Title: Hardware Installation Guide.pdf
The PFL and EXTMP inputs are simple N/C (normally closed) contact closure monitors.Wire the PFL and EXTMP inputs using twisted pair cable, 30 ohms maximum (No EOL resistors are required).Connect the power fail monitoring device to J27 pins 1 & 3 and the External Tamper (cabinet tamper) pins 4 & 6. If not used, a jumper must be installed across pins 1 & 3 and 4 & 6.Unsupervised Alarm Input Wiring (PFL and EXTMP contacts)316 — revision 6Hardware Installation GuideNote:Input Status LEDs will be off when the tamper device is in the closed position or the jumper is installed.59.2Upstream CommunicationThe OCM uses Port 1 to communicate to the Intelligent System Controller.