12713020-002-2 Revision D – April 2004 SSU-2000 User’s Guide 167
Input Module Reference Data
Composite Clock Input Module
Status LED Indicators
The CC Input module is equipped with four status LEDs as shown in Figure 7-8. The
LED status assignments are described in Table 7-9.
Figure 7-8. Front Panel of the Composite Clock Input Module
Table 7-11. Composite Clock Input Module Status LED Indicators
Indicator Color Description
POWER Green On = The module is receiving +5 vDC
STATUS Green/Amber Green = Unit is in Normal mode of operation; no faults
Amber = Fault condition detected
Blinking = Disabled or firmware upgrade in progress
REF Green On = Selected as the input reference
Off = Not selected as input reference
INPUT Green/Amber On (Green) = Valid reference is connected
On (Amber) = Internal port fault
Blinking (Amber) = External port fault (LOS, BPV density)
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