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ACE1553-3U-4 Hardware Manual
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Rear Connector XJ3: High-Speed Advanced Differential Fabric (ADF) connector
(30 contact pairs, 30 ground contacts, female connector) for PCIe connection
Rear Connector XJ4: shielded 5-row by 8-column (40 pins) Hard Metric (eHM)
female connector for
power supply rails
(+3.3V, +12V) and for PXI bus
capabilities
Front Connectors:
2x 15-pin HD-DSUB connector for the MIL-Bus Signals, IRIG I/O, GPIO
and external Triggers
MIL-Bus:
MIL-STD-1553 isolated, transformer or direct coupled stub connections.
Emulates a 70 Ω transformer-coupled network stub if programmed accordingly.
Trigger In:
TTL compatible Input Level, 10K
Pull Up resistor and high speed EMV
varistor.
Rising Edge sensitive, Pulse-width > 75 ns
Trigger Out:
Output with TTL Level; with high speed EMV varistor,
High Pulsewidth strobe, 500 ns duration.
PXI Trigger Bus / STAR / Clock:
All PXI Inputs are TTL Level compatible
Active LOW (falling edge) Trigger Input (also Star) and Trigger Outputs
Pulse-width multiple of 100ns
IRIG-IN:
AC-coupled Input resistor ~ 10K
, with high speed EMV varistor.
0.5 to 5.0 Vpp input voltage
IRIG-OUT:
AC-coupled Output resistor ~ 51
, with high speed EMV varistor.
~ 3 Vpp output voltage
Summary of Contents for ACE1553-3U-4
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