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PulseBlasterESR-PRO-II
IV. Connecting to the PulseBlasterESR-PRO-II
Connector Information
There are three main connector banks on the PulseBlasterESR-PRO-II board: the BNC headers, the IDC
headers, and the Trigger/Reset header.
BNC Connectors
The four BNC connectors provide access to the least significant four bits of the flag word. On PCI boards,
Bit 3 is connected to the output farthest from the PCI connector, and Bit 0 is connected to the connector
closest to the PCI.
If using a high input impedance oscilloscope to monitor the PulseBlasterESR-PRO-II's output via the
BNC connectors, place a resistor that matches the characteristic impedance of the transmission line in
parallel with the coaxial transmission line at the oscilloscope input (e.g., a 50 Ω resistor with a 50 Ω
transmission line, see Figures 4 and 5 below). When using an oscilloscope with an adjustable bandwidth, set
the bandwidth to as large as possible. Failure to do so may yield inaccurate readouts on the oscilloscope.
2016/08/17
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Figure 3:
Connector Locations.
BNC3
BNC2
BNC1
BNC0
Flag
0 - 11
Flag
12-23
HWTRIG/
RESET
Figure 4:
Left: BNC T-Adapter and
Right: BNC (M) 50 Ohm resistor.
