Biamp GPIO-1 - Manual (Page 8)

8
GPIO-1 SETUP AND USE
Power
Caution - Due to potential energy hazard, connections to the Auxiliary Power 24V DC
inputs must be made by a qualified electrician or other qualified person as
required to conform with all local codes .
The GPIO-1 will be capable of operation from two power supply types - PoE and 24V DC. Any or all power sources may be connected
concurrently. Loss or return of any power source will not result in interruption to operation. PoE power has priority over 24V DC when both
sources are connected. Fault monitoring of each Power Supply input is enabled by default. The Vocia software allows monitoring to be
enabled or disabled on each power supply.
If PoE Power is to be used an 802.3af Class 3 or 802.3at Type 1, Class 3, compliant PoE switch or mid-span adapter is required to either
or both Ethernet ports.
When power is present at either or both of the 24V Aux power inputs the adjacent green power LED indicator will illuminate. When PoE
power is present at either or both of the Ethernet ports the adjacent green power LED indicator will illuminate.
Pin Label Function
1 24V Aux Power 1 24V (+)
2 0V Aux Power 1 24V (–)
3 24V Aux Power 2 24V (+)
4 0V Aux Power 2 24V (–)