The Cypress Wiegand Splitter lets you connect 2 readers using the same Wiegand port, or connect 1 reader to 2 panels. The Splitter also lets you connect 2 Wiegand devices with different data voltages or ground potential issues, as it optically isolates data signals between the devices. It is powered with 5 or 12 Vdc, so you can use the reader's power - no separate power supply is required.
