DC Power Option
– Wiring and Safety
Acano solution: Installation Guide 76-1002-04-D
Page 16
Appendix A DC Power Option
– Wiring and
Safety
If you are using the DC power option for your Acano Server, you
must
observe the following
additional instructions.
Location
The Acano Server must be installed in a restricted access location within the meaning of UL
60950-1, IEC 60950-1 or equivalent (see
http://www.ul.com
).
Wiring
Use 10 AWG wire for the RTN, -48V and ground (earth) connections. (The RTN is the positive
power connection and the -48V is the negative power connection. The ground (earth) connection
is to the chassis for safety.)
Note: Generally, DC wiring colors are not standardized nationally. Follow the color scheme
applicable to your facility.
Overcurrent protection
Use a 30A circuit breaker on the branch circuit connection to each power supply unit. The circuit
breakers must be approved for use in your facility.
