# TCP connection to establish communication with Telenet device

**URL:** <https://discourse.nodered.org/t/tcp-connection-to-establish-communication-with-telenet-device/61974>\
**Category:** General\
**Created:** [29 April 2022 19:50 UTC](https://discourse.nodered.org/t/tcp-connection-to-establish-communication-with-telenet-device/61974 "2022-04-29T19:50:07Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Michael\_Wood](https://avatars.discourse-cdn.com/v4/letter/m/ed8c4c/32.png) [@Michael\_Wood](https://discourse.nodered.org/u/Michael_Wood)\
**Post date:** [29 April 2022 19:50 UTC](https://discourse.nodered.org/t/tcp-connection-to-establish-communication-with-telenet-device/61974/1 "2022-04-29T19:50:07Z")

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Any advice on how to send a TCP response to device running Telenet connections? I can ping/connect to the device via the tcp in node but i need to select interface connection 1 at this point and I am not sure how to send that communication back. I have tried multiple things so far with no luck.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/6/e/6ee07f7a11a4033fda1f35dd5f28c89054dcaf10.png)  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/e/1/e181461014a485fa302ab8c64be9e49ccf71c901.png)

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**Author:** ![TotallyInformation](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/totallyinformation/32/31_2.png) [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Post date:** [29 April 2022 20:26 UTC](https://discourse.nodered.org/t/tcp-connection-to-establish-communication-with-telenet-device/61974/2 "2022-04-29T20:26:17Z")

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Can't you take the output from the tcp node, use a change node to create a new payload with the correct characters and loop it back to the input?

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [28 June 2022 20:26 UTC](https://discourse.nodered.org/t/tcp-connection-to-establish-communication-with-telenet-device/61974/3 "2022-06-28T20:26:47Z")

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