NDS Dometic SMART-IN SM400-12, Operating Manual

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EN
Pin Function
2 Red LED connection
1-3 External switch connection
1 2 3 4
4 Ground
To enable the remote control, switch the On/Off switch to position 2.
12 Operation
fig.

on page 5
The On/Off switch
To turn the device on, press the On/Off switch to position 1.
To turn the device off, press the On/Off switch to position 0.
To enable the remote control, press the On/Off switch to position 2.
LED indicators
The device is equipped with a green and a red LED indicator, to display operating status.
LED Description
Green The device is on and properly operating
Red Device malfunction
13 Fuse replacement
WARNING!
• Electrocution hazard
• The installation may only be carried out by a qualified electrician.
The device is protected by an integral electronic circuit. Also, fuses are located inside the device. In case of reversed
polarity of a connection, a fuse blows. Devices with IVT function also feature a glass fuse inside the IEC socket for the
external mains connection. Spare fuses are included in the product packaging.
Replacing internal fuses
fig.

on page 5
1. Remove the six screws.
fig.  on page 6
2. Tilt the front panel forward .
3. Remove the lid .
15