12
Wiring Central Offi ce Lines (CO)
Depending on who may have installed the CO “Terminal Block,” and your incoming CO lines,
there may or may not be modular jacks to connect the 2 conductor (single pair) line cords to the
CO terminal block.
If not, you may want to connect the modular jacks and RJ-11’s (not included with system) as
shown in the diagram.
If you are familiar with the wiring of telephone equipment, you may choose to wire directly from
the CO ports of the system to the terminal block.
Y
G
B
R
Y
G
B
R
Y
G
B
R
Y
G
B
R
T
R
C01
T
R
C02
T
R
C03
T
R
C04
CENTRAL OFFICE (CO)
TIP & RING
CO TERMINATOR BLOCK
(CO)
2-CONDUCTOR LINE
CORDS
Y
G
B
R
Y
G
B
R
( EXT)
4-CONDUCTOR LINE CORDS FOR
KEY TELEPHONES, OTHERWISE,
USE 2-CONDUCTOR CORDS
Installing Your Phone System Unit
Chapter
2
- Installation Guide
