Installing and Replacing Desktop Board Components 
45 
Connecting to the Serial Port Header 
See Figure 22, D for the location of the green serial port header.  Table 8 shows the 
pin assignments for the header. 
Table 8.  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 22, E on page 42 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 9 shows the pin assignments for the alternate front panel header. 
Table 9.  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