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INSTRUCTION MANUAL
PR7400
Paging Overriding Module
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for choosing another quality product from Amperes Electronics.
PR7400 is a new addition to VC / VP category, which is a module for providing a relay contact whenever a paging is
in progress, as well as converting the 100V line paging audio to line level, all in a box.
The available functions of the unit shall be :
Relay :
NO and NC relay of 1A contact allows local BGM source overriding, bypass local volume controller to allow central
paging to pass through. This is useful during essential paging and whenever 24V DC overriding signal is not available
in the cabling works.
100V - Line audio converter:
When it is required that the central paging to be broadcasted to local speakers utilising the local amplifier / system, it
provides an audio conversion with balanced line audio.
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Table of Contents
Summary of Contents for Amperes PR7400
- Page 1 Amperes Electronics. PR7400 is a new addition to VC / VP category, which is a module for providing a relay contact whenever a paging is in progress, as well as converting the 100V line paging audio to line level, all in a box.
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Page 2: Parts Identifications
An input for connection to the 100V line from central system. 6. BALANCED LINE OUTPUT A standard line level output for connection to an amplifier / pre-amp. 7. RELAY CONTACT Double Pole Double Throw (DPDT) contacts available with 1A rating. PAGE 2 PR7400 | PAGING OVERRIDING MODULE... -
Page 3: Application Schematic
BGM or simple PA. Only essential paging would pass through the localized speakers. As such, PR7400 would be employed to provide overriding of local volume controller ( if available ) and inserting line audio to the mixer. -
Page 4: Connecting The Unit
Volume Controller Local speakers OVERRIDE Add this if connection 10K Ω mic input ch. ( hot and cold ) Mixing amp 100V out To mixer amp high priority input (CH 1) Mixer Amplifier PAGE 4 PR7400 | PAGING OVERRIDING MODULE... - Page 5 3. Local 24V DC ( via power adaptor ) shall be sourced from essential power outlet. Adding a UPS shall be recom- mended to ensure the unit is still operating during power outage at the area. PR7400 | PAGING OVERRIDING MODULE PAGE 5...
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Page 6: Summary Of Features
Adjustable detection sensitivity, relay trigger duration Adjustable line output volume Suitable for remote overriding for installations without 24V DC VC overriding cable Modular for flexible placement of unit such as in cabinets, risers, etc PAGE 6 PR7400 | PAGING OVERRIDING MODULE... -
Page 7: Technical Specifications
Dimensions (mm) 52(W) x 147(H) x 40(D) Weight 200g (excluding power adaptor) Note: The above specifications are correct at time of printing but subjected to changes without prior notice due to product improvements. PR7400 | PAGING OVERRIDING MODULE PAGE 7... -
Page 8: Warranty Conditions
Only Amperes Electronics Service Centres are allowed to make warranty repairs : a list of Amperes Electronics Service Centres may be asked for by the purchaser or send directly to Amperes Electronics Sdn Bhd at 70 Jalan Industri PBP 3, Tmn Perindustrian Pusat Bandar Puchong, 47100, Puchong, Selangor, Malaysia or its authorized dealers.
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