Notes for placing the PR-450UDM
Do not place the PR-450UDM on a metal plate
Do not place the PR-450UDM on a steel desk or computer with a metal housing. It will generate harmful
interference due to the effects of metal, which may block wireless networking with IC cards.
Leave enough space between the PR-450UDMs
When operating more than one PR-450UDM, be sure to place them apart from each other as shown in
the figures below. This is to avoid
radio frequency interference between the PR-450UDMs.
Parallel arrangement
Face-to-face arrangement
40cm
30cm
40cm
Back-to-back arrangement
Avoid effects of noise
The PR-450UDM may not be able to function normally or encounter difficulties in transmitting data in
the presence of noise.
You should take the following measures in the vicinity of noise source.
Noise source
Solutions
Switching power source, power cable, etc.
Move the PR-450UDM away from the noise source
or shield the noise source.
Inverter (air conditioner, refrigerator,
fluorescent light, etc.)
Move the PR-450UDM away from the noise source
until transmission is established.
Equipment operating in the same frequency
band (13.56MHz)
Another type of IC card reader/writer
Electrical equipment generating noise
・
Move the PR-450UDM away from the noise
source until transmission is established.
・
Use another USB port having a power source
different from the equipment generating the noise.
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