DIGITAL: Graphs->Voltage

Description:
------------

The Voltage menu entry displays a graph showing the voltage for each
power supply in the selected host.

MIB Variables:
--------------

Power Sensor Reading - .1.3.6.1.4.1.36.2.18.22.1.8.3.4.1.4.*

Troubleshooting:
----------------

"Warning: no information returned for query" - The selected object's
SNMP agent does not support these particular MIB variables.

"Cannot get SNMP table.  No response arrived before timeout" - This message
means that the request was not returned from the selected object's SNMP agent.
Possibly the SNMP agent is not running or this system is inaccessible.
