Support Engineering Group : Standard Wire Color Code This page last changed on Sep 24, 2009 by kgomes. ## Suggested Standard Wire Color Code Mark Chaffey / Ed Mellinger (Tiburon)
Color | Designation
--- | ---
Black | Power Grounds
Brown | Signal Grounds
Red | Logic Power
Orange | +12Vdc, +15Vdc
Yellow | +48Vdc
Green | Chassis / Frame / Seawater Ground; RS-485 Common
Blue | RS - 485A
Violet | RS - 485B
Grey | -12Vdc, -15Vdc
White | +240Vdc, +375Vdc
Chad Kecy / Paul McGill
Color | Designation
--- | ---
Black | Ground
Brown | Analog Ground
Red | +24Vdc
Orange | +12Vdc
Yellow | +5Vdc
Green | Comm Ground
Blue | RS-485A / USB+
Violet | RxD
Grey | RS-485B / USB-
White | TxD
Red/Yellow Stripe | +375Vdc
Red/Green Stripe | +36Vdc
David French
Color | Designation
--- | ---
Black | Com, PWR Ground
Brown |
Red | +24Vdc
Orange | +12Vdc
Yellow | Video
Green | RX-232
Blue | TX-232
Violet |
Grey |
White |
*Based on existing ROV wiring Scott Jensen
Color | Designation
--- | ---
Black | Power Grounds
Brown | Signal Grounds
Red | Logic Power
Orange | +12Vdc, +15Vdc
Yellow | +48Vdc
Green | Chassis / Frame / Seawater Ground; RS-485 Common
Blue | RS - 485A
Violet | RS - 485B
Grey | -12Vdc, -15Vdc
White | +240Vdc, +375Vdc
White/Black Stripe | MISC 24-22AWG wire / Misc Signal
White/Brown Stripe | MISC 24-22AWG wire / Misc Signal
White/Red Stripe | MISC 24-22AWG wire / Misc Signal
White/Orange Stripe | MISC 24-22AWG wire / Misc Signal
White/Yellow Stripe | MISC 24-22AWG wire / Misc Signal
White/Green Stripe | MISC 24-22AWG wire / Misc Signal
White/Blue Stripe | MISC 24-22AWG wire / Misc Signal
White/Violet Stripe | MISC 24-22AWG wire / Misc Signal
White/Grey Stripe | MISC 24-22AWG wire / Misc Signal
Denis Klimov
Color | Designation
--- | ---
Black |
Brown |
Red | +5Vdc
Orange |
Yellow | +12Vdc
Green |
Blue | -12Vdc
Violet |
Grey |
White |
Thom Maughan
Color | Designation
--- | ---
Black |
Brown |
Red |
Orange |
Yellow |
Green | +12V, +24V
Blue |
Violet |
Grey |
White | Ground
- *Based on Seabird oceanagraphic cables Craig Okuda
  Color | Designation
  --- | ---
  Black | 1
  Brown | 2
  Red | 3
  Orange | 4
  Yellow | 5
  Green | 6
  Blue | 7
  Violet | 8
  Grey | 9
  White | 10
  White/Black Stripe | 11
  White/Brown Stripe | 12
  White/Red Stripe | 13
  White/Orange Stripe | 14
  White/Yellow Stripe | 15
  White/Green Stripe | 16
  White/Blue Stripe | 17
  White/Violet Stripe | 18
  White/Grey Stripe | 19
- *Based on Mil-Spec-681 Thomas Hoover Colors for chassis and Interconnecting wire system by function
  Color | Alternate Color | Designation
  --- | --- | ---
  Black | White/Black | Transistor Bases
  Brown | White/Brown | Heaters or filaments
  Red | White/Red | Power Supply B+
  Orange | White/Orange | Screen Grids Clock
  Yellow | White/Yellow | Transistor Emitters
  Green | Green | Ground, Grounded elements
  Blue | White/Blue | Transistor Collectors
  Violet | White/Violet | Power Supply, Minus
  Colors for Interconnecting by Voltage
  Color | Designation
  --- | ---
  Red | +151V to +500V
  White/Red | +61V to +150V
  White/Brown/Red | +26V to +60V
  White/Red/Orange | +7V to +25V
  Violet | -26V to -60V
  White/Violet | -11V to -25V
  White/Violet/Yellow | -2V to -10V
  Green | Ground
  Color Coding for AC Wiring
  Service | Phase A | Phase B | Phase C | Neutral | Ground
  --- | --- | --- | --- | --- | ---
  115V 60Hz 1 F | Black | — | — | White | Green
  208V 60Hz 3 F "Y" | Black | Red | Orange or Blue | White | Green
  230V 60Hz 3 F Delta | Black | Red | Orange or Blue | — | Green
  115V 400Hz 3 F Delta | Black | Red | Orange or Blue | — | Green
  208V 400Hz 3 F "Y" | Black | Red | Orange or Blue | White | Green
  Commercial Coding for AC Wiring
  Service | US | Europe | UK
  --- | --- | --- | ---
  115V/240V 60Hz | Black | Brown | Brown
  Common | White | Blue | Blue
  Ground | Green | Green/Yellow | Green/Yellow

Document generated by Confluence on Feb 03, 2026 16:22