MS-9050 Series Manual — P/N 52413:F 10/22/2010 195
Central Station/Remote Station Transmitter: Connection to FACP Dry Contacts NFPA Standard-Specific Requirements
C.1 Central Station/Remote Station Transmitter: Connection
to FACP Dry Contacts
The dry contacts of the FACP programmable relays can be used to trip a UL-864 Listed Central
Station/Remote Station Transmitter. The FACP contacts must be supervised by the Central Sta-
tion/Remote Station Transmitter module using End-of-Line Resistors (ELRs) with a value deter-
mined by the Transmitter manufacturer. Power is also provided by the Central Station/Remote
Station Transmitter manufacturer. Refer to the Central Station/Remote Station Transmitter manu-
facturer’s manual for details.
Figure C.4 FACP Dry Contacts Connection to Central Station/Remote Station Transmitter
Typical Central Station/Remote Station Transmitter Module
Typical Input Zone Triggers
MS-9050UDMain Circuit Board
Alarm
Trouble*
Supervisory
*Note: The Trouble Relay is a fail-
safe relay. With power applied to
the FACP and no troubles in the
panel, the wiring should be
connected to the NO and C contacts
as indicated in the illustration.
ms9050UDdryxmit.wmf
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