American Magnetics 135 & 136 Liquid Helium Level Instruments (CE-Marked) - Manual (Page 16)

4 Rev. 3
Introduction
Model 135 Rear Panel Layout
1.3 Model 135 Rear Panel Layout
1
Optional RS-232 or GPIB
communications port
(RS-232 shown)
3
Sensor input DB-9 female
connector (see the Appendix for
the pinout diagram)
2
Auxiliary DB-9 male connector
(see Appendix for pinout)
4
Power cord connector
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2$. 5,'*( 71 86$
RS-232
J8 S11
ON
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 9  9
2 3 4
1