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54 VMIVME-7805/VME-7805RC Hardware Reference Manual
A.2 Serial Connector Pinout (J17)
Each standard RS232 serial port connector is a Microminiature DB9 male as
shown in Figure A-2. Adapters to connect standard DB9 serial peripherals to the
board are available. Contact Sales for ordering information.
Figure A-2 Serial Connector Pinouts
A.3 USB Connector (J12)
The USB port uses an industry standard four-position shielded connector.
Figure A-3 shows the pinout of the USB connector.
Figure A-3 USB Connector Pinout
5
9
6
1
COM 1 and COM 2 Serial Port Connectors
DB9 Pin DIR
RS232
Signal
Function
1
In
DCD
Data Carrier Detect
2
In
RX
Receive Data
3
Out
TX
Transmit Data
4
Out
DTR
Data Terminal Ready
5
GND
Signal Ground
6
In
DSR
Data Set Ready
7
Out
RTS
Request to Send
8
In
CTS
Clear to Send
9
In
RI
Ring Indicator
Shield
Chassis Ground
USB Connector (J12)
Pin
Signal
Function
1
USBV
USB Power
2
USB-
USB Data -
3
USB+
USB Data +
4
USBG
USB Ground
1
4