LiftMaster EL2000 EL25-KEYPAD PROGRAMMING Manual - Page 21
Programming Multiple Units Overview, Verify Unit Number: 111 - telephone entry system
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Programming Multiple Units Overview Programming Multiple Units Overview Programming Multiple Units Overview Up to seven (7) units can be installed on a single telephone line. Each unit must have a "Unique Unit ID" number and the "Number of Units in Chain" assigned to it. Set the Unit ID Number and Number of Units in Chain: 2 The unit ID identifies each unit within a chain. Adding or removing will require the unit ID's to be re-entered. Factory Setting: Unit ID 1 and Number of Units in Chain 1. 1 Press Then 2 Unit ID Number (1-7), Then 3 Total Number of Units in Chain (1-7), Then Important: This must be performed for EACH unit in the Chain Example: Unit ID "1" AUG 10, 2005 WELCOME Unique Unit ID Sequencial Order Unit ID "2" AUG 10, 2005 WELCOME Unit ID "3" AUG 10, 2005 WELCOME Unit ID "7" AUG 10, 2005 WELCOME Telco Entrance Box Demarcation Point Residence Number of Units in Chain "7" Important: You must program each unit ID using the main keypad first before attempting remote access. EACH unit in the Chain must have the same "Rings Before Answer" 16 . Factory Setting - 5 Rings EACH unit in the Chain must have the same "Alternate Prefix" 115 . Factory Setting - Normal (use to enter programming) Be sure to set the rings before answer value 16 is greater than maximum rings before aborting attempt 14 . Verify Unit Number: 111 This allows you to verify a unit's number within a chain. When you perform this step, the unit will respond with the number corresponding to its unit ID number. The message two (2), for example, means the unit is number 2 in the chain. Then If you make an error during an entry, press the asterisk key (*) to begin again. Page 20