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Ca r r i e r Board
carrier board. This power signal is from JP6. Set JP6 1-2 for
AT type power supply. Set JP6 2-3 for ATX type power
supply.
VBAT
Power input for RTC backup. This power signal is fed by
ETX carrier board
RSTIN#
Reset input. Reset button and Watchdog timer can generate
this signal.
PWRBTN# (PW_BN)
Power button input.
PS_ON (PSON)
A low on this signal enable ATX power supply output. A high
on this signal disable ATX power supply output.
EXTSMI#
External SMI signal input. Assert this signal for power
management event.
OVCR#/DACK2#
USB over current input. Tie all USB over current signal
together by open-drain circuit on this signal.
Default is OVCR# (Set JP17 1-2 ON)
Note: There are two USB over current detection methods.
Refer to schematics page 13. Use U20 or U21. For U20, the
support chip is VIA82C686B.
SPEAKER (SPKR)
E C B - 9 0 1 A
Quick Installation Guide - 45 -
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