Db25f DCE Serial Port

I am B.Tech Electronics and Electrical Engineering student. I am in final year so I am making the major project. Can you give me details about the functions of the Db25f Dce Serial Port and give me image of the Db25f Dce Serial Port also so I use it in my project.

I shifted to Irvine, CA and have some official work in Lantronix, Inc Company came to know about the Db25f DCE Serial Port looking for details related to this. Will you provide basic details along with configuration of Db25f DCE Serial Port so I can complete my work?

[pawan]

Lantronix, Inc. is a global provider of secure data access and management solutions for Internet of Things (IoT) assets.

About Db25f DCE Serial Port:

The RS232 spec references two kinds of device, DTE (Data Terminal Equipment) and DCE (Data Computing Equipment).

Here are some helpful guidelines to tell them apart:

1) On DB serial connectors check if pin 2 is an input or an output. There are different rules for DB25s and DB9s.

DB25:

If pin 2 is labeled TX and is an OUTPUT the connector is DTE

If pin 2 is labeled TX and is an INPUT the connector is DCE

DB9:

If pin 2 is labeled RX and is an INPUT the connector is a DTE

If pin 2 is labeled RX and is an OUTPUT the connector is a DCE

This is helpful in most cases, but it is a de-facto standard and may not always apply.

2) A rule of thumb for DB9 and DB25 connectors is: If it's male it is likely to be a DTE, if it's female it's likely to be a DCE.

This is a good place to start if you have no documentation on the serial device. There are many cases where this does not apply, for instance most serial printers have a female DB25 connector, but they are DTEs.

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