C-4
Connectors
USB Port
Table C-1 lists the connector pinouts for the USB port.
Table C-1. USB Port Connector Pinouts
USB 1
Pin
Signal
USB 2
Pin
Signal
1
+5 VDC
1
+5 VDC
2
USB_P1_N
2
USB_P0_N
3
USB_P1_P
3
USB_P0_P
4
GND
4
GND
Serial Ports COM1 and COM2
Table C-2 lists the connector pinouts for serial ports COM1 and COM2.
Table C-2. Serial Ports COM1 and COM2 Connector Pinouts
Pin
Signal
Description
1
DCD
Data carrier detected
2
RXD_L
Receive data
3
TXD_L
Transmit data
4
DTR
Data terminal ready
5
GND
Ground
6
DSR
Data set ready
7
RTS
Return to send
8
CTS
Clear to send
9
RIA
Ring indication active
Keyboard and Mouse
Table C-3 lists the connector pinouts for the keyboard and mouse. The keyboard and
mouse connectors are functionally equivalent.
Table C-3. Keyboard and Mouse Connector Pinouts
Pin
Keyboard signal
Pin
Mouse signal
1
KEYDAT
1
MSEDAT
2
NC
2
NC
3
GND
3
GND
4
FUSED_VCC (+5 V)
4
FUSED_VCC (+5 V)
5
KEYCLK
5
MSECLK
6
NC
6
NC
Содержание Express5800/120Rc-2
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Страница 124: ...4 48 Disassembly and Reassembly A Figure 4 56 Installing the PCI I O Board Figure 4 57 Securing an PCI I O Board ...
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