch Settings
10 Document 50520 Rev D 7/25/00 P/N 50520:D
1.3 SW1 DIP Switch Settings
The Up position on DIP switch SW1 is the Off state. Refer to “DIP
Switch Settings Example” on page11, for an explanation of DIP switch
positions. SW1 switch settings follow:
1 - On (Down) = Receive/Transmit, Off (up) = Receive Only.
Set switch 1 to Off (Up) position for all ADT-LCD40 Series Annun-
ciators except the last (or only) annunciator on the EIA-485 loop.
Set switch to On (Down) position for the last or only annunciator on
the EIA-485 loop to allow transmission of a supervision signal (and
function switch depressions on the ADT-LCD40) back to the FACP.
The last or only annunciator must be set for Receive/Transmit
(switch 1 in the Down position).
A break (open circuit) in the power or EIA-485 connections creates
an ADT-LCD40 Series Annunciator fault at the Unimode 200 panel.
All annunciators before the break will continue to display informa-
tion (but the function switches on the ADT-LCD40 will no longer
operate).
2 - ADT-LCD40 Only (not used on the ADT-LCD40L)
On (Down) = Key-switch enabled, Off (Up) = Key-switch disabled.
Switch 2 set to the On (Down) position enables key-switch
operation. The key-switch may now be used to enable the
ADT-LCD40 membrane switches, allowing remote switch func-
tions, or lockout the switches, preventing remote switch functions
Switch 2 set to the Off (Up) position disables the key-switch
operation. Refer to “Switch Functions for ADT-LCD40 Only” on
page 14, for key-switch funct ion description.
3 - On (Down) = Piezo sounder enabled, Off (Up) = Piezo sounder
disabled.
CAUTION: Piezo sounder must not be disabled without prior
approval of the Local Authority Having Jurisdiction (LAHJ).
4 through 8 = Future use.