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Keypad Wiring
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 Posted: Friday Jun 23rd, 2017 02:58 am
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slychiu
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Joined: Saturday Apr 29th, 2006
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Important
Please do NOT lay the Keypad wires close to any Mains Cable, as this will cause interference in the form of a loud humming or buzzing. This noise is almost impossible to  remove except  by moving the keypad wires AWAY from the Mains cable. 50/60 Hz is in the voice frequency range and is difficult to filter out

It is also importrant to use CAT 5 cable preferably shielded



 Posted: Sunday Jun 25th, 2017 05:36 am
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Swiss-Toni
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10cm is the usaul distance that mains cables should be kept away from other cables that maybe interefered with esp data, CCTV & other COAX cables esp TV.



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