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Appendix B: Twisted Pair Wiring Tables
Table B-2 Punchdown Block to a 10BASE-T Device (Continued)
From Punchdown Block
Port 3
B9
White/Gray
B10
Gray/White
B11
Red/Blue
B12
Blue/Red
Port 2
B5
White/Green
B6
Green/White
B7
White/Brown
B8
Brown/White
Port 1
B1
White/Blue
B2
Blue/White
B3
White/Orange
B4
Orange/White
B-8
To RJ45
Wallplate
Pin
RX+
3
RX+
RX-
6
RX-
RX-
11
TX+
TX-
2
TX-
Pin
RX+
3
RX+
RX-
6
RX-
TX+
1
TX+
TX-
2
TX-
Pin
RX+
3
RX+
RX-
6
RX-
TX+
1
TX+
TX-
2
TX-
To Office
To 10BASE-T
Drop
Device
Pin
Pin
3
RX+
3
6
RX-
6
1
TX+
1
2
TX-
2
Pin
Pin
3
RX+
3
6
RX-
6
1
TX+
1
2
TX-
2
Pin
Pin
3
RX+
3
6
RX-
6
1
TX+
1
2
TX-
2
EMC39-12 User's Guide
RX+
RX-
TX+
TX-
RX+
RX-
TX+
TX-
RX+
RX-
TX+
TX-
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