24VDC auxiliary power recommendation
Several Vocia PoE-powered devices have an optional DC auxiliary power connection. This note explains how to safely power them using a 24VDC power supply.
Pass-through DC voltage
The supplied current must match or exceed each device's required minimum necessary wattage. Underpowering will damage the power supply unit and is not safe!
In over current conditions, the device will only draw the required current. Excess current will be passed-through.
Always match the power supply unit (PSU) to the device's stated voltage requirement.
Biamp 24VDC power supply
283.0119.900 is the part number for the below power supply Biamp resells. It is rated for 2.5A @ 24VDC
The Vocia amplifiers' 24VDC auxiliary power requires more current and cannot use Biamp's 24VDC 2.5A power supply.
Auxiliary power requirements
If using a generic power supply unit with the following Vocia devices, ensure it is appropriately rated to avoid damaging the PSU.
- GPIO-1 - 15W / 625mA
- POTS-1 - 30W / 1.25A
- VOIP-1 - 30W / 1.25A
- VO-4e - 15W / 625mA
- VI-8 - 35W / 1.45A
- LSI-16/e - 15W / 625mA
Further reading
https://vocia-help.biamp.com/ - Vocia Help File
https://ohmslawcalculator.com/ohms-law-calculator - Ohms Law Calculator