Birdog serial cable pinout

A smaller connector became necessary as the technology required smaller USB sizes for many items like modern mobile phones and audio devices.

Thus, the USB Microcontroller was born. However, these versions are smaller, and you can use them for much thinner lines of equipment. Standard older micro USB connectors have five pins, while the less common 3. It allows you to switch between the peripheral and host roles on your devices. For instance, plugging an android phone into a laptop.

The laptop will charge the phone if you have a charge-only cable, not the phone charging the laptop. So you can transfer data between both systems. Well, creating such a connection would mean the cable would receive equal amounts of voltage 5V from both computers. Thus, connecting both power supplies and causing irreparable damage and other issues. Sometimes, it may even cause a fire hazard. Well, that wraps up this article. File Upload. The basic example of these two types of equipment defines a computer as a DTE device with a modem filling the role of DCE.

The RS protocol specifies the operation mode, electrical standards, number of bits, and voltage levels to be used when transferring data between a DTE and DCE. 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 with the number used to differentiate between the pin counts. The plugs contain sockets and pins, with each pin numbered and labeled. A serial pinout diagram is presented below. The RS protocol uses a 9 pin serial port that can have either male or female connectors.

The most recent version of the protocol is known as RSC. RSC retains the features of RS but uses 25 pins rather than a 9 pin serial pinout. Whether a DB9 serial pinout or a 25 pin connection is used, only three of the pins are required to connect terminal devices.

The signal level on the DTR and RTS lines is also controlled by the test software and the attached inputs are read back in the software to see if these signal levels are properly returned. The second RS test plug has the advantage that the ring-indicator RI input line can also be tested. This input is used by modems to signal an incoming call to the attached computer. The only problem is the large variety of RS null modem cables available. For simple connections, a three line RS cable connecting the signal ground and receive and transmit lines is sufficient.

Depending of the software used, some sort of handshaking may however be necessary. Use the RS null modem selection table to find the right null modem cable for each purpose. RS null modem cables with handshaking can be defined in numerous ways, with loop-back handshaking to each PC, or complete handshaking between the two systems. The most common null modem cable types are shown here. Home Interfacing Software About Sitemap. EN NL. About the Author: Lammert Bies is a dad, husband and polyglot.

RS DB9 pinout. A good answer is easier with a clear question giving the make and model of everything. I'm sure you've probably already found this info. It's not in the manual. For other users who need it, this pinout is: Serial RJ45 Before you can reply to a message You must first register for a Remote Central user account - it's fast and free!

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