Acoustic Coupler Modem


Acoustic Coupler modem
Different from previous types.

Used with standard telephone 

receiver
Receiver is placed into cups built into

 the modem

Used to convert sound ç è 

electrical signals












Access points

Special nodes on WLAN

Act as transmitter and receiver

Usually are smaller dedicated 

having built in network adapter , 

antenna and receiver





Hub

Join computers and devices.

Support Ethernet standards.

Also available in USB.

10/100 mbps

4,5 and 8,16 ports available






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