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Omni 56K II and Omni 56K Plus II User’s Guide
Getting to Know Your Modem 1-1
Chapter 1
Getting To Know Your Modem
This chapter introduces you to the features and specifications for the ZyXEL Omni 56K II and
Omni 56K Plus II modems.
1.1 The Omni 56K II and Omni 56K Plus II Modem
The Omni 56K II and Omni 56K Plus II are analog Data/Fax/Voice modems used for Internet access via
telephone wire. The Omni 56K Plus II also supports a Universal Serial Bus (USB) connection to a computer.
Both modems can run upstream maximum rates of 48 kilobits per second (Kbps) and downstream rates of
56Kbps. The actual rate depends on the line quality, the distance to the exchange and server side
configuration.
1.2 Features of the Omni 56K II and Omni 56K Plus II Modem
ZyDAS Fifth Generation Data Pump with V.92 Capability
The Omni 56K II and Omni 56K Plus II modems provide the v.92 quick connect feature. This feature can
shorten the modem handshaking time and therefore reduces the wait time and associated dial-up cost for each
new connection.
V.92: 56K Down-stream and 48K Up-stream Data Transmission
The Omni 56K II and Omni 56K Plus II modems comply with the V.92 standard for data communications.
This means that your modem is able to communicate at 56K on data communications originating from your
service provider and at 48K on communications going to your service provider.
Microsoft Windows 95/98/2000/Me/XP: RS-232 Plug and Play Compatible
Your modem provides the convenience of simply being connected to the serial port on your computer. The
serial port is a dedicated communications port and allows for optimum data speeds between your computer
and modem.
Microsoft Windows 98/2000/Me/XP: USB Plug and Play Compatible (Omni 56K Plus
II)
The Omni 56K Plus II modem is fully compliant to the USB 1.1 standard. You can use the USB port to
install the Omni 56 Plus II without having to restart your computer.