Keyscan Inc. – Technical Guide (PC109x - 04.15)
Installation Notes on Proximity Readers
Do not run reader cables in same conduit with AC power or signal cables. Keep reader cables at least 12 inches
or 30 centimetres from AC, computer data, telephone data, or electric lock device cables. Do not install
readers within 3.5 feet or 1.1 metres of computer CRTs. Do not install readers where broad spectrum EMI
noise may be present. Motors, pumps, generators, and AC switching relays can create EMI noise. Readers
mounted on a metal surface can have reduced read ranges. See HID manual for operational details and
recommendations. The following diagrams illustrate HID readers with dual LEDs. On models 5365, 5395, and