System Sensor MDl Series Installation And Maintenance Instructions

Style Y (Class B) circuits or one Style Z (Class A) circuit.

The zone output(s) from the panel are connected to the

zone inputs of the MDL module and the zone output(s)

from the MDL module are connected to the notification

loop(s). Supervision is accomplished in the module by a di-

rect connection between the zone input and the zone out-

put of each of the two zone circuits connected to the

normal end-of-line device. The FACP "sees" the EOL device

through the MDL module. When either or both outputs

from the module are wired to the SpectrAlert products, the

horns and strobes in both zones will be synchronized.

DC or Full Wave Rectified

11 to 30 Volts

(Note: Supply voltage range at 12 volts – 11 to 17 VDC; at 24 volts – 21 to 30 VDC)

10mA 12mA 30mA 31mA 87mA 122mA

0˚ C to 49˚ C (32˚ F to 120˚ F)

UL S4011, S5512

3825 Ohio Avenue, St. Charles, Illinois 60174

198mA 262mA

The MDL module can be configured so that more than two

zones can be synchronized by the interconnection of the

slave input and output (see Figures 1 and 2).

Zone 1 Input:

This input powers the MDL module. This input

must have voltage present from the FACP be-

fore anything will work. This also supplies volt-

age to Zone 1 output.

Zone 2 Input:

This input only supplies voltage to Zone 2 out-

put. Note: If Zone 1 input is not powered, the

notification devices attached to the Zone 2 out-

put will not be powered.

Horn Control:

This input enables the horns on the SpectrAlert

notification appliances. Voltage present means

horns are enabled. No voltage present means

horns are disabled.

Connects to Master MDL Module slave out.

Connects to Slave MDL slave in.

A Division of Pittway

1-800-SENSOR2, FAX: 630-377-6495

I56-0983-008

Related Manuals for System Sensor MDl Series

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Sync module (2 pages)

Test module (2 pages)

Monitor module and control module (4 pages)

Ten input monitor module (4 pages)

Interface module (4 pages)

Loop test/maintenance module (2 pages)

Input module for two-wire conventional detector (2 pages)

Two-wire conventional detector interface module (4 pages)

Interface module (2 pages)

Relay control module (2 pages)

Monitor module (2 pages)

Conventional zone interface module (4 pages)

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Summary of Contents for System Sensor MDl Series

• Page 1 1-800-SENSOR2, FAX: 630-377-6495 H12/24, HC12/24, MA12/24D, PA400, S12XX, S24XX, SC24XX, P12XX, P24XX, PC24XX, SP2C24XX, SP2R24XX, SP2W24XX, DS2475XXX Add suffix “W” for white models. Refer to System Sensor product installation manuals for model specifications. Specifications Voltage Range: DC or Full Wave Rectified 11 to 30 Volts (Note: Supply voltage range at 12 volts –.
• Page 2 Synchronize SpectrAlert Horns and Strobes Figure 1: • Each module can power two 3-amp circuits wired in NOTE: If zone 1 output of module is connected to strobes class B or one 3-amp circuit powered as Class A. or horn/strobes, zone 1 input supply power must •.
• Page 3 NOTE: The MDL Module is factory set with the sync error Figure 5: Wiring for Coded Supplies contacts in the open state. These contacts may close during shipping. Approximately two seconds SPECTRALERT ANY SPECTRALERT HORN STROBE HORN ONLY after power-up, these contacts will open. MULTI CODE SOURCE TO NEXT.
• Page 4 The strobe must have an unin- terrupted source of dc power in order to operate correctly. System Sensor The signal strobe may not be seen. The electronic visual warning signal recommends that the sounder and signal strobe always be used in combi- uses an extremely reliable xenon flash tube.