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     Turner, Maine ..... (207) 225-5115 ..... 1-800-244-3033

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Telecom Color Codes

T 568 B
1 2 3 4 5 6 7 8

White

 Orange White Blue White Green White Brown
       
Orange White Green White Blue White Brown White
Crossover
White Green

White

 Blue White Orange White Brown
       
Green White Orange White Blue White Brown White
Rollover
Brown White Green White Blue White Orange

White
       
White Brown White Blue White Green White Orange

T 568 A
1 2 3 4 5 6 7 8
White Green

White

 Blue White Orange White Brown
       
Green White Orange White Blue White Brown White
Crossover

White

 Orange White Blue White Green White Brown
       
Orange White Green White Blue White Brown White
Rollover
Brown White Orange White Blue

White

 Green White
       
White Brown White Blue White Orange White Green

 

RJ 11 / RJ 14
1 2 3 4

White

 Blue White Orange
   
Orange White Blue White
Line 2 Tip Line 1 Ring Line 1 Tip Line 2 Ring

Quad Cable Colors
Black Red Green Yellow

 

RJ 25
1 2 3 4 5 6
White

White

 Blue White Orange Green
     
Green Orange White Blue White White
    Pair 1    
  Pair 2  
Pair 3

 

RJ 45
1 2 3 4 5 6 7 8

White

 Orange White Blue White Green White Brown
       
Orange White Green White Blue White Brown White
Pin Color
Blue Orange Black Red Green

Yellow

 Brown White
10 Base T
White Blue

White

     Orange    
           
Blue White Orange     White    
                         T 1 pairs  maybe reversed for Xmit/Rec
Blue White   Orange

White

      
           
               
Token Ring
   

White

 Blue White Orange    
           
               
                                    ATM / FDDI pairs  maybe reversed for Xmit/Rec
White Blue        

White

 Orange
           
Blue White         Orange White

RJ 61
1 2 3 4 5 6 7 8
White White

White

 Blue White Orange Green Brown
       
Brown Green Orange White Blue White White White
      Pair 1      
    Pair 2    
  Pair 3  
Pair 4

 

25 Pair Cable & Block Codes
Trace Colors Primary Colors
White Blue
Red Orange
Black Green
Yellow Brown
Violet Slate

Trace Pair Terminal  Trace Primary Line Binder
Group Number Number Color   Color Polarity Pairs
White 1 1 White   Blue Tip 1-25
2 Blue   White Ring  
White 2 3 White   Orange Tip 26-50
4 Orange   White Ring  
White 3 5 White   Green Tip 51-75
6 Green   White Ring  
White 4 7 White   Brown Tip 76-100
8 Brown   White Ring  
White 5 9 White   Slate Tip 101-125
10 Slate   White Ring  
Red 6 11 Red   Blue Tip 126-150
12 Blue   Red Ring  
Red 7 13 Red   Orange Tip 151-175
14 Orange   Red Ring  
Red 8 15 Red   Green Tip 176-200
16 Green   Red Ring  
Red 9 17 Red   Brown Tip 201-225
18 Brown   Red Ring  
Red 10 19 Red   Slate Tip 226-250
20 Slate   Red Ring  
Black 11 21 Black   Blue Tip 251-275
22 Blue   Black Ring  
Black 12 23 Black   Orange Tip 276-300
24 Orange   Black Ring  
Black 13 25 Black   Green Tip 301-325
26 Green   Black Ring  
Black 14 27 Black   Brown Tip 326-350
28 Brown   Black Ring  
Black 15 29 Black   Slate Tip 351-375
30 Slate   Black Ring  
Yellow 16 31 Yellow   Blue Tip 376-400
32 Blue   Yellow Ring  
Yellow 17 33 Yellow   Orange Tip 401-425
34 Orange   Yellow Ring  
Yellow 18 35 Yellow   Green Tip 426-450
36 Green   Yellow Ring  
Yellow 19 37 Yellow   Brown Tip 451-475
38 Brown   Yellow Ring  
Yellow 20 39 Yellow   Slate Tip 476-500
40 Slate   Yellow Ring  
Violet 21 41 Violet   Blue Tip 501-525
42 Blue   Violet Ring  
Violet 22 43 Violet   Orange Tip 526-550
44 Orange   Violet Ring  
Violet 23 45 Violet   Green Tip 551-575
46 Green   Violet Ring  
Violet 24 47 Violet   Brown Tip 576-600
48 Brown   Violet Ring  
Violet 25 49 Violet   Slate Tip 601-625
50 Slate   Violet Ring  

 

DTMF TONES 1209Hz 1336Hz 1477Hz 1633Hz
697Hz 1 2 ABC 3 DEF A
770Hz    4 GHI 5 JKL 6 MNO B
852Hz     7 PRS 8 TUV 9 WXY C
941Hz *   0 OPER # D

 

Resistor Color Code  resistor calculator

Tolerance Bands

 Gold=5% Silver =10%
Black Brown Red Orange Yellow Green Blue Violet Gray White
0 1 2 3 4 5 6 7 8 9
x1 x10 x100 x1000 x10,000 x100,000 x1 M x10 M x100 M x1000 M

Example
1st Band   2nd Band   3rd Band   4th Band Resistance
Green   Blue   Brown   Gold Equals
5   6   x10   5% 560 ohms

COMMERCIAL  COMMUNICATIONS
     Turner, Maine ..... (207) 225-5115 ..... 1-800-244-3033