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Figure 3-2 Master and Slave hubs in stacking ALH-616ds.

Note: 1. To concern the convenience of the cross-wiring connection

between hubs, ALH-616ds provide 1 normal port (marked as "II)

and 1 cross-over port (marked as "X"). These 2 ports are wired

to each other by different wiring assignments.

2. The up-link port utilizes the first connection port with "X" sign.When

you connect to another hub by this uplink port, you

cannot simultaneously connect a PC to this port in which "II" sign

is marked . The reason being that if a PC is connected to it, the

physical signal in the cable will be corrupted.

• The built-in switches in slave hubs will be disabled automatically to avoid

data looping from multiple inter-connections of hubs, as shown in Figure

3-3.

Figure 3-3 Auto Data looping prevention in ALH-616ds.

3-2

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Acer ALH-616ds Manuale Utente Pagina 23