D1 Voice Rack
Honeywell D1 583381.31 SCU System Communication Unit
- Audio memory stores
- The unit shall have two audio memory stores
- Channels recorded/played simultaneously
- more than 50 channels of audio data to be recorded and played back at the same time – regardless of the available bandwidth from the network
- Connection to dom
- The connection to a Honeywell DOM shall be via Ethernet and shall continuously [monitor]
- Call stacker function
- The unit shall have a call stacker function which will allow announcements to be temporarily stored and played back simultaneously, automatically, and uninterrupted within a particular time limit, when the desired point is released
- Secondary emergency power supply input
- There shall be a secondary 24 V DC emergency power supply input
Overview
What it is and how it fits the system.
The Honeywell System Communication Unit (SCU) is the digital audio memory source for the D1 Voice Alarm / Public Address system. It provides two audio memory stores, records and plays back more than 50 channels of audio data simultaneously, and connects to a Honeywell DOM via Ethernet. A call-stacker function queues announcements, and a secondary 24 V DC emergency power supply input supports resilient operation.
Technical overview
The System Communication Unit (SCU) 583381.31 is the digital audio memory source within the Honeywell D1 Voice Alarm / Public Address system. Sitting among the D1 Voice Rack components, it holds and reproduces recorded audio for emergency and general announcements distributed across the network.
The unit carries a pair of onboard memory stores and can handle well over fifty audio channels at once, capturing and reproducing them together irrespective of the throughput available from the network at any moment. A call-stacker feature briefly holds queued messages and releases them automatically, without a break, once the chosen point is triggered, keeping announcements flowing. The link to a Honeywell DOM is made over Ethernet, giving the SCU a continuous line into the wider system for monitoring and control.
Operational resilience is backed by a backup 24 V DC emergency power feed, letting the unit keep running if the primary supply is lost. The SCU replaces the earlier 583381.22 within the range, and the physical wiring and terminal connections are documented in the installation manual rather than here.
Specifications
Full technical data for this part.
| Audio memory stores | The unit shall have two audio memory stores |
|---|---|
| Channels recorded/played simultaneously | more than 50 channels of audio data to be recorded and played back at the same time – regardless of the available bandwidth from the network |
| Connection to dom | The connection to a Honeywell DOM shall be via Ethernet and shall continuously [monitor] |
| Call stacker function | The unit shall have a call stacker function which will allow announcements to be temporarily stored and played back simultaneously, automatically, and uninterrupted within a particular time limit, when the desired point is released |
| Secondary emergency power supply input | There shall be a secondary 24 V DC emergency power supply input |
Specifications sourced from manufacturer documentation.
Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know
Datasheets & documents
Reference downloads.
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