Hp NonStop G-Series Manual do Utilizador descarregar pdf (Página 51)

Switch Modules

ServerNet Nomadic Disk User’s Guide—425485-001

4-7

Switch Card

Switch cards, which occupy slots 1 through 8 of a switch module, control the path of

fiber-optic signals between the 45xx disk modules and one of two nodes. A switch card

has two positions: straight and crossed. A switch module connects to two nodes; either

node can control the disk modules depending on the position as indicated by the switch

cards. Each switch card connects to two ServerNet/DAs and to a 45xx disk module. To

ensure that all ServerNet/DAs are accessible, each switch module contains at least two

switch cards.

A switch card has these components:

•

Switch Card Toggle Switches on page 4-8

•

Switch Card LEDs on page 4-9

Faceplate of a Switch Card

3131

Toggle Switch

Fault LED

Switch Indicator:

Crossed Position

MIC MMF Connector

Switch Indicator:

Straight-Through Position

VST006.vsd

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Hp NonStop G-Series Manual do Utilizador Página 51