Incoming Inspection Test
ST2400A SDH Test Set User Manual
B-17
Inject LOS Alarm
In this part, the transmitter injects a loss of signal alarm and you verify the responses of the receiver.
There are eight steps in this section of the procedure.
1.
On the transmitter side of the front panel, press ALARM until the display shows the Inject LOS
menu.
2.
Using the LEFT/RIGHT cursors, select ENABLE and then press ENTER.
3.
In the 2.4Gb/s STATUS section, observe that the LOS, LOF, OOF, B1, B2, and REI/FEBE LEDs
flash on and off continuously every 2.5 seconds.
4.
Using the LEFT/RIGHT cursors, select OFF and then press ENTER.
5.
In the 2.4Gb/s STATUS section, observe that all of the error lights now remain off.
6.
On the front panel, press RUN/STOP twice to clear all errors.
You have now successfully verified that the unit is functional. If you had any problems with the unit while
performing the tests, repeat the procedure paying careful attention to the setup of the units and the
directions given. If the unit still has a problem, please call Tektronix Customer Sales and Support Center
(CSSC) at 1-800-835-9433 x2400 or 503-627-2400 for assistance.
Summary of Contents for ST2400A
Page 7: ...ST2400A SDH Test Set User Manual vii Index I 1...
Page 12: ...General Safety Summary xii ST2400A SDH Test Set User Manual...
Page 13: ...Getting Started...
Page 14: ......
Page 24: ...Operating Basics...
Page 25: ......
Page 44: ...Reference...
Page 45: ......
Page 94: ...Reference ST2400A SDH Test Set User Manual 3 49...
Page 95: ...Appendices...
Page 96: ......
Page 113: ...Specifications SDH ST2400A SDH Test Set User Manual A 17...
Page 134: ...Factory Defaults C 4 ST2400A SDH Test Set User Manual...