Keysight u2722a - Figure 1-2 55-Pin Backplane Connector Pin Configuration

Getting Started 1
Keysight U2722A/U2723A User’s Guide 29
55-pin backplane connector pin configuration
The 55-pin backplane connector is used when the U2722A/U2723A module is
inserted into the U2781A USB modular instrument chassis. For more details, refer
to the Keysight U2781A USB Modular Instrument Chassis User's Guide.
Figure 1-2 55-pin backplane connector pin configuration
GND
NC
GND
TRIG4
nBPUB
NC
11
GND
NC
TRIG3
GND
CLK10M
NC
10
GND
NC
GND
TRIG5
GND
NC
9
GND
NC
STAR_TRIG
NC
8
TRIG2
GND
GND
NC
ND
TRIG6
GA2
NC
7
GND
NC
TRIG1
GND
GA1
NC
6
GND
NC
GND
TRIG7
GA0
NC
5
GND
NC
TRIG0
GND
NC
NC
4
GND
VBUS
GND
+12 V
+12 V
+12 V
3
GND
GND
GND
+12 V
+12 V
+12 V
2
GND
USB_D–
USB_D+
GND
+12 V
+12 V
1
F
E
D
C
B
A
Table 1-1 SSI connector pin description
SSI timing signal Functionality
GND Ground
NC Not connected
VBUS USB bus power sensing input
USB_D+, USB_D– USB differential pair
TRIG0~TRIG7 Trigger bus
+12 V +12 V power with 4 A current
nBPUB USB backplane input detect
CLK10M 10 MHz clock source
STAR_TRIG Star trigger
GA0,GA1,GA2 Geographical address pin