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Fire-Lite MS-2 Instruction Manual

Fire-Lite MS-2
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12 MS-2 & MS-4 Series Manual — P/N 51512:G2 10/18/2011
Product Description Controls and Indicators
Initiating Device Circuits - TB3
Alarm Zones 1 & 2 (MS-2 and MS-4)
Alarm Zones 3 & 4 (MS-4 only)
Power-limited circuitry
Operation: All zones Style B (Class B)
Normal Operating Voltage: Nominal 20 VDC, Maximum 27 VDC
Alarm Current: 15 mA minimum
Short Circuit Current: 40 mA maximum
Maximum Loop Resistance: 100 ohms
End-of-Line Resistor: 4.7K, 1/2 watt (Part #71252)
Standby Current: 4 mA
Refer to the Fire•Lite Device Compatibility Document for listed compatible devices
Notification Appliance Circuit(s) - TB2
1
One NAC on MS-2, two NACs on MS-4
Operation: Style Y (Class B)
Power-limited Circuitry
Normal Operating Voltage: Nominal 24 VDC, Maximum 27 VDC
Maximum Signaling Current: 2.5 amps total with standard transformer. 5.0 amps total (2.5 amp
maximum per NAC) with optional transformer on MS-4 only
Maximum Line Impedance: 1.5 volt drop end-of-line
End-of-Line Resistor: 4.7K, 1/2 watt (Part #71252)
Refer to the Fire•Lite Device Compatibility Document for compatible listed devices
Form-C Relays
Trouble Relay TB5 (fail-safe)
Alarm Relay TB6
Supervisory Relay TB7 (MS-4 only)
Relay Contact Ratings: 2 amps @ 30 V
DC (resistive)
Resettable Special Application Power - TB1
Operating Voltage: Nominal 24 VDC
Maximum Available Current: 500 mA - appropriate for powering 4-wire smoke detectors
(see Footnote 1.)
Power-limited Circuitry
Refer to the Fire•Lite Device Compatibility Document for compatible listed devices
Nonresettable Special Application Power - TB1 (MS-4 only)
Operating Voltage: Nominal 24 VDC
Maximum Available Current: 500 mA (see footnote 1 on page 12.)
Power-limited Circuitry
Refer to the Fire•Lite Device Compatibility Document for compatible listed devices
1.3 Controls and Indicators
Front Panel Membrane Buttons
Acknowledge
Alarm Silence
Reset
1. Total current for resettable power and one Notification Appliance Circuit must not exceed
3.0 amps for the MS-2. Total current for nonresettable power, resettable power and two
Notification Appliance Circuits must not exceed 6.0 amps for the MS-4 (requires optional
second transformer).

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Fire-Lite MS-2 Specifications

General IconGeneral
BrandFire-Lite
ModelMS-2
CategoryControl Panel
LanguageEnglish

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