METRObility Optical Systems RADIANCE 10/100MBPS ACCESS OPTICAL NETWORK UNIT manual Overview

TheOverviewMetrobility Radiance 10/100Mbps Access Optical Network Unit (ONU) offers the benefits of remote management while eliminating the expenses associated an additional chassis and management card at the remote site. The compact Access ONU is a complete standalone device designed for installation at the customer premise, with no additional equipment. It supports 10Mbps and 100Mbps circuits, as well as auto-negotiation, ensuring compatibility with any customer equipment. The Access ONU provides real time monitoring of line quality, remote loopback and other WAN management features that allow a network administrator in the central office to conduct preemptive trend analysis and to isolate faults. Because problems are addressed locally without having to send a technician to the customer site, the results are reduced maintenance costs, greater efficiency, and faster response to customer requests.

Designed to operate with the ONU, a Radiance Access Line Card installed in the central office is used to communicate, test and reconfigure the remote Access ONU, without reducing the available bandwidth to the customer. This is accomplished through Metrobility’s innovative Radiance technology, which enables the Access Line Card and ONU to receive and transmit special manage- ment packets in an embedded side channel.

The Access Line Card and ONU continually exchange information in a master/ slave relationship through their fiber link. The Access Line Card serves as the master, and the ONU as the slave. The master must reside in a chassis contain- ing a Metrobility management card. The management card is accessible through local software control via an SNMP agent such as Metrobility’s NetBeacon™ , via HTTP with WebBeacon™ , or via a serial port or telnet connection using the command line interface. The ONU can be located up to 100km away and be remotely controlled and accessed from the managed chassis.

Through NetBeacon, a network administrator in a central office can open a dialog with the Access ONU and reset its hardware switch settings, monitor its environmental parameters, or view port details and statistics. NetBeacon provides extensive real-time and historical graphs to display information such as the packet error rate and packet details. The administrator can also perform tests on the remote link, without any bandwidth reduction, and isolate problems to prevent downtime. This end-to-end visibility and testing of the network simpli- fies network management and increases reliability.

The Access ONU performs various operations set through hardware switches or remote management instructions. Among these functions are loopback and Far End Fault (FEF). Loopback enables a port to return its incoming data back to

4 Overview