OWS Standalone Manual
MA380 - Rev. 2.4
Speaker output can be split into a max of 48 individual speaker circuits
3
. Each circuit is
individually supervised for short and open-circuit faults.
Note: Check space availability in the OWS enclosure to mount the 4 Zone Splitter Boards,
it may require larger enclosure.
Optional remote desk microphone with an auxiliary input for background music and PA zone
selection (if 4 Zone Splitter Board is fitted).
3. Fully supervised power supply via AS4428.5 power supply supervision module.
4. Intuitive indications and controls via well-grouped LED indicators and momentary switches.
5. A wide range of quality class-D audio amplifiers.
High power efficient amplifiers with standby input to maximize the power conservation.
The available standard amplifiers are 20W, 60W and 120W. The 250W amplifier is available
on customer’s request.
6. Inputs and outputs available to interface to any CIE.
One supervised trigger input (clean N/O contact) to activate the audible and visual warnings
from the fire panel or from any mechanical trigger device e.g. MCP.
One OWS changeover relay contact output to signal fault condition to CIE.
Two changeover relays contact outputs for power supply fault and power fail provided by
the power supply supervision module to connect to an input in the CIE.
One supervised 24V bi-polarity strobe output to provide alert and evacuation visual
warnings.
1.3 Specifications
Table 1 General Specifications
Feature Specification
Mains Power Supply 230V AC, +/- 20%. Wattage 60W - 320W based on the system power supply requirements.
Battery Backup
2 x 12V SLA batteries 7 or 12 AH. The battery capacity is based on the system power
supply calculations and is limited by the enclosure size.
Trigger Input Supervised N/O clean contact, EOL resistor 47K
Speaker Circuit Supervised 100V RMS speaker output, EOL 47K
Strobe Output Supervised 24V Bi-polarity strobe output fused to 1 Amp, EOL resistor 47K
Fault Output 2 x Changeover clean contact for OWS and PSU fault respectively
Operating Temperature 0°C to +50°C.
PA Microphone Built-in electret microphone
Remote Microphone Terminals for optional remote desk top microphone, single or multiple zone selection
4
Operating Humidity 5-95%, non-condensing.
Enclosure
IP Rating IP31 (estimated)
Material 1.5mm zinc anneal steel powder coated oyster.
Dimension 400mm H x 320mm W x 165mm D
Weight 12Kg Without backup battery,
Compliance ISO 7731, ISO 8201, NZS4512, AS4428.5 and Clause 3.22 of AS 1670.1
3
48 Speaker circuits valid only with SUB860 software V2.0
4
Multiple zone selection requires 4 zone splitter board (SUB999)
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