Title: Hardware Installation Guide.pdf
Connect power common (ground) to the black wire in the reader's cable, and connect positive power to the red wire.Power Supply - CurrentDo not draw reader power from the host controller's internal power source, such as the reader input port, unless it meets all of the requirements above, and its current rating is sufficient for the peak power requirement of the LPMR-1824 (600 mA at 12 VDC, or 250 mA at 5 VDC).Use a DC millimeter in series with the reader power supply to measure the current capacity.If using an external power supply, Lenel recommends its PS12-1A DC Power Supply, which has excess power for 1 MR-1824 reader.Distance from MetalMount the MR-1824 reader on a non-metallic surface. Metal sheets, screens, plates, studs, posts, structural members, etc. should be about one foot away from the reader, in all directions.