# Console Connection using OpenTap **URL:** \ **Category:** General\ **Created:** [August 9, 2022, 6:34am UTC](https://forum.opentap.io/t/console-connection-using-opentap/795 "2022-08-09T06:34:27Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![sam836](https://avatars.discourse-cdn.com/v4/letter/s/cab0a1/32.png) [@sam836](https://forum.opentap.io/u/sam836)\ **Post date:** [August 9, 2022, 6:34am UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/1 "2022-08-09T06:34:27Z")
Hi, I need to create a console connection plugin to be able to communicate with my keysight instruments . Can someone guide how to create a plugin for console connection? ---
**Author:** ![rolf\_madsen](https://avatars.discourse-cdn.com/v4/letter/r/43a26b/32.png) [@rolf\_madsen](https://forum.opentap.io/u/rolf_madsen)\ **Post date:** [August 9, 2022, 7:44am UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/2 "2022-08-09T07:44:43Z")
What kind of console connection are we talking about here? Can you be more specific? If it is a Keysight instrument, you should probably use SCPI. ---
**Author:** ![sam836](https://avatars.discourse-cdn.com/v4/letter/s/cab0a1/32.png) [@sam836](https://forum.opentap.io/u/sam836)\ **Post date:** [August 9, 2022, 8:24am UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/3 "2022-08-09T08:24:12Z")
Hi @rolf_madsen , Console connection will be needed to communicate with DUT. DUT in this case is 4G/5G Radio. For keysight instrument we can use SCPI. ---
**Author:** ![rolf\_madsen](https://avatars.discourse-cdn.com/v4/letter/r/43a26b/32.png) [@rolf\_madsen](https://forum.opentap.io/u/rolf_madsen)\ **Post date:** [August 9, 2022, 8:33am UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/4 "2022-08-09T08:33:51Z")
But you said: > “I need to create a console connection plugin to be able to communicate with my keysight instruments” Did you actually mean “DUT” and not “keysight instruments”? ---
**Author:** ![sam836](https://avatars.discourse-cdn.com/v4/letter/s/cab0a1/32.png) [@sam836](https://forum.opentap.io/u/sam836)\ **Post date:** [August 9, 2022, 10:05am UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/5 "2022-08-09T10:05:20Z")
yes, i actually mean DUT. ---
**Author:** ![rolf\_madsen](https://avatars.discourse-cdn.com/v4/letter/r/43a26b/32.png) [@rolf\_madsen](https://forum.opentap.io/u/rolf_madsen)\ **Post date:** [August 9, 2022, 1:09pm UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/6 "2022-08-09T13:09:25Z")
OK, I have previously used `Renci.SshNet` for SSH communication with a DUT. If your DUT supports SSH you can try the same. You can create a ‘shell’ connection and send multiple commands. You previously noted that you had problems with cd/current directory. This can be fixed by using the same shell for multiple commands, but in practice it can be a bit tricky to actually use it this way. Here is a project where they use it: [Tap.Plugins.UMA.SSH/Instruments/SshInstrument.cs · master · OpenTAP / Plugins / University of Malaga / UMA SSH Plugin · GitLab](https://gitlab.com/OpenTAP/Plugins/university-of-malaga/uma-ssh-plugin/-/blob/master/Tap.Plugins.UMA.SSH/Instruments/SshInstrument.cs) ---
**Author:** ![sam836](https://avatars.discourse-cdn.com/v4/letter/s/cab0a1/32.png) [@sam836](https://forum.opentap.io/u/sam836)\ **Post date:** [August 9, 2022, 1:25pm UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/7 "2022-08-09T13:25:44Z")
Is there any option if DUT does not support SSH? I need to use console for the first time connection to DUT. How can I create a shell connection to send multiple commands, can you guide? ---
**Author:** ![rolf\_madsen](https://avatars.discourse-cdn.com/v4/letter/r/43a26b/32.png) [@rolf\_madsen](https://forum.opentap.io/u/rolf_madsen)\ **Post date:** [August 9, 2022, 1:56pm UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/8 "2022-08-09T13:56:56Z")
Sure, you can use things such as telnet or a serial connection. A ‘shell connection’ is not really a concept I know, so you need to be way more specific. Can you explain how you connect to your DUT now? ---
**Author:** ![brennen\_direnzo](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.opentap.io/brennen_direnzo/32/6_2.png) [@brennen\_direnzo](https://forum.opentap.io/u/brennen_direnzo)\ **Post date:** [August 9, 2022, 2:17pm UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/9 "2022-08-09T14:17:12Z")
If you are using SSH, you can leverage this plugin: > **[OpenTAP / Plugins / Keysight Technologies / SshSteps · GitLab](https://gitlab.com/OpenTAP/Plugins/keysight/sshsteps)** > > Small package with some basic SSH TestSteps [https://packages.opentap.io/index.html#/?name=SSH&version=0.3.0-beta.8%2B7b4c999b&os=Windows,Linux&architecture=AnyCPU](https://packages.opentap.io/index.html#/?name=SSH&version=0.3.0-beta.8%2B7b4c999b&os=Windows,Linux&architecture=AnyCPU) ---
**Author:** ![alan\_copeland](https://avatars.discourse-cdn.com/v4/letter/a/b782af/32.png) [@alan\_copeland](https://forum.opentap.io/u/alan_copeland)\ **Post date:** [August 9, 2022, 10:40pm UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/10 "2022-08-09T22:40:22Z")
Maybe you can explain / demonstrate how you do the setup today more explicitly. I think the term “console” is too generic in this instance, but if you could describe it there is probably a good solution possible ---
**Author:** ![smartkuku](https://avatars.discourse-cdn.com/v4/letter/s/fbc32d/32.png) [@smartkuku](https://forum.opentap.io/u/smartkuku)\ **Post date:** [August 10, 2022, 5:54am UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/11 "2022-08-10T05:54:21Z")
I guess maybe you are talking about uart communication with DUT. If this is true, just use the SerialPort class in .Net. ---
**Author:** ![sam836](https://avatars.discourse-cdn.com/v4/letter/s/cab0a1/32.png) [@sam836](https://forum.opentap.io/u/sam836)\ **Post date:** [August 10, 2022, 9:04am UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/12 "2022-08-10T09:04:43Z")
Hi, The serial communication is needed before the ethernet connection is enabled in DUT board. to perform u-boot of board. Once ethernet connection gets enables ssh plugin can be used. but how can we communicate when ethernet connection is not enabled yet on DUT board ---
**Author:** ![rolf\_madsen](https://avatars.discourse-cdn.com/v4/letter/r/43a26b/32.png) [@rolf\_madsen](https://forum.opentap.io/u/rolf_madsen)\ **Post date:** [August 10, 2022, 1:48pm UTC](https://forum.opentap.io/t/console-connection-using-opentap/795/13 "2022-08-10T13:48:49Z")
OK, so you connect to the DUT via USB and then that shows up as a COM port in Windows Device Manager?