> For the complete documentation index, see [llms.txt](https://docs.stenoob.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.stenoob.com/cat-setup/case-catalyst.md).

# Case CATalyst

⚠️ **Important:** Case CATalyst requires your keyboard to be in **TX Bolt** mode.

By default, both the **Stenoob Pro 3** and **Stenoob Pro 4** start in **Gemini PR** mode.

To switch to TX Bolt, follow the [**Toggle Protocol**](/toggle-protocol.md) guide before continuing.

**After switching protocols:**

* **Pro 3:** The LED will **blink rapidly for 5 seconds** to indicate TX Bolt, then return to a **solid green** status LED.
* **Pro 4:** **Purple** = Gemini PR • **Green** = TX Bolt

***

### 1. Verify the COM Port

1. Press **Windows + X** and select **Device Manager**.
2. Expand **Ports (COM & LPT)**.
3. Look for **USB Serial Device (COM#)**.
4. If multiple ports appear, unplug/replug the keyboard to see which one disappears and reappears.
5. Note the **COM#** — you’ll use this in Case CATalyst.

***

### 2. Configure Read Setup

1. In Case CATalyst, go to **Tools → All Options → Read/Manage Notes**.
2. In the **Read Setup** dialog:
   * **Device:** Select **Baron TX**.
   * **Port:** Choose the COM# you verified above.

***

### 3. Configure Translate Setup

1. Go to **Translate → Options → Realtime (tab)**.
2. Under **Writer**, select **Baron TX**.
3. Under **COM Port**, enter the same COM#.
4. Click **Apply**, then **OK**.

***

### 4. Test the Connection

* Try reading or connecting to the keyboard.
* If everything is set correctly, strokes should register in Case CATalyst.

***

### 📺 Video Walkthrough

{% embed url="<https://youtube.com/shorts/V_Kh2FglW0Y?si=sXVS2jZFDZQ-KX0K>" %}

### Notes

> ⚠️ **Protocol**
>
> Case CATalyst requires the keyboard to be in **TX Bolt** mode. If your keyboard is still using the default **Gemini PR** mode, see the **Toggle Protocol** guide.

> ⚠️ **General**
>
> Only one application can access the COM port at a time. Close other steno software (such as Plover) before connecting to Case CATalyst.