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SwitchMaster premium highly-relieable slow-action switch machines are the finest quality.

Wiring Schematics and Instruction Sheets

Wiring schematics and instructions sheets are provided with each SwitchMaster switch machine and accessory. They are posted here for your convienance.

These and ALL materials posted and printed ARE COPYRIGHT Builders In Scale / SwitchMaster © 2003. They may be copied for NON-COMMERCIAL USE only.

Part #1102 PL-2 Panel Lighting LEDs

SwitchMaster switch machine isometric photo of installation.

Part #1102 PL-2 Panel Lighting LEDs

Red and Green LEDs (2 pair) panel indicators, with resistors.


This kit includes two (2) red LEDs, two (2) green LEDs and two (2) 470 ohm resistors (yellow, violet, brown, gold). These LEDs run off the power supplying your SwitchMaster switch machine (this power is constant). You can use this kit as panel indicator showing the status of both legs of a turnout.

Use the following schematic to wire the LEDs so they switch from red (siding) to green (mainline):

SwitchMaster Accessory Wiring.

Figure A   LED Installation

For a very clean, professional installation use with SwitchMaster:

  • Mounting Rings (#1105 / MR-6).
  • Control with our SwitchMaster Toggle Switches (#1106 / TG-1)
  • Push Button Switch (#1110 / PB-1)


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