Remotec ZXT-120 V1.1 - Manual (Page 22)

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Q Can I use the USB port to configure ZXT‐120?
A No, the mini USB port only provides an alternative option for user
to power the ZXT‐120.
Q Do I need an electrician to install Z‐Wave products in my house?
A Installation can be simple. In some cases all you need to do is
mount the ZXT‐120 to a wall or wooden racks. You also can place
the ZXT‐120 on the desk and power it with dry cell batteries.
Q How to select my air‐conditioner IR code from ZXT‐120?
A You should refer to the code list and look into the brand and try
the code no. sequentially until you find the right code. You can
record down your device code under the table for future
reference after setting up the ZXT‐120 correctly.
Q ZXT‐120 is working on top and 4‐directions IR output, but there
is no response on the IR emitter socket, why?
A ZXT‐120 supports two IR power levels for the external IR emitter
to avoid saturation of the IR receiver. You can set the IR output
power level by the Parameter Table value (normal or high power
mode) or adjust the position of your external IR emitter.
Q Can I use 2 or more ZXT‐120 in my house? What is the max. units
if yes?
A Yes and it is very depend on the capability of gateway / controller.
For example, gateway can supports up to 8, 16 or 32 ZXT‐120 in a
network.
Q How to avoid the IR interference if I am using 2 identical air‐
conditioners in same location but want to control them
individually?
A User can disable the Surround IR Output function, connect the
external IR emitter and aim it at the specific AC unit. The
operating distance of external IR emitter is around 100cm (High
power mode) and 50cm (Low power mode) but it is also depends
on the sensitivity of the IR receiver.
External IR emitter cable