INSTEON SwitchLinc Dimmer 100-277VAC (dual band) (2478D) Manual User Manual
Page 8
 
Page 8 of 19 2478D - Rev: 1/21/2014 7:32 AM
13) Connect bare Ground wire from SwitchLinc to bare Ground wire or Ground screw in the wall box 
14) Connect White Neutral wire from SwitchLinc to Neutral wire(s) in wall box (usually White)
15) Cap Red wire from the SwitchLinc 
16) Connect the Black wire from SwitchLinc to same color Traveler from box 1 that you connected to 100 
- 277VAC Line along with the same color Traveler wires leading to box 3
17) Cap the last unused Traveler wire(s)
 
 
 
 
 
 
 
 
In Box 3 (Load box) 
18) Connect bare Ground wire from 
SwitchLinc to bare Ground wire or 
Ground screw in wall box 
19) Connect White Neutral wire from
SwitchLinc to Neutral wire(s) in wall 
box (usually White) 
20) Connect Red wire from SwitchLinc to
Load wire (usually Black)
21) Connect Black wire from SwitchLinc to
the 100 - 277VAC Line Traveler from 
box 2 (Line Traveled from box 1 
through 2 into 3, usually Black) 
22) Cap unused Traveler wire 
23) With the LED bar on the left, gently 
place both SwitchLincs into the junction 
boxes and screw in place 
24) Turn breaker(s) On
SwitchLincs' LED bar and 
connected light will turn on 
Only SwitchLinc in box 3 will operate the Load until you synchronize Scenes on all 3 
SwitchLincs in next step 
25) Add each SwitchLinc to a Scene as a Controller and Responder of each other (see
26) Verify SwitchLincs are working by turning the light on and off from all three SwitchLincs 
27) Reinstall wallplates 
1
If Neutral is not available in this box; use other unused Traveler from box 1 to carry Neutral to box 2. Label and mark any differently colored wire being connected to Neutral
with a piece of white tape to flag it as Neutral.