Title: Hardware Installation Guide.pdf
LNL-1100 series 2 upstream controller communication wiring: 2-wire (port 1)RS-485 2-WIRE COMMUNICATIONS2 WTR +TR -SGT+ T- SGEarth GroundWire with 24 AWG stranded twisted pair with shield42.1.4Relay OutputsTwo form-C contact relays are provided for controlling door strikes or other devices. Load switching can cause abnormal contact wear and premature contact failure. Switching of inductive loads (strike) also causes EMI (electromagnetic interference) which may interfere with normal operation of other equipment. To minimize premature contact failure and to increase system reliability, contact protection circuit must be used. The following two circuits are recommended. Locate the protection circuit as close to the load as possible (within 12 inches [30cm]), as the effectiveness of the circuit will decrease if it is located further away.260 — revision 6Hardware Installation GuideUse sufficiently large gauge of wires for the load current as to avoid voltage loss.12 VDCDC STRIKE