PulseBlasterESR-PRO
IV. Connecting to the PulseBlasterESR-PRO
The PulseBlasterESR-PRO functionality is available on SP4B, SP18A , SP19 boards, and SP45 USB
rackmount system. The connectors for the PulseBlasterESR-PRO boards and USB rackmount system are
explained below in their respective sections.
Connector Information for PulseBlasterESR-PRO Boards
On the PCI boards (SP4B, SP18A, SP19), there are three main connector banks: the BNC headers, the
IDC headers, and the Trigger/Reset header. Additionally, the SP18A and SP19 boards offer SMA headers.
Please refer to the sections below for detailed connector information.
Connector Locations for the SP4B board
Figure 5 shows the connector locations for SP4B boards.
BNC Headers
The four BNC headers provide access to the least significant four bits of the flag word. Bit 3 is
connected to the output farthest from the PCI connector, and Bit 0 is connected to the connector closest to the
PCI connector. Please note that the BNC connectors have the same configuration for all board models.
If using a high input impedance oscilloscope to monitor the PulseBlasterESR-PRO'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 6 and 7 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.
2019/09/26
Figure 5:
Connector locations for SP4B. The SP4B board is shown on the
first page of this manual, left picture.
BNC3
BNC2
BNC1
BNC0
Flag0...11 Out
Flag12..23 Out
Flag24..35 Out
H
W
T
R
IG
/R
E
S
E
T
