> For the complete documentation index, see [llms.txt](https://docs.yobiiq.com/rm200/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yobiiq.com/rm200/device/physical-interfaces.md).

# Physical Interfaces

This page describes how the physical interfaces on the device operate.

## **Device Status LED**

<table><thead><tr><th width="318">Status</th><th>Led Indication</th></tr></thead><tbody><tr><td>Device Start Procedure</td><td>Red/Green Sequence (200ms RED / 200ms GREEN)</td></tr><tr><td>LoRa Join process</td><td>Orange Blink (200ms ON / 200ms OFF)</td></tr><tr><td>LoRa Uplink Transmission</td><td>Green Blink (200ms ON / 200ms OFF)</td></tr><tr><td>Device failed to send uplink</td><td>Red Blink (200ms ON / 200ms OFF) - 5 cycles</td></tr><tr><td>Low battery level</td><td>Red/Orange Sequence (1s Red / 500ms Orange) - once every 120 seconds.</td></tr><tr><td>Network Quality test running</td><td>Red/Orange Sequence (200 ms RED / 200ms ORANGE)</td></tr><tr><td>Network Quality test result</td><td>Bad : Red Blink (200ms ON / 200ms OFF) - 10 s <br>Medium : Orange Steady : 10 s <br>Good : Green Steady : 10 s</td></tr><tr><td>Device Error</td><td>Red Solid</td></tr><tr><td>Device Ok</td><td>Green Solid</td></tr></tbody></table>

## **Channel 1 LED**

The Channel 1 LED is used to display the current status of Channel 1.

| Status            | Led Indication                             |
| ----------------- | ------------------------------------------ |
| Relay On, Auto    | Green, Solid                               |
| Relay Off, Auto   | Red, Solid                                 |
| Relay On, Manual  | Green/White Sequence (1s Green / 1s White) |
| Relay Off, Manual | Red/White Sequence (1s Red / 1s White)     |

## **Channel 2 LED**

The Channel 1 LED is used to display the current status of Channel 1.

| Status            | Led Indication                             |
| ----------------- | ------------------------------------------ |
| Relay On, Auto    | Green, Solid                               |
| Relay Off, Auto   | Red, Solid                                 |
| Relay On, Manual  | Green/White Sequence (1s Green / 1s White) |
| Relay Off, Manual | Red/White Sequence (1s Red / 1s White)     |

## Status Button

The iQ RM is equipped with a status button, available from the enclosure top.\
The status button can be used for the following actions;

* **Restart Device** (short press < 2 seconds)
* **Start join procedure** (short press > 5 seconds)

## Channel 1 Button

This button can be used to change the relay output from “Normal Mode” to “Manual On” to “Manual Off”, see below diagram.

<figure><img src="https://3603078914-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fv9GvUoQS58jj9wJfCjBF%2Fuploads%2FiCLkKjjQwIftB4JzE6MG%2FButtons%20RM200.png?alt=media&amp;token=48d6ede1-7dc6-4a33-ae5e-a28edcb70dc0" alt=""><figcaption><p>Flowchart Relay Channel Button</p></figcaption></figure>

## Channel 2 Button

This button can be used to change the relay output from “Normal Mode” to “Manual On” to “Manual Off”, see below diagram.

<figure><img src="https://3603078914-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fv9GvUoQS58jj9wJfCjBF%2Fuploads%2FiCLkKjjQwIftB4JzE6MG%2FButtons%20RM200.png?alt=media&amp;token=48d6ede1-7dc6-4a33-ae5e-a28edcb70dc0" alt=""><figcaption><p>Flowchart Relay Channel Button</p></figcaption></figure>

## Buzzer

The buzzer is used to alert an error in the product locally. The buzzer only sounds during the allowed start and end time.

| Status                       | Action                                                                                  |
| ---------------------------- | --------------------------------------------------------------------------------------- |
| Device failed to send uplink | Sound 1x (100ms)                                                                        |
| Network Quality test result  | <p>Bad : Sound 3x (100ms) <br>Medium : Sound 6x (100ms) <br>Good : Sound 9x (100ms)</p> |