Clock Module Reference Data
Communications Module
138 SSU-2000 User’s Guide 12713020-002-2 Revision D – April 2004
Status LED Indicators
The Communications module contains a group of eight status LED indicators that
convey visual status to the user, as shown in Figure 6-8 and described in Table 6-7.
Figure 6-8. Front Panel of the Communications Module
Table 6-7. Communications Module Status LED Indicators
Indicator Color Description
Power Green On = The module is receiving power
Off = No Power Present
Status Green/Amber On (Green) = No faults detected
On (Amber) Blinking = Module is downloading firmware
On (Amber) = Module fault detected
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