Specifications

Overview

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.

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

In a department concentrator configuration, both the Master and the

Backup modules must have management capability.

❑ All hub modules between the Master or Backup and the AT-TS90TR

or AT-TS95TR 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 an

AT-TS90TR switch or an AT-TS95TR switch.

Note

The bottom slot of the 7-slot chassis may be left empty with no effect on the

operation of the individual Master, Backup, or Slave modules mounted in

the top six chassis slots. With no switch installed, however, there is no

communication among the units.

Note

Chassis equipped with fans have variable voltage settings—either 120V or

240V. When installing multiple ATI hubs in a chassis with power, setting

the chassis voltage switch too high (at 240V when 120V is required) will

cause overheating of the fans. Setting the voltage too low (at 120V when

240V is required) will reduce the effectiveness of the fans and thus cause

overheating of the installed repeater modules. Check the specific chassis

model to determine the correct voltage setting.

A variety of department concentrator chassis models is available for

TurboStack products. These include chassis with standard or segmented

backplanes. These chassis address a range of needs for different sized

networks and uses. Call your ATI sales representative for details.

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