Description
Drive up to 40 Valcom one-way amplified speakers over a 25-volt speaker line from a single InformaCast-integrated IP amplifier with the VIP-851-25-IC, a 20-watt PoE+ SIP gateway with relay output, VOX input, and automatic AUX music muting during pages.
The Telecom Spot Expert Review
The VIP-851 series bridges the IP network to analog 25V speaker lines — it receives the page from the SIP phone system or InformaCast server and drives the downstream speaker run. One unit handles up to 40 Valcom one-way amplified speakers, making it practical for large speaker zones. The AUX input mutes background music automatically when a page arrives. Front-panel LEDs indicate PoE+ status and supervision faults without opening the enclosure. The IC suffix adds InformaCast priority routing.
Key Features
- Native InformaCast for emergency and priority broadcasts
- 20-watt output on 25-volt speaker line
- Drives up to 40 Valcom one-way amplified speaker assemblies
- 1 audio input, 2 audio outputs
- 1 Form C relay output
- PoE+ 802.3at powered (no local power supply needed)
- Contact closure or VOX audio input operation
- AUX music input mutes automatically during pages
- 1 SIP identity for registration to VoIP telephone system
- Front-panel PoE+ and supervision fault indicators
- Removable screw terminal connectors for audio and relay
Technical Specifications
| Model | VIP-851-25-IC |
|---|---|
| Output Power | 20 Watts |
| Speaker Line Voltage | 25V |
| Speaker Load | Up to 40 Valcom One-Way Amplified Speakers |
| Audio Inputs | 1 (VOX / Contact Closure) |
| Audio Outputs | 2 |
| Relay Output | 1 x Form C |
| Power | PoE+ 802.3at |
| Protocol | SIP / InformaCast |


