Specifications

AT-TS12FS/ST, SC, SM

There are desktop and rackmount department concentrator chassis

available to hold from two to eight TurboStack hubs. Since the department

concentrator chassis connects hub modules across a backplane, a fully

populated department concentrator behaves as a single hub in the

network topology. This enables you to build and reconﬁgure networks

easily, efﬁciently and at minimum expense.

An AT-TS12FS series module repeats 10BASE-FL signals according to

IEEE 802.3 speciﬁcations. In an eight-slot department concentrator, up to

97 ports may be monitored (seven Slaves containing 12 10BASE-FL

station ports each and one Master containing 12 10BASE-FL station ports

and one AUI network port).

Note

The AUI network ports on multiple fiber hubs in an eight-slot department

concentrator can be used because they reside on the front panel of the hub

and are, therefore, not blocked by the backplane.

You can expand the number of ports by stacking multiple AT-TS12FS/ST,

SC, SM hubs through the backplane connector, making a single logical

hub.

Controllers The AT-TS12FS series of hubs use an ATI proprietary multi-port hub

controller to retime and regenerate signals and communicate with the

network management software. The port status for each of the ports is

indicated by an LED display.

AT-TS12FS/ST, SC, SM Port Configurations

Network Port As shown in Figures 14 through Figure16, the ﬁxed AUI port on the front

panel of each AT-TS12FS series hub may be used to connect a TurboStack

hub without management to the network in a standalone conﬁguration. In

a managed hub, the Master’s AUI port may be used for the network

connection. In a non-managed hub conﬁguration, if you are using a two- or

three-slot chassis, one AUI port is used for the network connection and the

remaining AUI port(s) can be used for station connections.

Different media connections can be accommodated through the use of an

ATI micro transceiver. For a list of the ATI micro transceivers available for

network connections, see Table 3 on page 19 of this manual.

Fiber Optic Ports As also shown in Figures 14 through Figure 16, each of the three

AT-TS12FS series hubs has 12 ﬁber optic ports. The only differences

among the three models is in the type of connector attachment.

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