English Product Guide

Installing and Replacing Desktop Board Components

Serial Port Header

See Figure 20, C for the location of the serial port header. Table 9 shows the pin

assignments for the header.

Table 9. 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

Alternate Front Panel Power LED Header

Figure 20, D 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

(Figure 20, E). If your chassis has a three-pin front panel

power LED

cable, connect it

to this header. Table 10 shows the pin assignments for the alternate front panel

power LED

header.

Table 10. Alternate Front Panel Power LED Header Signal Names

Pin Description In/Out

1 Front panel main color LED Out

2 No pin

3 Front panel alternate LED Out

Front Panel Header

See Figure 20, E for the location of the multi-colored front panel header. Table 11

shows the pin assignments for the front panel header.

Table 11. Front Panel Header Signal Names

Pin Description In/Out

Hard Drive Activity LED Power LED

1 Hard disk LED pull-up to +5 V

Out 2 Front panel green LED Out

3 Hard disk active LED Out 4 Front panel yellow LED Out

Reset Switch On/Off Switch

5 Ground 6 Power switch In

7 Reset switch In 8 Ground

Power Not Connected

9 Power Out 10 No pin