Quick Start Guide
Phase Matrix PXI-1440 IF Downconverter Module
21
STATUS LED
This LED indicates the overall health of the
PXI-1440. This includes the power supplies and other hardware.
The PXI-1440 has extensive built-in-test (BIT). Additional insight can
be learned by reading the status section of the Soft Front Panel.
The STATUS LED can have four possible conditions:
•
Green
indicates that all power supplies are functioning within their
tolerances and all hardware is functioning.
•
Amber
indicates that all power supplies are functioning within their
tolerances, but there is a hardware failure or no reference clock is present.
•
Red
indicates a failure in the power supplies and module hardware.
This can be a catastrophic failure.
•
Off
indicates a failure in the power supplies, but module hardware
seems to be functioning. Module hardware functioning indication
can be erroneous in this mode since this circuitry can be
compromised by a power supply failure.
ACCESS LED
This Solid AMBER LED blinks to indicate each
time the module is written to or read from.
IF OUT
SMB (m) connector is used to deliver an IF output signal out
of the front panel. The IF output signal is supplied through either the
IF A IN or IF B IN connectors.
IF A IN
SMB (m) connector is used to supply an IF input signal.
The IF input signal can be supplied by the PXI-1430
RF Downconverter Module and output by the PXI-1440
IF Downconverter Module one of two ways:
•
(bypass mode) directly to the IF OUT connector, in a range of
100 kHz to 425 MHz which bypasses the
filtering/mixing/amplification circuitry.
•
(filtered/mixed/amplified) through filtering/mixing/amplification
circuitry to produce a 250 MHz IF output signal.
IF B IN
SMB (m) connector is used to supply an IF input signal.
The IF input signal can be supplied by the PXI-1420
MW Downconverter Module and output by the PXI-1440
IF Downconverter Module one of two ways:
•
(bypass mode) directly to the IF OUT connector, in a range of
100 kHz to 425 MHz which bypasses the
filtering/mixing/amplification circuitry.
•
(filtered/mixed/amplified) through filtering/mixing/amplification
circuitry to produce a 250 MHz IF output signal.