Owner's manual

Hardware Description
41 AT8404 User Guide
www.kontron.com
3.2.4 GbE Port
The SFP port is connected to the front board's GbE switch. The corresponding interface is identified as 0/22.
The SFPs uplink ports are according the Small Form-factor Pluggable (SFP) Transceiver MultiSource Agree-
ment (MSA), Sept. 14th, 2000. The fabric switch controls the SFPs via an I²C bus. The SFP connectors have the
following pin assignment:
Table 3-24: Fast Ethernet Management (RJ45) LEDs Signification
Speed LED (Yellow)
OFF 10BASE-T
ON 100BASE-T
Status LED (Green)
OFF Link down
ON Link up and no activity
BLINK Link up and activity
Table 3-25: SFP Connectors Pin Assignment
Signal Contact Contact Signal
GND 1 20 GND
TX_FAULT 2 19 TD-
TX_DIS 3 18 TD+
MODDEF2 4 17 GND
MODDEF1 5 16 3.3V TX
MODDEF0 6 15 3.3V RX
R_SEL 7 14 GND
LOS 8 13 RD+
GND 9 12 RD-
GND 10 11 GND
CAUTION
Do not look into the laser beam! The SFP modules are fitted with a class
1 or 1M laser. To avoid possible exposure to hazardous levels of invisi-
ble laser radiation, do not exceed maximum ratings.