Connecting the Control Panel
JF1 contains header pins for various front control panel connectors. See Figure
All JF1 wires have been bundled into single keyed ribbon cable to simplify their connection. The red wire in the ribbon cable plugs into pin 1 of JF1. Connect the other end of the cable to the Control Panel printed circuit board, located just behind the system status LEDs in the chassis.
See the Connector Defi nitions section in this chapter for details and pin descrip- tions of JF1.
Figure 5-2. Front Control Panel Header Pins (JF1)
20 | 19 |
Ground | NMI |
x (key) | x (key) |
Power LED | Vcc |
HDD LED | Vcc |
NIC1 | Vcc |
NIC2 | Vcc |
OH/Fan Fail LED | Vcc |
Power Fail LED | Vcc |
Ground | Reset Button |
Ground | Power Button |
2 | 1 |
5-5 I/O Ports
The I/O ports are color coded in conformance with the PC 99 specifi cation. See Figure