Power Consumption; Shelf Ground Configuration; Backplane; Functional Layout - Emerson AXP1620 Installation And Use Manual

AXP1620 Shelf Description
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Power Consumption

The following table shows the total power requirements for the shelf. Power consumption
breakdown is shown in the next table.

Table 2-1 AXP1620 Shelf Power Requirements

Amps per Fan
AXP1620 Shelf without
AdvancedTCA Blades

Shelf Ground Configuration

The AXP1620 shelf was tested in the default configuration of logic ground and shelf ground
connected and does not connect -48VDC Return with Shelf Ground. The Centellis 4620
platform has been tested in the default configuration and complies with safety and regulatory
standards.
As a compliant AdvancedTCA shelf, the AXP1620 allows system integrators, at their own
discretion, to remove the mechanism which connects Logic Ground to Shelf Ground and install
the mechanism that connects -48VDC Return to Shelf Ground. If the system integrator
exercises the option of removing the connections from Logic Ground to Shelf Ground and or
adds the connection between -48VDC Return and Shelf Ground, the responsibility for
maintaining compliance to CSA (C/US)/VDE safety requirements and EMI/RFI emission limits
rests entirely with the system integrator and installer.

Backplane

The shelf backplane supports 2 hub slots, 14 node slots, and two SAMs. This AdvancedTCA
backplane provides the IPMB and I
AdvancedTCA blades and the other FRUs. The backplane provides signal routing for fail-over
signals between active SAM and standby SAM. The power connectors for the power entry
modules are located on the backplane. The backplane is not a Field Replaceable Unit (FRU).

Functional Layout

The backplane provides dual star base interface and dual star fabric interface connections at
each blade slot with segmented power (five power segments) provided by the dual Power Entry
Modules (PEMs).
Maximum Total Watts
850 Watts (assumes the shelf is configured with 2 SAMs, 2
PEMs, and all FTMs running at full speed.
2
C bus interface signals from the shelf manager to all
AXP1620 Installation and Use (6806800E23E)
Power Consumption