Wiring To An Internal Phone System - Chamberlain Elite EL25N Installation Manual

Wiring to an Internal Phone System

The units can be wired to any Analog Trunk in an internal home phone system.
NOTE: Installation where fiber optic phone lines are present may require additional modifications from your
telephone provider. Contact your provider for more information.
Telco Entrance Box
Demarcation Point
Ring
Tip
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.
IMPORTANT: You must program the unit
ID's for each unit wired in the series. See
Keypad Programming Manual.
Ring
Tip
Telco Entrance Box
Demarcation Point
Single Unit
Analog
Trunk
Internal
Phone System
T
R
Multiple Units (Up to 7)
To next unit (Unit ID 5 then
4 etc.) (Unit ID 1 is farthest away
T
R
Analog
Trunk
Internal
Phone System
Page 13
RES
Tip
Ring
J6
TELCO
Ring
Use 18-24 AWG
Tip
J8
2 twisted pair
from Telco Box)
Ring
RES
Tip
J6
TELCO
Ring
Tip
J8
Unit ID 6
Output Board
Use 18-24 AWG
(See page 6)
2 twisted pair
Ring
RES
Tip
J6
Tip Ring TELCO
Ring Tip
J8
Unit ID 7
Output Board
(See page 6)
NO
LED 4
J5 NC
C
RELAY 4
NO
NC
J4
LED 3
C
RELAY 3
NO
J3 NC
C
LED 2
NO
RELAY 2
NC
J1
C
LED 1
RELAY 1
NO
LED 4
J5 NC
C
RELAY 4
NO
NC
J4
LED 3
C
RELAY 3
NO
J3 NC
C
LED 2
NO
RELAY 2
NC
J1
C
LED 1
RELAY 1
NO
LED 4
J5 NC
C
RELAY 4
NO
NC
J4
LED 3
C
RELAY 3
NO
J3
NC
C
LED 2
NO
RELAY 2
NC
J1
C
LED 1
RELAY 1