Symmetricom 5071A, Сборка и сервисное обслуживание

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1. Performance Tests – Verifying Specifications
5071A Operational Verification
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2 On the HP/Agilent 54600A Oscilloscope, press “Autoscale.”
(Use manual settings if needed to check the 1pps Outputs.)
3 Verify that the output signal waveform, frequency, and nominal
voltage correspond to the values listed in Chapter 6,
“Specifications,” for the signal under test.
4 Repeat steps 1 through 4 for all outputs.
5 Mark Pass or Fail on the Performance Test Record, line 2.
RS-232 Serial Port Verification
1 Ensure that the correct hardware connections exist between the
5071A and your terminal, personal computer, or workstation for
your remote operation needs as shown in Figure 1-2.
2 Ensure that the 5071A and your data communications equipment
(terminal) are powered-up and have passed their own self-tests.
3 On your terminal, press the “Enter” or “Return” key several times.
4 Observe the returned scpi> or E-xxx> prompt on the terminal
screen.
if the above prompt appears, the RS-232 Verification check passed .
If the prompt does not appear:
•
Check and verify all serial port parameters: baud rate, data bits,
stop bits, and parity.
•
Check and verify the hardware connections and cabling for correct
DTE-DCE signal paths. (Serial-port pin assignments are shown on
page 4-2 of the Operating and Programming manual.)
•
Check and verify all cables and connections for open or shorted
lines.
5 Mark Pass or Fail on the Performance Test Record, line 3.