THORLABS SA201-EC, Руководство по эксплуатации

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Spectrum Analyzer Controller Chapter 4: Description
Rev H, November 30, 2021 Page 9
Figure 4 SA201 Rear Panel Connections
4.11. Ground Plug
This ground plug is for use as a general-purpose ground connection. It is
connected directly to the earth ground connection of the input power plug.
4.12. AC Input Connector
This is the line voltage input connection. IMPORTANT: The unit is configured for
100/115 VAC, 50
–
60 Hz from the factory. To operate at 230 VAC see Section
5.3.
4.13. PD Amplifier Input BNC
This input BNC is used to interface the photodetector, provided with the SA200
scanning heads, to the amplifier circuit. The photodiode amplifier is configured to
operate with the Thorlabs supplied photodetectors; however it is possible to
operate user supplied photodetectors. To do so, the BNC center contact must be
connected to the photodetector cathode and the BNC shell must be connected to
the photodiode anode (unbiased operation). If a biased detector is to be used the
BNC shell must be connected to the bias ground and the bias voltage must be
negative for the circuit to operate properly.
Voltage Selector Switch
AC Input Connector
Ground Flag
PD Amplifier Output BNC
PD Amplifier Input BNC