Digi CM - Manual (Page 150)

Rack Mounting Installation
150 Chapter 17
• Locate the DC supply source within the same premises as the equipment.
• Route away and secure all DC input wiring from sharp edges to prevent
chaffing as well as provide strain relief.
• Provide a readily accessible disconnect device and protective device a
fixed wiring for a DC power supply suitable for the specified rated voltage
and current. Disconnect and protective devices to be rated 2A Amps
maximum.