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