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AT8902M
Base Interface Uplink
The Hub Board supports four base interface uplinks to the front panel. The switch is connected
to the RJ45 connectors with integrated status LEDs on the front panel via a 10/100/1000BASE-
T quad PHY and two 10/100/1000BASE-T dual magnetics. GbE channels 0/1 to 0/4 of the
switch map to uplink channels 1 to 4.
Table 3-7:
Base Uplink (J39/J38) Pin Assignment
Signal
Pin
DB+
1
DB-
2
DA+
3
DD+
4
DD-
5
DA-
6
DC+
7
Yellow
DC-
8
Table 3-8:
Base Uplink (J39/J38) LEDs Signification
Speed LED (yellow)
OFF
BLINK
ON
Status LED (green)
OFF
ON
BLINK
Green
10BASE-T
100BASE-TX
1000BASE-T
Link Down
Link Up and no activity
Link Up and activity
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Hardware Description
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AT8902M User Guide
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