.. _gateway-l-interfaces:

Interfaces
==========

The following section presents the standard interfaces for the device in its base configuration. Additional interfaces such as antenna connectors, DE-9 connectors for serial, terminal blocks for GPIO, or additional SIM card slots may be populated on the left/right panels when configured. Please contact CTHINGS.CO for exact mechanical configuration for your desired device.

External Interfaces
---------------------

.. figure:: images/io_front.png
   :width: 90%
   :align: center

   Front I/O

1. **Locking DC barrel jack or 6-pin ATEX connector for power input**

   The device is primarily powered by a 12 V power supply through this standard 5.5 mm DC jack. The centre pin polarity is positive (+: centre pin; -: shell). A built-in mechanism allows for twist-action locking of the jack in order to prevent accidental unplugging. If you opt for the wide voltage range variant, a 6-pin ATEX power connector replaces the DC barrel jack.

2. **2x HDMI 1.4b**

   These two HDMI 1.4b connectors support a resolution and refresh rate of up to 2160p30.

3. **Mini-DisplayPort 1.2**

   These two Mini-DisplayPort 1.2 connectors support a resolution and refresh rate of up to 2160p60.

4. **2x GigE Ethernet RJ-45 interfaces**

   These two standard RJ-45 connectors provides 1 Gbps Ethernet interfaces.

5. **2x USB Type-A 2.0 ports**

   These two Type-A High-Speed-compatible ports can be used with any USB peripheral.

6. **2x USB Type-A 3.1 ports**

   These two Type-A SuperSpeed-compatible ports can be used with any USB peripheral. These are the fastest available USB ports (performance up to 5 Gbps).


.. figure:: images/io_rear.png
   :width: 90%
   :align: center

   Rear I/O


7. **Power button & power indicator LED**

   The power button allows the user to turn the device on and off. The power indicator LED notifies the user that the device is operational and the compute module is working.