12.9
GN401 Optical Fiber Isolated 100 MS/s input card
l
4 transmitters per receiver
card
l
Digital fiber optic connection,
noise/error and drift free
l
Cable length up to 800 m
l
Automatic cable length phase
compensation
l
1 isolated, unbalanced
differential input per
transmitter
l
Battery powered transmitter
l
1.8 kV RMS
isolation
continuous powered transmitter
l
±
20 mV to
±
100 V input ranges
l
Analog/digital anti
-
alias filters
l
15 or 14 bit resolution
l
Metal BNC input on transmitter
The optical fiber isolated system consists of up to four transmitter units (GN110,
GN111, GN112 or GN113) connected to the GN401 receiver card built into any
GEN series mainframe using a digital fiber optic cable.
By converting the analog signal into a digital signal and transmitting the signal
to the receiver card via fiber optic cable, the transmission does not add any drift
or error to the measured signal. The automatic cable length compensation
phase matches all fiber optic isolated channels to any standard analog input
channel. The GN112 and GN113 offer continuous powered isolation at 1.8 kV
RMS, while the GN110 and GN111 offer higher isolation options using battery
power with an continuous operation time of 30 hours. Optimum anti
-
alias
protection is achieved by the 6
-
pole analog anti
-
alias filter combined with a fixed
sample rate Analog
-
to
-
Digital converter. At lower sample rates the digital anti
-
alias filters allow for a large range of 8
th
order Bessel IIR filters with precise
phase match and ultra low noise output.
The GN112 and GN113 offer continuous powered isolation at 1.8 kV RMS,
while the GN110 and GN111 offer higher isolation options using battery power
with an continuous operation time of 30 hours.
For more information on the GN401 Optical Fiber Isolated 100 MS/s input card,
please refer to "B2629–2.1 en (GEN series GN401)" on page 383.
GEN3i
I3763-3.1 en HBM: public
293
