LiftMaster EL25 EL25 Installation Ver. 3.0 Manual - Page 11

Wiring 1 Unit to Telco Line Wiring 1 Unit to Telco Line The bypass board allows the unit to be disconnected without interrupting normal telephone operation. NOTE: Installation where fiber optic phone lines are present may require additional modifications from your telephone provider. Contact your provider for more information. • When the unit is in use, the bypass switch must be set to the operate position. • When the unit is disconnected, the bypass switch must be set to the bypass position. Home Phone Bypass Board (Mount in the House) OPERATE BYPASS Ring Tip Ring Tip 4 3 2 1 Ring Tip HOME SYSTEM TELCO IMPORTANT: The Bypass Board (located inside the property) allows access to the phone in case the unit fails. Never run Telco wires and High Voltage wires in the same conduit. The high voltage wires may interfere with the Telco wires, possibly causing the system to malfunction. Alarm System Position Telco Entrance Box Demarcation Point Tip Ring (Not Provided) NOTE: If the unit will be used in conjunction with an alarm system, you MUST connect the telephone line to the alarm system first. If the units are not connected in this order, they will not operate properly. Use 18-24 AWG 2 twisted pair DO NOT overload the removable terminal block connectors. One wire per hole. RES 3 Ring 4 Tip TELCO 1 Ring 2 Tip Output Board (See page 6) Page 9