Chamberlain Elite EL25 Installation Manual page 11

Internal Phone System
The EL25 can be wired to any Analog Trunk Input in a internal home phone system.
Telco Entrance Box
Demarcation Point
Ring
Tip
Never run Data wires and
High Voltage wires in the
s a m e c o n d u i t . T h e h i g h
voltage wires may interfere
with the data wires, possibly
c a u s i n g t h e s y s t e m t o
malfunction.
Important: You must program the Unit
each
ID's for EL25 wired in the series.
"Multiple Unit Set-Up"
See
19.
Ring
Tip
Telco Entrance Box
Demarcation Point
Single EL25
Internal
Phone System
Analog
Trunk Input
Multiple EL25s (Up to 7)
to next EL25 (Unit ID 5 then 4 etc.
Unit ID 1 is farthest away from Telco Box)
page
Trunk Input
Internal
Phone System
Page 10
Resident
Telco
Tip
T
R
Ring
Use 18-24 AWG
2 twisted pair
Output Board
Use 18-24 AWG
(See page 2)
2 twisted pair
Tip
T
R
Ring
Output Board
Analog (See page 2)
10
NC
Com
NO
Ring
11
NC
8
Tip Com
NO
NC 12
Com
Ring
9
Tip
NO
13
NC
Com
Output Board
(See page 2)
NO
10
NC
Com
Resident
NO
Ring
11
NC
8
Tip Com
NO
NC 12
Telco
Com
Ring
9
Tip
NO
13
NC
Unit ID 6
Com
10
NC
Com
Resident
NO
Ring
NC 11
8
Tip Com
NO
NC 12
Telco
Com
Ring
9
Tip
NO
13
NC
Unit ID 7
Com