Rear Panel Connectors
Lynx II DSA User's Manual – 7096089 21
PREAMP PWR
Supplies DC power to a preamp; supports NAID thermistor monitoring. This is a DB9
female connector with a bail to secure the special Preamp cable.
LED Status
This section describes the Lynx II’s rear panel LED indicators. For more information,
refer to Specifications on page 135.
HV
A multicolor LED indicates the state of the selected high voltage power supply, or in some
cases, relates to any of the high voltage power supply outputs.
• Off – High voltage supply is off. All HVPS Outputs are off. Please be aware that
after switching the power supply off, a dangerous residual voltage can still exist for
some time on the rear panel’s SHV connectors until the internal capacitances
within the device are fully discharged.
• Steady On Green – Any High voltage supply is ON and has reached its
programmed voltage.
• Steady On Red - An error, such as an HVPS fault has occurred (e.g., Inhibit has
tripped, etc.). This 'error' condition may be cleared by the User once the cause of the
error has been acknowledged (i.e., a known limiter was tripped) and the condition
no longer exists.
ACQUIRE
A green LED to reflect the status of the acquisition. Steady on when a setup on the
instrument is either acquiring or waiting to acquire PHA or MCS data. Off indicates
neither acquisition is in process.
ICR
A green LED for Incoming Count Rate. Illuminates each time the instrument processes an
incoming signal. The intensity of the LED is proportional to the incoming count rate.
COMM
A green LED for Communications. Illuminates each time the instrument has received a
command over any supported communications interface.
POWER
A multicolor LED showing instrument status and presence of system power. The different
LED states may be observed during or after the power-up self-test.
• Blinking Green – Instrument is powered on and in the process of initialization.
• Steady Green – Instrument is powered on and ready for operation.
• Steady Red – Signals a self-diagnostic error. The reason for the error can be
confirmed through the appropriate control software (Genie 2000 or the web
interface). If the Lynx II web interface is operational, the cause can be determined
through the Diagnostic option in the Maintenance section of the user interface.
• LED is Off – Instrument is not receiving power.
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