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Certifications

Chapter 20 193

Safety

• US: UL1950

• Canada: CSA 22.2 No. 60950

• Europe: EN60950 (CB Scheme Report)

Working Inside the Digi CM Unit

NOTICE: Do not attempt to service the Digi CM unit yourself, except when

following the instructions from Technical Support personnel. In such a case,

first perform the following actions:

• Turn off the Digi CM unit.

• Ground yourself by touching an unpainted metal surface at the back of the

equipment before touching anything inside your equipment.

Replacing the Battery

A coin-cell battery maintains date and time information. If you have to

repeatedly reset time and date information after turning on the Digi CM unit,

replace the battery.

CAUTION: A new battery can explode if it is incorrectly installed. Replace the

3 Volt CR2032 battery only with the same or equivalent type recommended by

the battery manufacturer. Discard used batteries according to the battery

manufacturer’s instructions.

Rack Mounting Installation Considerations

For a rack setup with forced air, the device can run 0-55° C with no extra space

above or below the device (default design of the Digi CM Rack provides 1/16”

= 2mm between devices).

For a rack setup with no forced air, make sure that the air in-between devices

does not get warmer than 55°C by the following measures:

• Providing space between the devices, or

• controlling the ambient temperature on the rack.

• Distribute weight evenly in the rack to avoid overloading.

• Check equipment nameplate ratings before connecting to the supply circuit

to avoid overloads that may damage over-current protection devices and

supply wiring.

• Maintain reliable earthing for rack-mounting equipment, especially for

supply connections.

Chapter 20

Certifications

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Digi CM Betriebsanweisung Seite 193