LiftMaster EL1SS EL1SS Installation and Programming Manual - Page 7

INTRODUCTION INSTALLATION TESTING PROGRAMMING TYPICAL TELCO OVERVIEW WITH THE UNIT CONNECTING THE BYPASS BOARD The bypass board allows the EL1SS unit to be disconnected without interrupting normal telephone operation. If the unit is used in conjunction with an alarm system, you must connect the telephone line to the alarm system first or the unit will not operate properly. NOTES: • When a unit is in use, the bypass switch must be set to operate. • When a unit is disconnected, the bypass switch must be set to bypass. • If the unit will be connected with an alarm system, you must connect the telephone line to the alarm system first in the series from the Telco box. If the units are not connected in this order, they will not operate properly. Disconnect power at the fuse box BEFORE proceeding. The unit MUST be properly grounded and connected in accordance with national and local electrical codes. NOTE: The unit should be on a separate fused line of adequate capacity. • A static discharge can damage circuit boards • NEVER run telco wires and high voltage wires in the same conduit. The high voltage may interfere with the telco wires, possibly causing the system to malfunction. Bypass Board Telco Entrance Box Demarcation Point 12:00 AM Dec. 31 MENU REDIAL TALK OFF FLASH 1 2 3 &') ABC DEF 4 5 6 GHI JKL MON 7 8 9 PQRS TUV WXYZ 0 # OPER Alarm System Position (Not Provided) Telco PHONE LINE RING TIP RING TIP Phone lines with DSL service. In order for the EL1SS to function normally a DSL filter is required to separate the DSL (digital) signal from the telephone service (POTS). 1. Install the splitter between the demarcation box and the EL1SS. 2. Route the DSL/Phone wires from the demarcation box to the splitter's input terminal. 3. Run a copper, twisted pair from the splitter's phone output to the EL1SS. 4. Run the data wires from the splitter to the resident's computer network. 5. Run the residence phone wires from the EL1SS to the residence phone(s). 5