Fire-Lite MS-25E Addressable Fire Control Panel - Manual (Page 48)

Model MS-25 Installation and Operation Manual
4-18 53688
4.10 On-Board Relays (Conventional, Power Limited)
The control panel has two built-in programmable relays and a built-in trouble relay. All relays
are Form C rated at 2.5 A @ 24 VDC Resistive.
4.10.1 Common Trouble Relay
The control panel has a dedicated Form C trouble relay built into terminals labeled
TROUBLE. The relay provides a normally open and a normally closed contact. The trouble
relay will deactivate under any trouble condition. Form C rated at 2.5 A @ 24 VDC Resistive.
Note: The N.C. contact is the relay contact that is closed when the panel has power and there are no alarm or
trouble conditions.
4.10.2 Programmable Relays
The control panel has two Form C programmable relays built into terminals labeled RELAY 1
or RELAY 2. Each relay provides a normally open and a normally closed contact.
To configure one or two programmable relays, follow these steps.
1. Wire Relay 1 and/or Relay 2 as needed for your application. See 4.10.1 for the location of
the relay terminals.
2. Default programming causes Relay 1 to activate for any supervisory. Relay 2 will activate
for any alarm. For relay applications that require different behavior see Section 6.