Title: Hardware Installation Guide.pdf
When using the LPMR-1824-MC reader, it should be mounted on a metal surface that is larger than the 8 x 8 inch reader housing. Lenel recommends a metal surface 12 square inches or larger.LPMR-1824 and LPMR-1824 MC readers have both Wiegand and RS-232 interfaces.101.9LenelProx LPLR-911