Wiring Multiple Units To Telco Line - Chamberlain Elite EL2000 Installation Manual

Wiring Multiple Units to Telco Line

Up to 7 units can share the same phone line. The bypass boards allow the units 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 units are in use, the bypass switches must be set to the operate position.
• When the units are disconnected, the bypass switches must be set to the bypass position.
Home Phone
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.
DO NOT overload the removable
terminal block connectors. One wire
per hole.
Bypass Board for Unit 1
OPERATE BYPASS
Ring Tip 4 3 2 1 Ring Tip
HOME SYSTEM TELCO
Ring
Ring
Tip Tip
IMPORTANT: The Bypass
Boards (located inside the
property) allow access to
the phone in case any of
the units fail.
Use 18-24 AWG
2 twisted pair
RES
3
4
TELCO
1
2
Unit ID 1
Output Board
(See page 6)
Page 10
Bypass Board for Unit 2 Last Bypass Board
OPERATE BYPASS BYPASS
Ring Tip 4 3 2 1 Ring Tip Ring
HOME SYSTEM TELCO TELCO
Tip
Ring
IMPORTANT: You must program the unit ID's
for each unit wired in the series. See Keypad
Programming Manual.
RES
Ring
1
Tip 2
TELCO
Ring
3
4
Tip
Unit ID 2
Output Board
(See page 6)
Telco Entrance Box
Tip
Demarcation Point
Tip
Ring
Ring
Tip
Ring
Tip