Allied-telesis SwitchBlade 4000 Series Switch Hardware Reference Manuel d'utilisateur télécharger pdf (Page 19)

Hardware Reference 19

C613-03060-00 REV H

Mounting System

• 19 inch rack mounting

• Front rack-mounting brackets incorporated in chassis. Mid or rear

mounting brackets optional

Expansion Bays

• Two switch controller bays

•Four line card bays

• Two power supply bays

• One fan tray bay (compatible with the AT-SB4151 fan tray)

Alarm Relays

• Two relays on rear panel

• Normally open and normally closed contacts

• Software configurable for a range of conditions

• See “Alarm Relays and Monitoring” on page 32 for more information

Backplane Links and Bus Connections

• A SwitchBlade chassis contains two controller bays each capable of

housing a switch controller card. See “Switching Performance and

Characteristics” on page 10 for more information.

• 33 MHz 64 bit PCI routing and control bus links all switch controller

and line card bays. This bus provides a high performance

communication channel between switch controller CPUs, and also

allows high speed routing between line cards that have WAN

interfaces.

Earth/Ground Point

• An earth/ground point is provided on the chassis’s rear panel. This

point can be used to bond the chassis to earth/ground. Even if this point

is used, earth/ground leads of AC and DC power supplies must still be

connected.

AT-SB4161 & 2 SwitchBlade Power Supply Units

For guidelines on how many PSUs are required for a particular configuration,

see “How Many PSUs do You Need?” on page 33.

LEDs

• Three LEDs indicate power supply status (input, output, and fan status)

• For a complete list of LEDs and their functions, see “LEDs and What

They Mean” on page 47

Power Supply Specifications

Weight

• 3.6 kg

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Allied-telesis SwitchBlade 4000 Series Switch Hardware Reference Manuel d'utilisateur Page 19