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III. INSTALLATION
5. External Connectors
IMPORTANT: Ribbon cables should always be connected with the red
stripe on the Pin 1 side of the connector. The four corners of the con-
nectors are labeled on the motherboard. Pin 1 is the side closest to the
power connector on hard drives and floppy drives. IDE ribbon cable
must be less than 18in. (46cm), with the second drive connector no more
than 6in. (15cm) from the first connector.
1. Keyboard Connector (5-pin female)
This connection is for a standard IBM-compatible keyboard. May also
be known as a 101 enhanced keyboard.
2. PS/2 Mouse Connector (6-pin block)
If you are using a PS/2 mouse, you must purchase an optional PS/2
mouse set which connects to the 6 pin block and mounts to an open
slot on your computer's case. You must also set "PS/2 Mouse Selec-
tion" on page 11 to enable the PS/2 Mouse.
Keyboard Connector (5-pin female)
Connector Plug from Keyboard
1 3 4
2
1: GND
2: DATA
3: NC
5
8
4: VCC
1 3 4
2
5: CLK
8: NC
5
8
PS/2 Mouse Module Connector
P/I-P55TP4N User's Manual
19
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