DB-25 Connector
The following figure and table give the pin locations and descriptions of
the DB-25 connector, which is on the optional 10-position modular jack to
DB-25 cable.
DB-25 Connector Pin Locations
DB-25 Pin Descriptions
DB-25 Pin 232 Signal
485 Signal
2
TXD
RTS+ (HSO+)
3
RXD
CTS+ (HSI+)
4
RTS
RTS– (HSO–)
5
CTS
TXD+
6
DSR*
CTS– (HSI–)
7
GND
RXD–
8
DCD*
GND
20
DTR*
RXD+
22
RI*
TXD–
Pins not listed in this table are No Connect.
* These signals are "No Connect" on the isolated 232 ports.
The following figure shows how to connect the cables when you install a
four-port PXI serial board.
Содержание PCI-8430
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Страница 5: ...Using Help Conventions Navigating Help Searching Help Printing Help File Topics...
Страница 17: ...How to Use this Help File To use this help file refer to the following flow chart and the appropriate topics...
Страница 21: ...Serial Hardware Overview PCI Kits PXI Kits USB Kits ENET Kits ExpressCard Kits PCMCIA Kits...
Страница 24: ...PCI 485I RS 485 two port isolated RS 485 four port isolated...
Страница 27: ...PXI 8423 RS 485 two port isolated RS 485 four port isolated...
Страница 63: ...Save Pending Changes To save your changes to this item click Save...
Страница 65: ...Restore Defaults To reset the fields to their default values at any time click the Defaults button...
Страница 98: ...0 LPVOID l_SerialInterface sizeof l_SerialInterface LPDWORD l_ByteCount NULL...
Страница 127: ...2 PORT LEDs USB Serial Hardware LEDs...
Страница 139: ...Connecting the Cables to a Four Port PXI Serial Board...
Страница 141: ...67 58 50 41 33 24 16 7 TXD 9 RI 9...
Страница 167: ......
Страница 169: ......
Страница 171: ......
Страница 181: ...How many serial ports can I have on my machine You can have up to 256 serial ports...
Страница 189: ...nslookup hostname If you still cannot communicate with your device contact National Instruments...
Страница 201: ...Glossary Prefixes Symbols A B C D E F G H I K L M P R S T U V...
Страница 203: ...Symbols degrees ohms percent...
Страница 204: ...A A amperes ANSI American National Standards Institute...
Страница 205: ...B b bits B bytes baud bits per second bps bits per second...
Страница 206: ...C C Celsius COM Computer Output Microform used in reference to a communication port CTS clear to send...
Страница 208: ...E EIA Electronic Industries Association EMI electromagnetic interference ENET Ethernet...
Страница 209: ...F FCC Federal Communications Commission FIFO First In First Out ft feet...
Страница 210: ...G G ground...
Страница 211: ...H HSI handshake input HSO handshake output Hz Hertz...
Страница 213: ...K Kbaud kilobits per second...
Страница 214: ...L LED light emitting diode...
Страница 215: ...M m meters MB megabyte...
Страница 216: ...P PC personal computer PCI Peripheral Components Interconnect...
Страница 218: ...S s seconds SCSI Small Computer Systems Interface...
Страница 220: ...U UART Universal Asynchronous Receiver Transmitter...
Страница 221: ...V V volts VDC volts direct current VXI VME eXtensions for Instrumentation...
Страница 222: ...Important Information Warranty Copyright Trademarks Patents Warning Regarding Use of NI Products Compliance...