Chapter 2
Safety, Environmental & Regulatory Information
2.4.3. Cabling rules
Shielded cables must be used for Ethernet and USB connectivity to comply with the EMC
requirements.
USB cable must be
• shorter than 3m;
• USB 2.0 type
• Maximum current per contact : 0.5A (or better)
• “A” plug connected to the eWON
2.4.4. Environmental conditions
The equipment will operate properly within the following environmental limits if it has been
correctly mounted according to the above mentioned recommendations:
Operating T° -25°C to +70°C
Relative Humidity 10 to 95% non-condensing
Operating altitude Up to maximum 2000m
Storage temperature -40 to +70 °C
Storage Humidity 10 to 95% non-condensing
Storage altitude Up to maximum 3000m
2.4.5. Earthing
Earthing the eWON is necessary to eliminate unwanted transients (lightning protection) and
to conform to the EMC requirements. Therefore, a functional earth (FE) terminal is available
on the main connector as shown in A.2. Specification of the External Power Supply, Connect
this terminal directly to allow impedance ground. Shielded cables have to be used for
Ethernet and USB to comply with the EMC requirements.
2.5. Battery
The COSY contains a CR2032 battery. This battery is used to maintain the real time clock up-
to-date even when the unit is not powered.
- Caution -
Risk of explosion if battery is replaced by an incorrect type.
The battery is not attended to be replaced on consumer's side. The product shall be returned
to manufacture for replacement.
Page 10 / 30 eWON COSY 131 | IG 022
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