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Equipment
AN2016 Cabinet User Guide Rel 1.0 Standard May 1999
Access bandwidth manager shelf
The NT4K10 access bandwidth manager (ABM) shelf supports up to seven
copper-distribution shelves installed with wideband interface units providing
up to 672 VF lines (see Figure 2-22).
The ABM also performs bandwidth management at the DS0 level and routes
portions of the SONET payload to the copper-distribution shelves.
The ABM shelf is designed for full front access to the internally mounted
circuit packs. The layout of the ABM shelf includes slots for:
• side interconnect circuit packs (left and right)
• tributary interface circuit pack positions
• primary interface circuit pack positions
• secondary interface circuit pack positions
• access circuit pack positions
• control circuit pack positions
For detailed information regarding the ABM shelf and circuit pack
descriptions, reference Configuration and Equipment Description,
323-3001-100, in Description, Volume 2A.
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