Chamberlain LA500DC Installation Manual page 18

STEP 6 continued...
DUAL GATES ONLY
WIRED DUAL GATES
INSTALL A SECOND OPERATOR ARM
Install a second operator arm by following installation steps 1-2.
INSTALL THE EXTENSION CABLE AND JUNCTION
BOX
Before digging, contact local underground utility locating companies.
1. Trench across driveway to bury the extension cable. Use PVC
conduit to prevent damage to cables.
2. Open the junction box by removing screws (4) and set aside.
3. Select holes to be used for mounting and knock out using a
screwdriver and hammer. Drill two holes in the junction box
large enough for the watertight connectors.
4. Mount the junction box within 3 feet (0.9 m) of second
operator.
5. Route operator cable and extension cable through watertight
connector nut and watertight connector.
6. Insert the cables and watertight connectors into the holes in the
junction box.
5. Slide the connector nut onto the operator cable and extension
cable.
8. Connect the wires from extension cable and operator cable to
the terminal block connector as shown (like-colored wires must
face each other).
9. Put wires inside of junction box.
10. Secure operator and extension cables by tightening the
connector nut.
11. Reinstall cover.
INSTALLATION
Operator
Cable
Connector Nut
Watertight
Connector
Watertight Connector Nut
PVC Conduit
16
Terminal Block
Brown Brown
Green Green
White White
Yellow Yellow
Blue
Blue
Red
Red
Junction Box
Extension
Cable
Within 3' (0.9 m)