Bruker Fourier 300 - Peripheral Control Board; GAB;2 Backplane; Intelligent Devices with LVDS; Devices Without Interface

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Z31980_00_03
Design and Function
5.3.2.2 Peripheral Control Board
The peripheral control board takes care of spin, lift, sample control, helium level mea-
surement and also routes the individual shim cables to a standards BOSS1-Connector. It
is controlled via CAN-BUS from the VTU. It also contains temperature sensors to moni-
tors the console and shim stack temperatures. Spin and Lift are controlled using propor-
tional pneumatic valves that require a PWM (pulse width modulation) to set the required
airflow. Please refer to the VTU web server description on how to set up the optimal air
flow settings for spin and lift, as well as how to calibrate the helium level sensor.
5.3.2.3 GAB/2 Backplane
The GAB Backplane provides the GAB/2 Gradient Amplifier with all the necessary infra-
structure to initialize and calibrate the GAB/2 gradient amplifier, i.e. it performs the func-
tion normally carries out by the ELCB Board. It also contains a DC/DC converter to
provide the -24VDC which are otherwise not present in the console. It is controlled via
CAN-Bus from the main board and has an additional slot for an optional ELCB Board
for debug purposes.
The actual control of the gradient information is done via the LVDS interface from the
main board.
5.3.3 Intelligent Devices with LVDS
• GAB/2 Gradient Amplifier
5.3.4 Devices without Interface
• 2 x Transmitters (1H & C13-Channel)
• 1H Preamplifier
• C13 Preamplifier
• Lock Switch (to route C13 Transmitter and Preamp to 2H Lock Coil for gradient
shimming purposes)
• ±5V, 12V & 24V Power Supply (used for VTU, Preamps and Ethernet switch)
• 28 V Power Supply (used for everything else)
• 2 x Ventilators