RS 232 stands for Recommended standard number 232. This interface is an age old, and yet it is being used for interconnecting DTE and DCE. It is also one of the maximum used standards for data exchange. The simplicity of configuration and huge capability has rendered this standard a very successful run in the interface […]
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DB 9 Loopback
The RS232 connector was initially developed to use 25 pins. In this DB25 connector pin configuration, provisions were provided for a secondary serial RS232 communication channel. However, practically only one serial communication channel with handshaking is present. There were hardly a few computers manufactured in which provision for both RS232 channels were available. For example […]
What is RS 232 ?
RS 232 stands for Recommended standard number 232. RS-232 ,as an interface, has been a standard from many years for interconnecting a Data Circuit Terminating Equipment (DCE) with a Data Terminal Equipment (DTE). Various forms of RS 232 interface are available in the market. However, being different in design and configuration, they are easy in […]
Null Modem cable
Null Modem Cable. A null modem cable is a form of RS-232 standard where the transmit and receive lines are cross linked. Normally a straight through serial cable is used with this kind of adapter. The adapter is pre configured with the necessary cross links. In some cables, handshake lines are also cross linked. The […]