Enterasys 9f106-02 User Guide
Operation
3-2
System Management Bus
There are two management channels within the MMAC-Plus system: the SMB-1
and the SMB-10. These buses provide out-of-band management and inter-module
management communication. The 9F106-02 uses only the SMB-1 bus.
and the SMB-10. These buses provide out-of-band management and inter-module
management communication. The 9F106-02 uses only the SMB-1 bus.
The SMB-1 is a 1 Mbps management bus located within the MMAC-Plus. This bus
is utilized by all diagnostic controllers in the system including connectivity
modules, power supply modules and the environmental module. The SMB-1
transports inter-chassis information between system components, such as power
and environmental information, as well as diagnostic messages.
is utilized by all diagnostic controllers in the system including connectivity
modules, power supply modules and the environmental module. The SMB-1
transports inter-chassis information between system components, such as power
and environmental information, as well as diagnostic messages.
System Diagnostic Controller
This diagnostic controller is composed of a Z-80 microprocessor and its
supporting logic. The diagnostic controller is designed to control the power-up
sequencing of modules, monitor the 9F106-02 input and output parameters, as
well as monitor the temperature, and control the SMB LANVIEW LED. The
diagnostic controller on the 9F106-02 is also responsible for reporting the FNB and
front panel connectivity status to network management. The information
gathered by the diagnostic controller is available to the network manager via
local/remote management and the LCD located on the Environmental Module.
The 9F106-02 has been designed so that in the event of a diagnostic controller
fault, the 9F106-02 will continue to function.
supporting logic. The diagnostic controller is designed to control the power-up
sequencing of modules, monitor the 9F106-02 input and output parameters, as
well as monitor the temperature, and control the SMB LANVIEW LED. The
diagnostic controller on the 9F106-02 is also responsible for reporting the FNB and
front panel connectivity status to network management. The information
gathered by the diagnostic controller is available to the network manager via
local/remote management and the LCD located on the Environmental Module.
The 9F106-02 has been designed so that in the event of a diagnostic controller
fault, the 9F106-02 will continue to function.
DC/DC Converter
The DC/DC converter converts the 48 VDC on the system power bus to the
necessary operating voltages for its host network services module. The diagnostic
controller controls the operation of the DC/DC converter.
necessary operating voltages for its host network services module. The diagnostic
controller controls the operation of the DC/DC converter.
FNB Interface
MMAC-Plus modules are designed with one of two attachment policies. One
allows a module to dual attach to either FNB-1 or FNB-2; the second allows dual
attachment to both FNB-1 and FNB-2. The 9F106-02 has dual attachment to the
FNB backplane, connecting to both FNB-1 and FNB-2. The module can insert into
the FNB or bypass it. These flexible configuration options make the MMAC-Plus
ideal for networks designed to Bridge/Route multiple lower speed LANs to FDDI
and/or networks designed using an FDDI collapsed backbone.
allows a module to dual attach to either FNB-1 or FNB-2; the second allows dual
attachment to both FNB-1 and FNB-2. The 9F106-02 has dual attachment to the
FNB backplane, connecting to both FNB-1 and FNB-2. The module can insert into
the FNB or bypass it. These flexible configuration options make the MMAC-Plus
ideal for networks designed to Bridge/Route multiple lower speed LANs to FDDI
and/or networks designed using an FDDI collapsed backbone.