What are DB9 ports used for?
Table of Contents
- 1 What are DB9 ports used for?
- 2 What is the function of pin 3 in the 9 pin serial port?
- 3 Which pins of port 3 are used as serial port?
- 4 Which type of communication is carried out using DB9 connector and which communication protocol does it use?
- 5 How do I connect my DB9 to my laptop?
- 6 What is the full form of DB in DB9 connector?
- 7 What is DB9 serial cable?
What are DB9 ports used for?
DB9 connectors were commonly used for serial peripheral devices like keyboards, mice, joysticks, etc. Also they are used on DB9 cable assemblies for data connectivity. Today, the DB9 has mostly been replaced by more modern interfaces such as USB, PS/2, Firewire, and others.
What is the function of pin 3 in the 9 pin serial port?
An explanation of serial RS-232 mouse pinout
| Pin | Signal | Description |
|---|---|---|
| 3 | TD | Serial data from host to mouse (only for power) |
| 2 | RD | Serial data from mouse to host |
| 7 | RTS(Request to Send) | Positive voltage to mouse |
| 8 | CTS(Clear to Send) |
Which pins are used on standard 9-pin serial cable for transmit/receive and ground?
Serial connectors. Serial communication devices make use of 9 or 25 pin D-type connectors for their cabled connections. They are commonly designated as DB-9 or DB-25 with the number used to differentiate between the pin counts.
Which pins of port 3 are used as serial port?
Pins 10 to 17 − These pins are known as Port 3. This port serves some functions like interrupts, timer input, control signals, serial communication signals RxD and TxD, etc. Pins 18 & 19 − These pins are used for interfacing an external crystal to get the system clock.
Which type of communication is carried out using DB9 connector and which communication protocol does it use?
Most people simply called it a serial connection. At one time, it was the most used form of data transmission. You will probably recognize the standard 9 pin DB9 cable. Simply put, a RS232 connection transmits signals using a positive voltage for a binary 0 and a negative voltage for a binary 1.
Can DB9 be used for a monitor?
In summary, no, a serial port is not a video port and there is no way to use a monitor of any kind with it (even a 9-pin monitor, let alone 15-pin one). Since it does not have onboard video, you will need to install a video-card.
How do I connect my DB9 to my laptop?
Plug the serial DB-9 end of the console cable into the serial DB-9 port on your laptop. If your laptop has no serial DB-9 port, plug the serial DB-9 end of the console cable into the serial DB-9 end of a USB to serial DB-9 adapter and then into a USB port on your laptop.
What is the full form of DB in DB9 connector?
In DB9 it denotes 9 position shell and 9 contact terminals. The DB style connector is a common connector used in many computer, audio/video, and data applications.The connector gets its name from its trapezoidal shape that resembles the letter “D”. In the name, DB stands for D-Sub-miniature or D-sub but its actual name is DE-9.
What does the DB in DB9 stand for?
The letters “DB” are the initials of David Brown , the owner of Aston Martin for a significant part of its history. Although it succeeded the DB7, Aston Martin did not name the car DB8 due to fears that the name would suggest that the car was equipped with a V8 engine (the DB9 has a V12 ).
What is DB9 serial cable?
The DB9 serial straight through cable is used to connect a PC and device using a DB9 serial port. You can find an extensive range The DB9 serial straight through cable is used to connect a PC and device using a DB9 serial port. You can find an extensive range of DB9 Serial Cables at SF Cable.