SC5 Signal Conversion Instrument Overview
13
Rear panel
Figure 3: SC5 rear panel.
4. Power switch: Turns the SC5 on and off.
5. Fuse holder: Contains two identical slow blowing fuses, each one connected to line and neutral of the power
supply transformer. Slow blowing 2A fuses (2AT, rated 250 VAC, 5×20 mm) should be used regardless of the
line voltage.
6. IEC power socket.
7. GND BNC connector: The shield of this connector is connected to protection earth (PE), and therefore also to
the SC5 chassis. The inner conductor is connected to the GND reference of the analog electronics (AGND). See
the Electrical ground section for details.
8. Status LEDs (green): Indicate that the positive and negative rails of the auxiliary power supply are providing
the correct voltages (+15 V and -15 V respectively), and are not overloaded. If the external device connected to
the auxiliary power supply connector (9) is drawing too much current (more than 300 mA per rail), the LED of
the overloaded rail will start flashing with a frequency of 5-10 Hz. See the Auxiliary Power Supply section for
details.
9. Auxiliary power supply connector: This connector supplies ±15 V with a maximum current of 300 mA per
rail. It can be used to power external devices like preamplifiers. See the Auxiliary Power Supply section for
details.
10. FAST AO: This BNC plug provides an additional analog output with a bandwidth of 1 MHz (-3dB). It can
deliver voltages up to ±10 V and currents up to ±20 mA. The shield of the BNC connector is connected to
AGND. For more details, please refer to the Fast Analog Output section.
11. DEVICE SC 01/02/03: This connector is used for the communication between the SC5 and the Nanonis RC5.
The cable for the connection between the two instruments is provided with the SC5.
Symbols:
Earth
Protection Earth
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