Chapter 1
Overview
Front Panel Display Cell OL* LED
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Front Panel Display Cell OL* LED
The Front Panel board (FPB) is located on the front skins and is accessible to the user. It contains the power
ON/OFF switch, a decimal display for cabinet numbers between 0 and 15, and LED's for +5 V Power Good,
+48 V Power Good, MP Present, Remote, and Attention. Each cabinet contains one Front Panel board. This
assembly is not hot swappable.
The Cell OL* (HCOLB) unit is located on the front of the cabinet making its LEDs visible from the front of the
cabinet. It contains 16 LEDs, two for each cell board. This assembly is not hot swappable.
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