Node Slots; Rear Transition Modules; Power Inlet Modules; Ac Power Supply Unit And Dc Power Entry Modules - Emerson Centellis 2000 Shelf Release 3.0 Manual

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System Overview

1.1.4

Node Slots

The backplane in a Centellis 2000 Shelf Release 3.0 shelf provides two node slots, oriented

horizontally in the lower and upper part of the shelf. They are accessible from the front of the

shelf.

1.1.5

The node slots can be connected to rear transition modules (RTM) to provide easy access to I/O

signals through the zone 3 connector defined by the AdvancedTCA specification.

The Emerson RTMs can be used as rear expansion boards for node blades to access the different

interfaces on an AdvancedTCA blade through the RTM face plate.

1.1.6

The power inlet building block supports redundant power connection to the shelf from the

rear. It routes the power paths individually to two high current connectors which mate directly

with the front installed AC power supply/ DC power entry module. The power inlet is a fixed,

non-field replaceable unit.

1.1.7

The Centellis 2000 supports up to two redundant AC power supplies, or up to two field hot-

swappable DC PEMs with a 30 A breaker with line filtering.

1.1.8

The system provides fault-tolerant cooling by using two hot-swappable intelligent fan trays,

one accessible from the front and one from the rear. Each fan tray contains two fans which are

speed-controlled by the shelf manager.

1.1.9

The air filters are installed inside the front fan tray slot. They ensure that the shelf operates

efficiently and therefore regular maintenance/replacement is required.

Centellis 2000 Shelf Release 3.0 Installation and Use (6806800L99F)

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