4. Installation
4.1. Mounting
This product should be mounted on a 35 mm DIN-rail, which is horizontally mounted
inside an apparatus cabinet or similar. It is recommended that the DIN-rail is connected to
ground. Snap on the product to the DIN-rail according to the figure.
The MRD-415 includes an integrated mounting flange and can be attached to a panel or
tray by means of screws, using the slots provided. Alternatively, it can be DIN rail mounted,
using the DIN rail mounting kit.
Figure 5. Mounting of product
4.2. Power Supply
The MRD requires a DC power source in the voltage range of 10 to 60 VDC. The product
is designed to self-protect from permanent damage if the voltage exceeds 60 VDC or if
reverse polarity is applied. The product may need to be returned for service if this occurs.
The product can also be damaged if there is any potential difference between the chassis-
ground, RS-232 signal ground, power (–) input, or antenna shield. Before connecting any
wiring, ensure all components are earthed to a common ground point. An external isolator
will be required if a positive earth power supply is used.
4.3. Antennas
The units have three antenna connectors (SMA). Please ensure that the connecting nut is
done up tightly in order to make a good connection.
4.4. Protective Earth Connection
For correct function, the earth connection needs to be properly connected to a designated
PE rail. See the figure below.
MRD-415 and MRD-455
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