VPSB-DC and VPSB-DC-E
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Ready LED
This LED is lit as soon as the FPGA program is loaded and the sensor interfaces are active
Power LED
An active Power LED indicates that the VPSB-DC(-E) is correctly powered
VT PWR 1
This LED is lit whenever the output power on the connector VTA1 is enabled
VT PWR 2
This LED is lit whenever the output power on the connector VTA2 is enabled
VTA 1 LED
Whenever a VTA is connected to the connector labeled VTA 1 and initialized correctly, the
LED will be switched on
VTA 2 LED
Whenever a VTA or BSCU is connected to the connector labeled VTA 2 and initialized
correctly, the LED will be switched on
AUX 1 LED
Whenever a VTA is connected to the connector labeled AUX 1 and initialized correctly, the
LED will be switched on
AUX 2 LED
Whenever a VTA or BSCU is connected to the connector labeled AUX 2 and initialized
correctly, the LED will be switched on
Connectors
Label Description Note
VTA 1 For VTA adapters that are used for power
channels (e.g. probe heater, LN2 accessory)
VTA 1 will be mapped to regulator channel 1
in Topspin
a
VTA 2 VTA 2 will be mapped to regulator channel 2
in Topspin
AUX 1 For VTA adapters that do not require heater
power (e.g. BCU control)
AUX 1 will be mapped to auxiliary channel 1
in Topspin
b
AUX 2 AUX 2 will be mapped to auxiliary channel 2
in Topspin
a
If a 2nd VPSB-DC(-E) is in use then its VTA 1 will be mapped to regulator channel 3 and VTA 2 to
regulator channel 4 respectively.
b
If a 2nd VPSB-DC(-E) is in use then the device at AUX 1 will be mapped to auxiliary channel 3 and
AUX 2 to auxiliary channel 4 respectively.
Table15.8: VPSB-DC(-E) Front Panel Connectors
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General