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Struck Documentation
SIS8300-KU
MTCA.4 Digitizer
Page 83 of 92
10.4 Zone 3 connectors J30 and J31
J30 and J31 are 90 pin right angle female connectors providing 30 contact pairs each (60
signal contacts and 30 ground contacts). Every contact pair is surrounded by a “L” shaped
male shield blade. The shielding contact is designated with the names of the corresponding
signal pair (signal pin a and b is affiliated with shielding contact ab e.g.). The picture below
shows the connector contact layout as seen from the rear side of the board.
10.4.1 J31 connector pin assignments
The J31 connector routes the differential analog input signals of the ADC channels and
ground to the µRTM. The characters “TF” in signal names stand for signals to the AC
coupled transformer input stages. In same fashion “PA” stands for DC coupled preamplifier
input stage.
Col →
Row ↓
ef
f
e
cd
d
c
ab
b
a
10
GND
CH0_PA-
GND
GND
GND
GND
CH0_TF-
9
GND
CH1_TF-
GND
GND
GND
GND
CH1_PA-
8
GND
CH2_PA-
GND
GND
GND
GND
CH2_TF-
7
GND
CH3_TF-
GND
GND
GND
GND
CH3_PA-
6
GND
CH4_PA-
GND
GND
GND
GND
CH4_TF-
5
GND
CH5_TF-
GND
GND
GND
GND
CH5_PA-
4
GND
CH6_PA-
GND
GND
GND
GND
CH6_TF-
3
GND
CH7_TF-
GND
DAC1-
DAC1+
GND
CH7_PA-
2
GND
CH8_PA-
GND
GND
GND
GND
CH8_TF-
1
GND
CH9_TF-
GND
DAC2-
DAC2+
GND
CH9_PA-
10.4.2 J30 connector pin assignments
The J30 connector is used to route power, data and system management pins to the µRTM
board. Pin Assignment is conform to DESY's Zone 3 Connector Pin Assignment Recommen-
dation Class A1 and will be manufacturer configured as Subclass A1.0, A1.0C or A1.1CO
compliant.