Allied Telesis SwitchBlade 4000 Series Switch Hardware Reference - Manual (Page 23)

Hardware Reference 23
C613-03060-00 REV H
AT-SB4215 Bandwidth Expander
The bandwidth expander card achieves the performance of the dual
controller configuration, without incurring the cost of a second controller
card.
The bandwidth expander card is used in controller slot B to utilise unused
internal ports, i.e. those ports that would normally be assigned to line
cards 5 to 8 on the 8 slot chassis. This achieves the same level of
performance as using two controller cards. It does not, however, provide
the redundancy obtained by the dual controller card configuration.
Weight
• 2.3 kg
Compatibility
• Can only be used in slot B of the SwitchBlade 4 card chassis (AT-SB4104)
Functionality
• Maximises the bandwidth available.
• Has no external ports, interfaces or LEDs
AT-SB4215
AT-SB4215
Bandwidth
Expander