3 Installation
Installing the hfMux-X is an easy task for experienced electrical personnel. Some important
notes should be considered as listed at the end of the installation instructions.
Step 1:
Place the multiplexer in the desired installation location and attach it there if necessary. The
device does not have a preferential mounting orientation.
Step 2:
Both the reader connection and the antenna connections are connected via BNC
connectors. No special tools are necessary for this step.
Step 3:
Connect the control lines between reader (or any other device that controls the multiplexer)
and the multiplexer. The device has optically isolated 24 V inputs which are used by many
industrial devices, e.g. PLCs. Each input needs a 24 V line (e.g. hfMux-4: Inputs IN1+ and
IN2+) as well as a ground line (IN1- and IN2- for hfMux-4) for the differential signal. If your
devices doesn't have single GND lines, you can connect all of them to the ground of the
controlling device.
If you use a metraTec RFID Reader to control the multiplexer, just connect the multiplexer
control cable you should have received with the multiplexer.
Step 4:
Connect the multiplexer with a 24 V power source. This can come directly from the reader if
it supports this (Pins 24V and GND).
Technical Documentation metraTec HF Multiplexer Page 6 of 13
