©2009 Overhead Door Corporation
Part Number 37027500123 02/26/2010 REV. 1
17
+ –
P
B
Infared Sensor
1
2
3
4
5
6
3b.
Wiring (If pre-wired)
• Route wire from wall to Safe-T-Beam
®
sensors
(Fig. 4-5b).
• Splice pre-wiring to shortened sensor wire,
match wire pairs
dash-to-dash
and
plain-to-
plain
.
– Trim sensor wire to approximately one foot
(12 inches) from sensor.
– Split and strip ends of sensor wires
and pre-wired wires
(Fig. 4-7).
– Splice wires together with (provided)
wire nuts.
• Route wire from ceiling to power head
(Fig. 4-5b).
• Securely fasten wires where they exit
wall and ceiling as you go.
– Use insulated staples.
– Staples should be snug only.
CAUTION
Staples which are too tight can cut or pinch wires.
Cut or pinched wires can cause the Safe-T-Beam
®
System to stop working. When using the insulated
staples, make sure you fasten them only as tightly
as needed to hold the wire snugly.
4.
Split and strip ends of sensor wires (Fig. 4-7).
NOTE: For rear cover locate Box 4.
5.
Attach Safe-T-Beam
®
wire to power head wire
terminal.
• Route Safe-T-Beam
®
wires through wire guide.
– Insert wire into terminal holes and lightly
press in the orange locking clips above each
terminal hole. (You can use a pencil or small
screwdriver to comfortably reach in and lightly
press down locking clips.) Insert white wires
to ‘even’ numbered terminal holes and striped
wires into ‘odd’ terminal holes
(Fig. 4-8).
1
2
3
4
Terminal
Holes
Locking
Clips
5
6
– Confirm wire lock by lightly tugging on the
wire. The wire should remain in the terminal
hole.
• Do not install the white (lamp) cover at this
time.
NOTE: Safe-T-Beam
®
alignment check must be
performed following connection to electrical
power (see page 18). DO NOT PLUG IN YET!
FIG. 4-5b Pre-Wired source and sensor wiring
method
or
6 5 4 3 2 1
6 5 4 3 2 1
Red
Green
Source
Sensor
Power
Head
Dashed Line = striped wire
Solid Line = white wire
Ceiling
Wall
Wall
FIG. 4-6 Wire routing
Wire
Wire
Sensor
Sensor
Invisible Light Beam
Protection Area
Insert Wire
Into Connector
Use this
wire routing
if NOT pre-wired
1/2"
2"
FIG. 4-7 Splitting and
stripping
FIG. 4-8 Insert wires
Insulated
Staple
Wire Nut
(Power Head With Rear Cover Removed)
