Overview
6
In the seven-slot department concentrator shown in Figure 2, up to 90
ports can be monitored:
❑
One Master containing
eight
10BASE2 station ports
❑
Two hubs with management containing a total of
twelve
(RJ-21)
10BASE-T station ports, t
wenty-four
(RJ-45) station ports, and
two
AUI ports
❑
Two hubs with management containing a total of
six
(SC)
10BASE-FL station ports,
twelve
(ST) 10BASE-FL station ports,
and
two
AUI ports
❑
One Slave hub containing t
wenty-four
RJ45 station ports for UTP
(The AUI port is not available because of its backplane location).
Note
Depending on the model used, the AUI network port on some slave modules
cannot be used in a seven-slot department concentrator because they
reside on the back panel of the repeater and are blocked by the backplane.
You can mount all or any combination of TurboStack hubs in the same
department concentrator chassis. Once installed, the AT-S10 network
management software views the concentrator as a single logical device.
Note
If you have configured your chassis with both AT-3600 Series modules and
TurboStack modules, you will need to download all units with AT-S4
firmware. All modules in the department concentrator will then function as
AT-3600 hubs and the TurboStack security features will be disabled.
Module
Functions
In the department concentrator configuration, the modules perform
different functions:
❑
The top module becomes the
Master
. It downloads software to and
serves as the reporting unit for other units in the concentrator. It
also controls the management functions.
❑
The module in the slot directly below the Master becomes the
Backup
. It assumes management functions if the Master is
removed.
Note
Both the Master and the Backup modules must have management
capability.
❑
All hub modules between the Master or Backup and the switch in
the bottom chassis slot function as
Slaves
. They report
management information to the Master but do not perform any
control functions.
❑
The bottom slot of the 7-slot chassis may be occupied by either the
AT-TS90TR switch or the AT-TS95TR switch.
Note
The bottom slot of the 7-slot chassis may be left empty. If there is no switch
in the bottom slot, however, there will be no communication between the
installed units.
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