amperes electronics
PR7400
Remote Paging Overriding Module
PR7400 is a module designed for paging systems, providing both relay activation and audio conversion in a compact unit for easy installation.
Converts 100V line audio to balanced line output
Enables emergency override for local sound systems
Works without a 24V DC override cable
Adjustable sensitivity, relay trigger time & output volume
Introduction
PR7400 is a versatile module designed for paging systems, providing both relay activation and audio conversion in a compact unit.
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Relay Activation: Provides NO/NC relay contacts (1A) to override local BGM and bypass volume controls for priority paging, even without a 24V DC override
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100V Line Audio Converter: Converts 100V paging audio the balanced line level for use with local amplifiers or sound systems for paging broadcasts
Recommended for boutiques, restaurants, function rooms, classrooms, and remote buildings using a 100V line without a 24V DC override. Compact and reliable, PR7400 ensures clear and uninterrupted paging in any system.
Packing information
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Carton size: 110 (L) x 85 (W) x 160 (H) mm
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Gross weight: 0.75kg (Including adaptor)
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1 unit(s) per carton
Introduction
PR7400 is a versatile module designed for paging systems, providing both relay activation and audio conversion in a compact unit.
-
Relay Activation: Provides NO/NC relay contacts (1A) to override local BGM and bypass volume controls for priority paging, even without a 24V DC override
-
100V Line Audio Converter: Converts 100V paging audio the balanced line level for use with local amplifiers or sound systems for paging broadcasts
Recommended for boutiques, restaurants, function rooms, classrooms, and remote buildings using a 100V line without a 24V DC override. Compact and reliable, PR7400 ensures clear and uninterrupted paging in any system.
Packing information
-
Carton size: 110 (L) x 85 (W) x 160 (H) mm
-
Gross weight: 0.75kg (Including adaptor)
-
1 unit(s) per carton
-
PR7400
Power requirements
Voltage
24V DC via local adaptor
Consumption
2.1W (standby) 2.5W (operating)
Input, output, & relay
Paging input
50 / 70 / 100V line
Sensitivity threshold
5 - 80V rms
Detection frequency
80 - 5 kHz
Relay
NC and NO (DPDT)
Relay contact
1A @ 24V DC
Paging load / rating
100W @ 100V
Trigger duration
5 - 18 seconds
Audio output
Line balanced
Output level
Mute -0 dB
Frequency response
150 - 18 kHz +/- 3 dB
Isolation to 100V
37.5 dB
Indicators
Power, Relay trigger, Audio
Connections
Detachable Phoenix
Case
Dimensions (W x H x D)
52 x 147 x 40 mm
Weight
200g exclude adaptor
Note: The specification parameters may be changed, added, or omitted without prior notice.
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Converts any 100V line audio input into a balanced line audio output
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Enables emergency override for local sound systems
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DPDT relay with NC and NO contacts for flexible output configurations
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Adjustable sensitivity, relay trigger time, and output volume
-
Works without a 24V DC override cable
-
Compact design for easy installation in cabinets or risers
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Ideal for boutiques, restaurants, classrooms, and remote buildings
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Example 1: Overriding Local BGM Source
Some zones, such as retail units, restaurants, and theaters, typically operate independently of the central paging system, using their own BGM or simple PA setups. PR7400 ensures essential paging overrides local audio by bypassing volume controllers (if any) and sending line audio to the mixer.
Cross references
Registered association members of



International recognitions


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Sales Office (Malaysia)
70, Jalan Industri PBP 3,
Taman Perindustrian Pusat Bandar Puchong 47100, Puchong, Selangor, Malaysia.
Tel: +603-5882 7757 / 7758
Production Factory (Malaysia)
2, Jalan Meranti Puchong D25@Meranti Puchong 47120 Puchong, Selangor, Malaysia
Amperes Asia Pte Ltd
Export Sales Office - Singapore
(Co Reg: 201102253E)
1, North Bridge Road, #13-03, High Street Centre, Singapore 179094
Sales Office (Malaysia)
70, Jalan Industri PBP 3,
Taman Perindustrian Pusat Bandar Puchong 47100, Puchong, Selangor, Malaysia.
Tel: +603-5882 7757 / 7758
Production Factory (Malaysia)
2, Jalan Meranti Puchong D25@Meranti Puchong 47120 Puchong, Selangor, Malaysia
Amperes Asia Pte Ltd
Export Sales Office - Singapore
(Co Reg: 201102253E)
1, North Bridge Road, #13-03, High Street Centre, Singapore 179094