Cisco ONS 15600 Manual de referência - Página 13

Procurar online ou descarregar pdf Manual de referência para Servidor Cisco ONS 15600. Cisco ONS 15600 22 páginas. Install the bay and backplane connections
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Chapter 1 Shelf and Backplane Hardware

1.8 Power Distribution Unit

The PDU consists of a mounting chassis, A- and B-side power modules, an alarm module, and a rear I/O

unit. The ONS 15600 PDU has LEDs that alert you to Critical, Major, Minor, and remote alarms on the

node. Each module can support three 100A input power feeds, 48 VDC power load (based on a fully

loaded ONS 15600 shelf). The PDU supplies six 50A power feeds to the shelves. (The PDU provided

with the ONS 15600 is capable of supplying power to up to three shelves.)

A three-shelf bay at the minimum operational voltage of –36 VDC requires 69-A per feed (207 A total).

A three-shelf bay at the nominal operational voltage of –48 VDC requires 52-A per feed (156 A total).

Each of the three feeds should be protected by its own 100-A breaker. A bus bar system, rather than

wiring, provides a reliable, low resistance path to the ONS 15600 shelf.

the PDU output covers found at the top rear of the bay.

Note

Cisco supports only one ONS 15600 shelf per bay.

Ground the equipment according to Telcordia standards or local practices. The ground connection is

located on the front of the bay's top horizontal rails. The ONS 15600 provides two #12 tapped holes to

accommodate the grounding lug. The lug must be a dual-hole type and rated for at least 125-A capacity.

Figure 1-11

shows the front and rear bay ground holes.

1.8 Power Distribution Unit

Figure 1-6 on page 1-6

Cisco ONS 15600 Reference Manual, R8.0

shows

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