Installing and Replacing Desktop Board Components
Connecting to the Serial Port Header
See Figure 23, C for the location of the serial port header. Table 6 shows the pin assignments for the header.
Table 6. Serial Port Header Signal Names
Pin | Signal Name |
|
|
1 | DCD |
|
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3 | TXD# |
|
|
5 | Ground |
7RTS
9RI
Pin | Signal Name |
|
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2 | RXD# |
|
|
4 | DTR |
|
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6 | DSR |
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8 | CTS |
|
|
10 | No Connection |
|
|
Connecting to the Chassis Intrusion Header
Figure 23, D on page 45 shows the location of the chassis intrusion header. This header can be connected to a mechanical switch on the chassis to detect if the chassis cover is removed.
Table 8 shows the pin assignments for the chassis intrusion header.
Table 7. Chassis Intrusion Header
Pin Description
1Intruder
2Ground
Connecting to the Alternate Front Panel Power LED Header
Figure 23, E 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 header.
Table 8. Alternate Front Panel Power LED Header
Pin | Description | In/Out |
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|
|
1 | Front panel green LED | Out |
|
|
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2 | No pin |
|
|
|
|
3 | Front panel yellow LED | Out |
|
|
|
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