Serial Db9 Db25 Pinouts
View the RS-232 Pinout and COM Port summary card and the Decimal to Hex to ASCII Converter Table.
Элементов: 10 1-16 of 225 results for db25 pinout Belkin DB9 Female/DB25 Male Modem Cable. by Belkin. DB9 m. serial port to DB25 f. port. Industrial Scientific.
Serial (RS232) null modem cable (DB9-DB25). Pinout and signals for building a serial (RS232) nullmodem cable
Tech Stuff - RS-232 Cables, Wiring and Pinouts. Brief tutorial and pinouts for RS-232, RS232 DB9 to DB25 Pinout. Use when connecting a DB9 e.g. a PC.
Use this cable between two DTE devices for instance two computers.
DB9 pin D-SUB female to PC1
DB25 pin D-SUB female to PC2
DB9
DB25
Receive Data
Transmit Data
Data Terminal Ready
6 8
Data Set Ready Carrier Detect
System Ground
6 1
Request to Send
Clear to Send
Note: DSR CD are jumpered to fool the programs to think that
they are online.
RS232 serial cables and adapters. Pinout and wiring layout for many situations. DB9 to DB25 conversion and null modem wiring diagrams.
Serial RS232 null modem cable DB9-DB25. Pinout and signals for building a serial RS232 nullmodem cable.
B B Electronics has many reference tools for your convenience. View or download the RS-232 pinout and COM Port Summary Card and the Decimal to Hex to ASCII Converter Table. Let us help you solve all of your communications problems.
Pinout and COM Port Summary Card
EIA-232-E RS-232
Function
EIA-530
PIN
DB-25
TO
DTE
DCE
Shield
1
Transmit Data TD
2
3
14
Receive Data RD
16
Request To Send RTS
4
7
19
Clear To Send CTS
5
8
13
DCE Ready DSR
6
22
Signal Ground SG
Received Line Signal Detector DCD
Received Line Signal Detector
A
B
10
DTE Ready DTR
20
23
Ring Indicator
9
N/A
-----
SIGNAL
STATE
THRESHOLD VOLTAGES
Signal with Respect to SG
Signal A with Respect to Signal B
RS-232
RS-422
RS-485
0, Asserted, ON, Space, Active
3 to 25 VDC
2 to 6 VDC Transmitter
0.2 to 7 VDC Receiver
1.5 to 6 VDC Transmitter
0.2 to 12 VDC Receiver
1, Disasserted, OFF, Mark, Inactive
-3 to -25 VDC
-2 to -6 VDC Transmitter
-0.2 to -7 VDC Receiver
-1.5 to -6 VDC Transmitter
NOTE: Some RS-422 and RS-485 equipment use and - descriptors.
The - corresponds to A and the corresponds to B.
Common AT Port Addresses and Interrupts
COM 1
3F8h
IRQ4
COM 2
2F8h
IRQ3
COM 3
3E8h
COM 4
2E8h
LPT1
378h
IRQ7
LPT2
278h
IRQ5
LPT3
3BCh
Floppy Disk
IRQ6
Real Time Clock
IRQ8
Re-directed to IRQ2
IRQ9
Math Co-processor
IRQ13
Hard Disk
IRQ14.
