> For the complete documentation index, see [llms.txt](https://aldmodels.gitbook.io/aldmodels/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://aldmodels.gitbook.io/aldmodels/pulse-core/specifications.md).

# Specifications

### Hardware

| Specification          | Value                                             |
| ---------------------- | ------------------------------------------------- |
| Size                   | 28.4 x 35.4 x 13 mm                               |
| Input Voltage          | 7V to 21V DC                                      |
| Output protection      | Thermal, under-voltage and overcurrent protection |
| Maximum output current | 2.1A continuous, 4.4A peak                        |

### Connectivity and control

| Specification            | Value                                                        |
| ------------------------ | ------------------------------------------------------------ |
| WiFi                     | 2.4GHz                                                       |
| Control method           | Web browser on phone, tablet or computer                     |
| Simultaneous controllers | Up to 5 phones, tablets or computers at once, with live sync |
| Firmware updates         | Over WiFi                                                    |

### Output Modes

Pulse Core works with either type of power locomotive. You choose the mode in [settings](/aldmodels/pulse-core/navigating-the-interface/settings.md#locomotive).

|                    | DCC Mode                       | DC Mode                             |
| ------------------ | ------------------------------ | ----------------------------------- |
| Use with           | Locomotives with a DCC decoder | Simple DC motor locomotives         |
| Locomotive address | 1 to 9999                      | Not needed                          |
| Speed control      | 126 speed steps                | Smooth speed control from 0 to 100% |
| Functions          | F0 to F28                      | Not available                       |
| Coast to stop      | No                             | Yes                                 |
| Speed limits       | Yes                            | Yes                                 |

{% hint style="info" %}
For reliable operation, we recommend keeping continuous motor current within Pulse's 2.1 A rated output. The controller includes built-in protection against overcurrent and overheating.

You can monitor motor current in real time from the **Live** tab under [Analytics](/aldmodels/pulse-core/navigating-the-interface/analytics.md#live-tab).
{% endhint %}