ZyXEL Communications ONU-2024 Series, Руководство пользователя

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ONU User’s Guide
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H A P T E R
1
Getting to Know Your Device
1.1 Introduction
This chapter introduces the main features and applications of the ONU.
An Optical Network Unit (ONU) is a fiber optic modem that allows very high-speed Internet
access over a passive optical network (PON). It extends fiber optic cables from the service
provider to the premises, such as an office building or residence, and requires no additional
power to maintain between the origin and end points.
This device is a stand-alone layer-2 Ethernet switch with 24 10/100Mbps ports, one Gigabit
Ethernet/mini-GBIC port and one GEPON uplink port.
With its built-in web configurator, managing and configuring the ONU is easy. In addition, it
can also be managed via Telnet, SSH (Secure SHell), any terminal emulator program on the
console port, or third-party SNMP management.
See Appendix A on page 237 for a full list of software features available on the ONU.
1.1.1 Backbone Application
The ONU is an ideal solution for small networks where rapid growth can be expected in the
near future. It can be used standalone for a group of heavy traffic users. You can connect
computers and servers directly to the devices’s port or connect other switches to it.
In this example, all computers can share high-speed applications on the server. To expand the
network, simply add more networking devices such as switches, routers, computers, print
servers etc.
Figure 1 Backbone Application