F&F MB-LI-4 Hi Manual page 3

Mounting
The use of anti-interference and surge filters (such as
OP-230) is recommended.
It is recommended to use shielded twisted-pair cables to
connect the module to another device.
When using shielded cables, ground the screens only on
one side and as close to the device as possible.
Do not route signal cables in parallel in close proximity
to high and medium voltage lines.
Do not install the module in the immediate vicinity of hi-
gh-power electric receivers, electromagnetic measuring
instruments, phase power control devices and other de-
vices that may cause interference.
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