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Circuit Pack Descriptions
7-10 Issue 3 June 2001
BBG9 OHCTL Circuit Pack Description 7
Purpose of Circuit 7
The overhead controller (OHCTL) circuit pack is used in conjunction with the
DDM-2000 OC-3 BBG8/BBG8B system controller (SYSCTL). It provides
overhead channel interfaces for the system.
Faceplate Indicator 7
The OHCTL circuit pack faceplate indicator is shown in Figure 7-4. The red
FAULT LED lights on detection of circuit pack failure. The red FAULT LED flashes
in the event of a SONET DCC failure.