Allied Telesis AT-GS2002 Series, Installation Manual

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AT-GS2002 Series Installation Guide
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operating in the MDI-X configuration at 10 or 100 Mbps.
Table 10 lists the RJ-45 port pin signals for a twisted pair 10/100/
1000Base-T port in the MDI and MDI-X configurations at 1000 Mbps.
Table 9. MDI-X Pin Signals (10/100Base-TX)
Pin Signal
1 RX+
2 RX-
3 TX+
6 TX-
Table 10. MDI and MDI-X Pin Signals (1000Base-TX)
MDI Configuration MDI-X Configuration
Pinout Pair Pinout Pair
1 Pair 1 + 1 Pair 2 +
2 Pair 1 - 2 Pair 2 -
3 Pair 2 + 3 Pair 1 +
4 Pair 3 + 4 Pair 4 +
5 Pair 3 - 5 Pair 4 -
6 Pair 2 - 6 Pair 1 -
7 Pair 4 + 7 Pair 3 +
8 Pair 4 - 8 Pair 3 -