TRAK MODEL 9100 MODULAR FREQUENCY/TIME SYSTEM
3-3
TM4400013 Rev D
3-2.2 Digital Distribution Module
The Model 9106 (DDM) front panel shown in Figure 3-3 contains a FAULT indicator and four output test points.
The FAULT illuminates when one or more of the four outputs fail. The FAULT indication is latched until cleared
by “FAULT RESET” switch on the front panel of the FSU. The output test points allow monitoring of selected
outputs from the front panel.
Figure 3-3. Model 9106 Digital Distribution Module (DDM)
OUT A
OUT B
OUT C
OUT D
FAULT
TRAK
SYSTEMS
DDM
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