TYAN TOMCAT N3400B Manual page 13

J19: Front Panel Header
The Front Panel Header is used to connect some control or signal wires from
motherboard to chassis, such as HDD LED, power LED, power button, and
reset button.
HDDLED+
HDDLED-
Reset Switch
Reset Switch
NMI
NMI
5V
SMBus Data
SMBus Clock
J20/J21: Front Panel IEEE1394 Headers
2 10
1 9
J15: IPMB Pin Header
1
J13: SMDC Connector
The SMDC connector allows you to connect with Tyan Server Management
Daughter Card (SMDC). The S2925 supports Tyan SMDC M3291. See
Appendix for more information on SMDC.
¾ 2
1¾
¾ 4
3¾
¾ 6
5¾
¾ 8
7¾
¾ 10
9¾
¾ 12
11¾
¾ 14
13¾
SB
¾ 16
15¾
¾ 18
17¾
Signal
XTPA+
GND
XTPB+
POWR
_
Use these headers to connect to the external
devices of IEEE 1394.
J20: 1394-1, J21: 1394-2
Use this header to connect to the IPMB device.
Pin 1
IPMB
DATA
PWR LED+
PWR LED-
PWR Switch
Power Switch
WLED+
WLED-
key
GND
NC
Pin Pin
1 2
3 4
5 6
7 8
9 10
Pin 2 Pin 3
GND IPMB
CLK
13
Signal
XTPA-
GND
XTPB-
POWR
GND
Pin 4
NC