> ## Documentation Index
> Fetch the complete documentation index at: https://docs.marcus.involvecloud.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Generic Telnet

> Raw line-oriented Telnet transport. Custom command strings sent as configured; useful for legacy AV gear.

**Works with:** Control processors, matrix switchers, older displays and other devices with a line-based Telnet interface.

|                                  |                                    |
| -------------------------------- | ---------------------------------- |
| **Type**                         | Generic adapter                    |
| **Device types**                 | Display, Audio, Camera, Control    |
| **Connection**                   | Telnet (TCP, the port you specify) |
| **Power on/off from the portal** | No                                 |
| **Protocol in the portal**       | Generic Telnet (`telnet`)          |

## Before you start

1. Find the device's Telnet port and the command strings it accepts.

## Add the device

1. In the portal, go to **Devices** and select **New device**.
2. Choose the **Collector** that can reach the device, and set **Protocol** to **Generic Telnet**.
3. Enter the settings below and save. The Collector picks up the new device within five minutes.

| Setting      | Required | What to enter                                         | Example            |
| ------------ | -------- | ----------------------------------------------------- | ------------------ |
| **Address**  | Yes      | host:port of the Telnet endpoint.                     | `192.168.70.10:23` |
| **Commands** | No       | Named command strings sent on demand from the portal. |                    |

## Readings

Reachability and response time are recorded on every poll. The device's own values depend on what its endpoint returns.

## Commands

Commands are strings you define per device in the **Commands** section of the device form. Each one becomes a button on the device page. Put `{name}` in a command to ask for a value when the button is pressed.