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S1686D-001-01 http://www.tyan.com
2.4 CMOS RTC
The CMOS RTC includes an internal battery and real time clock circuit
which provides the date and the time, and the CMOS Chipset Default
Register for the system. Normally, the life span of a RTC internal battery is
more than 10 years. This RTC chip cannot be field upgraded and can only
be changed at a Tyan repairing facility.
2.5 Installing Cables and Connectors
2.5.1 Speaker Connector Installation (J29)
Your S1686D board provides a 4-Pin header to connect the speaker. The
speaker is connected to pins 24-27 of J29. (Refer to Page 10 and Page 11
for detailed information.)
2.5.2 Hardware Reset Switch Connector Installation (J29)
The RESET switch on your case's display panel provides you with the
HARDWARE RESET function which is the same as power on/off. The
system will do a cold start after the RESET switch is pushed by the user.
The RESET switch is a 2 pin connector and should be installed on pins
22 and 23 on J29. (Refer to Page 10 and Page 11 for detailed information.)
2.5.3 IDE LED Connector Installation (J29)
Your S1686D board provides a 2-Pin header to connect the IDELED cable.
When connected, the IDELED light on the panel of the case flashes if a
IDE activity is detected. The cable is connected to pins 15 & 16 of J29.
(Refer to Page 10 and Page 11 for detailed information.)
2.5.4 Power LED Connector Installation (J29)
The S1686D board also provides a 3-Pin header to connect the Power LED
cable. When connected, the Power LED light on the panel of the case
indicates power on/off of the system. The cable is connected to pins 18-20
of J29. (Refer to Page 10 and Page 11 for detailed information.)
2.5.5 IR2 Connector Installation (J29)
The S1686D board provides a 3-Pin connector (Pins 8-10 of J29) for the
IR2 cable which connects to a Homing Device on the back of the case.
When activated, the Homing Device will send out IR signals to remote I/O
IR devices. (Refer to Page 10 and Page 11 for detailed information.)
