INFICON STM-2 USB Thin Film Rate/Thickness Monitor - Manual (Page 23)

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STM-2 Operating Manual
2.2.2 External Oscillator
To use an optional external oscillator, the jumpers inside STM-2 must be
repositioned (see
section 2.3 ). The maximum BNC cable length connecting the
external oscillator and STM-2 is 22.9 m (75 ft.) (see Figure 2-2 ).
Figure 2-2 External oscillator
USB
USB
Cable
BNC Cable
Maximum Length
22.9 m (75 ft.)
Substrate
Source
Sensor
Jumpers set
for external oscillator
Oscillator
783-500-013
15.2 cm (6 in.)
BNC Cable