# Installation

Source: https://help.malighting.com/grandMA3/2.4/HTML/key_io_node_installation.html
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|                                            |                                                                                                                                                                                                           |
| ------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| ![](/img/grandma3/2-4/tip_gray-639af3.png) | **Hint:** The grandMA3 I/O Node can be connected with the power cable. Only the grandMA3 I/O Nodes DIN-Rail need to be installed on the rail following DIN EN 60715 and the instructions below. |

|                                                  |                                                                                                                                    |
| ------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------- |
| ![](/img/grandma3/2-4/important_gray-89eed8.png) | **Important:** Install the grandMA3 I/O Node DIN-Rail horizontally so that the input terminal is located at the bottom.  |

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| ----------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| ![](/img/grandma3/2-4/warning-99d629.png) | **Warning:** In order for the device to dissipate heat, comply with a minimum distance of 30 mm (approx. 2 inches) above and beneath the grandMA3 I/O Node DIN-Rail.  |

 

1.  Install the grandMA3 I/O Node DIN-Rail onto the rail.

![](/img/grandma3/2-4/img_install_on_rail_1_1-a69fc1.png)

Place the grandMA3 I/O Node DIN-Rail on the rail. 

 

![](/img/grandma3/2-4/img_install_on_rail_2_1-078b92.png)

Snap into place

2. Build the I/O Node DIN-Rail into the switchboard.

 

### Connections

![](/img/grandma3/2-4/img_gm3_io-node-din-rail_connections_power-373b6e.png)

Connect with electrical grid

-or- 

![](/img/grandma3/2-4/img_gm3_io-node-din-rail_connections_poe-0cb308.png)

Connect via PoE

 

| Power                 |                                                                |
| --------------------- | -------------------------------------------------------------- |
| Connector             | MC 1.5/ 3-ST1-5.08                                             |
| Rigid cables          | 0.75 mm² - 1.5 mm² (18-16 AWG)                                 |
| Flexible cables       | 0.75 mm² - 1.5 mm² (18-16 AWG) Wire end sleeves are permitted. |
| Wire stripping length | 7 mm                                                           |
| Tightening torque     | 0.22 Nm - 0.25 Nm                                              |

| MIDI & LTC            |                                                                 |
| --------------------- | --------------------------------------------------------------- |
| Connector             | FK-MC 0.5/ 3-ST-2.5                                             |
| Rigid cables          | 0.14 mm² - 0.5 mm² (26-20 AWG)                                  |
| Flexible cables       | 0.14 mm² - 0.5 mm² (26-20 AWG) Wire end sleeves are permitted.  |
| Wire stripping length | 8 mm                                                            |

| DC Remote             |                                                                 |
| --------------------- | --------------------------------------------------------------- |
| Connector             | FK-MC 0.5/ 7-ST-2.5                                             |
| Rigid cables          | 0.14 mm² - 0.5 mm² (26-20 AWG)                                  |
| Flexible cables       | 0.14 mm² - 0.5 mm² (26-20 AWG) Wire end sleeves are permitted.  |
| Wire stripping length | 8 mm                                                            |