LTQ Orbitrap XL Hardware Manual

Functional Description
Printed Circuit Boards
Data Acquisition Analog Board
Table 1-4. Diagnostic LEDs of the Data Acquisition Digital PCI board
Name Color Description Normal Operating Condition
+5 V Green +5 V voltage present On
+3.3 V Green +3.3 V voltage present On
+2.5 V Green +2.5 V voltage present On
Figure 1-28 shows the data acquisition analog board (P/N 206 4150).
Figure 1-28. Data Acquisition Analog board
This board is an add-on board to the mainboard of the internal
computer. See Figure 1-26 on page 1-34. It is used to convert analog to
digital signals for Orbitrap experiments, especially for detecting the ions.
The board contains an ADC for the detection of the transient signal,
with a frequency range from 10 kHz to 10 MHz. Three anti-aliasing
filters for the low, middle and high mass range are automatically selected
by the software.
The data acquisition board provides precision timing to control the
acquisition. Events with lower timing requirements on accuracy are
controlled by the linear ion trap.
The diagnostic LEDs listed in Table 1-5 on page 1-37 show the status of
the voltages applied to the board. The position of the LEDs on the
board is indicated by a white rectangle in Figure 1-28.
1-36 LTQ Orbitrap XL Hardware Manual Thermo Fisher Scientific