User's Manual Part 1

Node B Rack Mount Installation Guide
Version 0.0.3 Page 11 of 39
The Digital shelf has the following interfaces on the front
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Mains DC supply
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Shelf interfaces to RF Shelf
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IUB Interfaces – Ethernet, E1, T1, E3 or T3
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Alarm Interfaces – input & output
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Status - 7 Segment Display
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Status – LEDs
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LMT & Debug ports
On the rear the earth point and access to the fans.
Figure 5-4 : Digital Shelf Faceplate