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TWISTED PAIR WIRING TABLES
from a Punch Down Block to a 10Base-T Device (Continued)
From Punch Down
Block
Port 8/20
B29 Black/Gray
B30 Gray/Black
B31 Yellow/Blue
B32 Blue/Yellow
Port 7/19
B25 Black/Green
B26 Green/Black
B27 Black/Brown
B28 Brown/Black
Port 6/18
B21 Black/Blue
B22 Blue/Black
B23 Black/Orange
B24 Orange/Black
Port 5/17
B17 Red/Brown
B18 Brown/Red
B19 Red/Gray
B20 Gray/Red
Page A-6
Table A-2. Twisted Pair Wiring
To RJ-45
Wallplate
Pin
RX+
1 TX+
RX-
2 TX-
TX+
3 RX+
TX-
6RX-
Pin
RX+
1 TX+
RX-
2 TX-
TX+
3 RX+
TX-
6 RX-
Pin
RX+
1 TX+
RX-
2 TX-
TX+
3 RX+
TX-
6 RX-
Pin
RX+
1 TX+
RX-
2 TX-
TX+
3 RX+
TX-
6 RX-
Into
Into
Office
10BASE-T
Drop
Device
Pin
Pin
1 TX+
1 TX+
2 TX-
2 TX-
3 RX+
3 RX+
6 RX-
6 RX-
Pin
Pin
1 TX+
1 TX+
2 TX-
2 TX-
3 RX+
3 RX+
6 RX-
6 RX-
Pin
Pin
1 TX+
1 TX+
2 TX-
2 TX-
3 RX+
3 RX+
6 RX-
6 RX-
Pin
Pin
1 TX+
1 TX+
2 TX-
2 TX-
3 RX+
3 RX+
6 RX-
6 RX-
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