I just came across some Pyrotronics-branded Electro Vox components on eBay. Unlike the parts featured in the photos I previously posted, these Pyrotronics-branded parts are all black and feature some very slight differences with respect to the indicators and controls.
Here are a few of the components:
- Siemens VM-321 Fire Alarm Voice/Tone Control Panel Card | eBay VM-321 voice/tone control module (I believe this module can be seen at the right of the voice evac system’s cabinet in the photo I previously posted)
- Siemens VA-300A Fire Alarm Trouble User Interface Card | eBay VA-300A trouble module (looks like I was wrong about the model number in my initial post)
- https://www.ebay.com/itm/Siemens-Cerberus-Pyrotronics-VMN-301A-Fire-Alarm-Microphone-Unit/114037332559?hash=item1a8d279a4f:g:a~kAAOSwTYZeB6QX VMN-301A microphone (once again, the model number in my initial post was wrong)
- Siemens VM-310A Fire Alarm Speaker Select Card | eBay VM-310A speaker selection module
- Siemens Voice/Tone Control Panel Telephone Card | eBay Telephone module
- Siemens WPN-301 Fire Alarm Warden's Page Module | eBay WPN-301 warden’s page module
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Thanks for these links! I’ve never seen those before.
All of these components look like they’re built to fit inside a System3 cabinet. Lord, if only we could find the data sheets…