521 East 3
rd
Street Mt. Vernon, NY 10553 • www.keydigital.com
Rev 1.1
– Jul, 2022
5
Quick Connection Guide
Begin with the Tx and Rx units and all input / output devices turned off with power cables removed
1. Connect your HDMI source to the input port of the Tx unit.
2. Connect your HDMI display to the output port of the Rx unit.
3. Connect your local monitor / AV Receiver to the HDMI pass-through port of the Tx unit.
4. Connect a CAT5e/6 cable between Tx and Rx unit. Use 568-B termination.
5. Connect IR emitter from the IR Out port of the Tx or Rx unit and mount over the IR receptor of the
device you wish to control.
6. IR Input is specific on the Tx and Rx unit.
a. The Tx unit supports hard-wired / serial IR connections only with the following pinout:
b. The Rx units supports connection with the included IR Sensor only. Mount the sensor in a
location to easily collect line of sight IR signals from remotes.
7. Connect RS-232 from your control system or computer.
a. TxD from the Controller connects into RxD of the extender
b. RxD from the Controller connects into TxD of the extender
c. Ground from the Controller connects into Ground of the extender
8. BEFORE connecting power supply to power outlet, screw-in the power supply to the Tx or Rx unit.
AFTER all connections are made, plug-in power supply to power outlet
9. Power on source and display
