What is an RS-232 cable used for?

One very common example that many people are probably familiar with is a computer connected to a printer. While USB has become the standard, RS232 is still widely used for older printers in the workplace. The RS232 protocol and cable allow the computer to give commands to the printer via a voltage signal.

What is a RS-232 Jack?

RS232 connector is a port used for data exchange between equipments. It was designed for data exchange between DTE (Data Terminal Equipment) or PC and DCE (Data Communication Equipment) or MODEM.

Does RS-232 carry audio?

Significantly in the AV industry, RS-232 does not transmit audio and video signals, but is used specifically for control of devices in an AV system; so source devices such as some BluRay players and digital media players, display devices such as televisions and projectors, as well as signal control products such as …

Is RS-232 a VGA cable?

But I’m curious because you say that the connectors look “exactly like VGA ports.” Usually RS232 utilizes a DB9 (DE9 for the educated and/or purist) with is the same size as a VGA (HD15) but has only 9 pins in two rows instead of 15 pins in three rows.

Is RS232 a serial port?

Serial means that the data bits are send one by one after the other. RS-232 was commonly used in computers to connect devices like a printer or a telephone modem. In computer terminology the RS-232 connector is often referred to as the “serial port”.

Where is RS-232 port in PC?

1) on the back of the computer. Computer programs can send data (bytes) to the transmit pin (output) and receive bytes from the receive pin (input). The other pins are for control purposes and ground. The serial port is much more than just a connector.

What is RS-232 port on laptop?

Laptops, Notebooks and Tablets with Serial (RS232) ports The need for a serial port (or RS232 port) on a laptop, notebook or tablet that is built-in a portable device rather than a desktop still exists.

Can I use VGA port as serial port?

No it will not work with a VGA monitor. If it is specifically marked as RS-232 (or with a string of one’s and zero’s), then it is a serial port for things like serial mice. If it on the other hand, it is marked with Mon. or a rectangle, then it is a DE-9 connector for CGA or EGA monitors.

What’s the difference between VGA port and serial port?

RS232 and VGA perform two completely different functions with your projector. You will need the RS232 connection so that you can control the projector, while the VGA connection sends the video to the projector to display on the screen.

Why do we need RS-232?

RS232 is a standard protocol used for serial communication, it is used for connecting computer and its peripheral devices to allow serial data exchange between them. As it obtains the voltage for the path used for the data exchange between the devices.

Can I use Cat6 cable for RS232?

Also, when communicating with standard RS232, the limiting factor is capacitance and not resistance. Current levels are so low that voltage loss over any reasonable cable length, even with Cat5 or Cat6, isn’t going to hurt.

Can Cat6 be used for RS232?

Product Description. DB9 Serial RS232 Port to RJ45 Cat5/Cat6 adapter, Interface: DB9 Male to RJ45 female; 9pin/8P8C. the adapter run RS232 data over long distances (up to 100m) using UTP Cat 5/ Cat6 cable to bridge the gap.

What voltage is RS-232?

Valid RS-232 signals are either in the range of +3 V to +15 V or the range −3 V to −15 V with respect to the common ground (Figure 1-1). To be more specific, the driver output is Logic 0 when the voltage is between +5 V and +15 V and is Logic 1 when the voltage is between -5 V to -15 V.

What is the 9 pin port on a computer 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.