Power Interface - Honeywell IF1C User Manual

ISO_V+
ISO_V-
GP output 1+

Power Interface

The reader GPIO interface provides 5Vdc at 5mA for powering external inputs and
loads, eliminating the need for an external DC supply and simplifying the system
installation.
The GPIO interface power has an internal thermal fuse that trips if the load
exceeds 0.5A. The fuse is self-recovering after the excessive load is removed.
The total load on the GPIO interface power must stay within the 5mA limit. When
you design a system that uses the GPIO interface power, make sure to complete
a power budget assessment to ensure that the supply is adequate for the system.
If your system needs more than 5Vdc at 5mA, you can connect an external power
supply to the +5V and Ground pins. The external supply powers the external
loads, and that power is available at all +5V pins on the GPIO port.
34
+5 V
GND
GP output 0+
Wiegand Data0
Wiegand Data1
IF1C Fixed RFID Reader User Guide