> For the complete documentation index, see [llms.txt](https://help.security.gallagher.com/knowledge-hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.security.gallagher.com/knowledge-hub/products/integrations/third-party-readers/salto/salto-hardware/salto-ubox4000-and-cu42e0-controllers.md).

# Configure UBOX4000 and CU42E0 controllers

Configure UBOX4000 and CU42E0 controllers for Gallagher Wiegand reader connections.

These controllers connect a Salto wired reader to a Gallagher Wiegand input.

* **UBOX4000** works **only as an updater**. It pushes data to third parties (Gallagher) to open a door. It **cannot open physical doors** or run other SALTO door controllers, and requires **SALTO Space v6.5.2.1+**. Although labelled CU42E0, it **cannot** be used as one.
* **CU42E0** is the **master door controller** (2 onboard doors, plus an auxiliary CU42E0/CU4EB8 for lift, floor, and alarm). It can act as a UBOX, but is more expensive.

### Salto Space CUADAP configuration

Go to SALTO Network → the UBOX-4000 or CU42E0 node → the input (3/4/5/6) → Edit → Type **CUADAP**, option **24. WIEGAND – WIEGAND CODE – Software defined**, then choose the reader.

**Firmware minimums:** UBOX4000 Device 0163 v01.01+; CU42E0 Device 0119 v02.30+. Place the file in `C:\SALTO\ProAccess Space\firmwares`, then System → SALTO Network → Show Firmware → Update.

### Wire an HBUS Wiegand module

| UBOX4000/CU42E0 | HBUS Wiegand Module |
| --------------- | ------------------- |
| IN5 +           | DATA0               |
| IN6 +           | DATA1               |
| IN5 -           | GND                 |

{% hint style="warning" %}
A common ground (black wire) between the UBOX4000/CU42E0 and the Gallagher Wiegand module is required.
{% endhint %}

![UBOX4000/CU42E0 IN5/IN6 terminal wiring photo (with Ethernet)](https://328339335-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6bM8WhlBE9BYizPWJaPN%2Fuploads%2Fgit-blob-4746bbc7c3071f9a6d14f392115762ddbd449496%2FSECHUB-SALTO-04-ubox4000-in-terminals.png?alt=media)

### Mobile credential support (CC v9.40+)

128-bit Wiegand enables mobile credentials at wired SALTO readers via UBOX4000/CU42E0, in **SALTO Native mode only**.

{% hint style="warning" %}
Moving to 128-bit is not reversible to 64/26-bit. Command Centre alarms to configure Salto Space to 128-bit; existing cards still work at 64/26-bit; 128-bit also works with CUADAP CU9000 (cards only). Only recent Salto wired reader models support Mobile Connect as a third-party reader. Device 0125 readers need upgrading.
{% endhint %}


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