Intel DG31PR Product Guide - Page 47

Connecting to the Serial Port Header, Connecting to the Alternate Front Panel Power LED Header

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Installing and Replacing Desktop Board Components Connecting to the Serial Port Header See Figure 21, D on page 45 for the location of the serial port header. Table 7 shows the pin assignments for the serial port header. Table 7. Serial Port Header Signal Names Pin Signal Name 1 DCD 3 TXD# Pin Signal Name 2 RXD# 4 DTR 5 Ground 6 DSR 7 RTS 9 RI 8 CTS 10 No Connection Connecting to the Alternate Front Panel Power LED Header Figure 21, E on page 45 shows the location of the alternate front panel power LED header. Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel header. If your chassis has a three-pin power LED cable, connect it to this header. Table 8 shows the pin assignments for the alternate front panel power LED header. Table 8. Alternate Front Panel Power LED Header Pin Description 1 Front panel green LED 2 No pin 3 Front panel yellow LED In/Out Out Out 47

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Installing and Replacing Desktop Board Components
47
Connecting to the Serial Port Header
See Figure 21, D on page 45 for the location of the serial port header.
Table 7 shows
the pin assignments for the serial port header.
Table 7. Serial Port Header Signal Names
Pin
Signal Name
Pin
Signal Name
1
DCD
2
RXD#
3
TXD#
4
DTR
5
Ground
6
DSR
7
RTS
8
CTS
9
RI
10
No Connection
Connecting to the Alternate Front Panel Power LED
Header
Figure 21, E on page 45 shows the location of the alternate front panel power LED
header.
Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front
panel header.
If your chassis has a three-pin power LED cable, connect it to this
header.
Table 8 shows the pin assignments for the alternate front panel power LED header.
Table 8. Alternate Front Panel Power LED Header
Pin
Description
In/Out
1
Front panel green LED
Out
2
No pin
3
Front panel yellow LED
Out