Care should be taken when doing these measurements to avoid touching any exposed terminals. If the IRIG-B signal being measured exceeds 48V (AC or DC), then a High Voltage symbol will be displayed at the top of the screen as in Figure 10 below.
IRIG-B signal. 8 MEASURING FIBER IRIG-B SIGNALS SC Fiber Cable 1. Remove the protective plug from top of IRIG-B analyzer to expose the SC fiber socket as per Figure 14 below. Figure 14: SC Fiber socket with protective plug removed 2.
Figure 22: The About screen 10 HELP SCREEN The IRIG-B Analyzer Help screen can be accessed from the Menu screen and gives a brief help on the following topics. Stuck On Home Help Screen...
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This is where the IRIG-B Analyzer is not detecting a valid IRIG-B signal when on the Home screen. Refer to the Troubleshooting section below for possible causes. Year Not Present Help Screens Figure 24: Year Not Present-Help Screens-1 & 2 This may be encountered when the IRIG-B signal is from a Clock conforming to earlier IRIG standards.
Figure 27: Polarity Inverted- Help Screens 1, 2, 3 & 4 This help screen prompts the user to check the probes are connected to the IRIG-B signal with the correct polarity and explains why RS-232 IRIG-B normally is reported as inverted.
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