2U12L6SW
24
25
English
#7, 8, 9 SMB Connector
(SMB_1)
(SMB_2)
(SMB_3)
1
+3VSB
SCL
SDA
Present#
GND
The SMB (SubMiniature
version B) connector
provides a communication
interface between the
backplane and the
motherboard.
#6 Debug Connector
(DEBUG1)
1
GND
RX
TX
+3V
The Debug Connector is used
for the firmware upgrade and
factory reset.