USERS MANUAL
NR2110-R/O/G
REVISION
B
DATE
120120
Page #:
29 of 47
www.novuspower.com
Outputs
Each output is fault and electrostatic discharge protected. Each output is
independent, and any output can be faulted for an indefinite period with no
permanent damage. Each output is connected to a monitor circuit that detects a
local fault on the output. The fault status is indicated on the front panel.
Built-in Test
There are numerous power supplies in the design to meet special needs and
noise reduction. All power supply voltages are monitored and can be accessed
via RS232 or Ethernet. In addition, all current channel statuses, or Vrms values,
can be monitored, as well as power supply health.
Power Supplies
The unit is designed to accept power in the range of 90 to 264Vac, 50 to 60 Hz.
This allows global application. The design is such that no action need be taken to
operate from global power types. This feature eliminates installation damage that
occurs in designs that require an input power switch mode be used.
There is an EMI filter between the internal power supply and the available power
being used. This filter minimizes the electrical noise from entering the circuitry
and negatively impacting noise performance. Also, in most applications, the
equipment that surrounds this unit is sensitive and the filter also reduces noise
that could impact the performance of other equipment.
If the optional DC power option is installed, the unit can be powered from nominal
24 Vdc. The output of the DC to DC converter is effectively diode
OR’d with the
AC supply and the DC power supply becomes the prime when the AC power
fails.
Crystal
Novus crystal-based frequency reference products are based upon either TCXO
or OCXO technology. Temperature compensated crystal oscillators will normally
use a AT cut crystal and electronically compensate the device with temperature.
An OCXO device uses a SC (stress compensated) crystal and the part is held at
a fixed temperature to minimize temperature drift.