1.4 BY-PASS
SWITCH
INSTALLATION AND WIRING
•
The by-pass switch should be installed in a location where it is accessible by the homeowner.
•
The by-pass switch must be protected from the weather. It is not designed for direct
exposure to rain, snow or other elements. If you are installing the by-pass switch outside of
the home, use a NEMA rated rain resistant enclosure to mount the by-pass switch in.
•
Pay special attention when connecting the by-pass switch to the Central Office (C.O.)
demarcation device. The by-pass switch must be wired so that it is on the homeowner’s side
of the demarcation device and not the C.O. side.
•
Pay special attention to the type of wire used when connecting the phone line wires. Refer to
the wire size chart on page 9 for proper wire size. Use only twisted pair telephone wire that is
rated for outdoor use and direct burial. Using thin jacketed telephone wire that is designed
for indoor use will result in noise and hum on the homeowners telephone.
DOORKING
1875-010
GND
C.O.
1 2
PH IN
3 4
PH OUT
5 6
HOME
7 8
ENTRY
BY-PASS
Ground
C.O.
Demarcation
Home
Telephones
1. Mount the by-pass switch in a location that is easily accessible by the homeowner. If
installed outdoors, be sure to protect the by-pass switch from direct exposure to rain,
snow and other elements.
2. Locate the telephone company demarcation device.
IMPORTANT! Identify the wires
that connect to the homeowner’s telephones
. Disconnect these wires from the
demarcation device and connect them to terminals 7 and 8 on the by-pass switch.
3. Connect a twisted-pair telephone wire to terminals 1 and 2 on the by-pass switch.
Connect the other end of these wires to the telephone company demarcation device
where you removed the wires in step 2.
4. Place the by-pass switch in the “BY-PASS” position until the 1812 unit is installed. Test
the homeowner’s telephone. They should have dial tone while the switch is in the BY-
PASS position.
5. Be sure to ground the by-pass switch using #12 AWG wire.
Page 16
1812-065-M-3-07
