HP E1563A User Manual page 16

16 Digitizer Module Set-up
HP E1563A Front Panel Indicators
The "Failed" LED illuminates momentarily during the digitizer's
power-on boot.
The "Access" LED illuminates only when the backplane is
communicating with the digitizer.
The "Errors" LED illuminates only when an error is present in the
digitizer's driver error queue. The error can result from improperly
executing a command or the digitizer being unable to pass self-test
or calibration. Use the SYST:ERR? command repeatedly to read and
clear the error queue (or use *CLS to clear the error queue without
reading errors). A response of +0,"No error" indicates the error
queue is empty. See Appendix B, HP E1563A and E1564A Digitizer
Error Messages, for a list of all errors.
The "Sample" LED illuminates while the digitizer samples the input for
a measurement. The "Sample" indicator typically will blink for slow
sample rates and is on steady-state for high sample rates.
HP E1563A Input Terminals
The HP E1563A Digitizer's front panel contains two Switchcraft®
EN3™ Mini Weathertight Connectors (female). Mating Switchcraft®
Cord Connectors (male) are supplied with the module and the user
must provide the cable and assemble the connector to the cable end.
Shielded twisted pair cable is recommended with some recommend-
ations shown in the following table that have an outside dimension
compatible with the cord connector.
Wire gauge
20 AWG (7x28)
22 AWG (7x30)
24 AWG (7x32)
HP E1563A D-subminiature Connector Pins
The front panel contains a 9-pin D-subminiature connector with the
following pin-out and associated SCPI commands (do not make any
connections to the top two pins):
SAMPle:SOURce EXT
Belden® cable P/N
8762
9462
8641
Alpha® cable P/N
none
5481C
5491C
TRIGger:SOURce EXT
ROSCillator:SOURce EXT