Allied Telesis SwitchBlade 4000 Series Switch Hardware Reference - Manual (Page 17)

Hardware Reference 17
C613-03060-00 REV H
Expansion Bays
• Two switch controller bays
• Eight line card bays
• Three power supply bays
• One fan tray bay (compatible with the AT-SB4152 fan tray)
Alarm Relays
• Two relays (Major and Minor) each located on the rear panel
• Normally open and normally closed contacts
• Software configurable for a range of environmental and operational
events
• Suitable for use with DC alarm circuits (12 V DC 1.0 A or 48 V DC 0.5 A)
• 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.
• 33MHz 64 bit PCI routing and control bus links are present on 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
Cable Management System
• Optional manager can be fitted to the fan tray front panel
• Cable manager supports up to four cable-management loops
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-SB4104 SwitchBlade 4 Slot Chassis
Dimensions
• Height: 400 mm 9U rack occupancy
• Width: 440 mm (excluding rack-mounting brackets). Suitable for 19
inch rack
• Depth: 345 mm
• Chassis 4 (AC) weight: 13 kg (empty chassis)
• Chassis 4 (DC) weight: 13 kg (empty chassis)
• Chassis 4 loaded weight: 23 kg to 45 kg (depending on the
configuration)