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Advanced features, Metro ethernet access – Omnitron Systems Technology iConverter GX/TM2 User Manual

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Fiber Port Options
GX/TM2 models with fixed-fiber connectors are available with

multimode (MM) dual fiber, single-mode (SM) dual fiber and

single-mode single-fiber (SF) options. They support ST, SC

and LC connectors with distances up to 550m over MM fiber,

140km over SM fiber and 40km over SF. The GX/TM2 Small

Form Pluggable (SFP) model supports a wide variety of SFP

transceivers available in 20nm increments from 1270nm to

1610nm to support FTTX and CWDM applications.
Link Modes
The GX/TM2 features multiple, user-selectable link fault

detection modes, including Link Fault Propagation, Remote

Fault Detection and Asymmetrical Fault Detection. These Link

Modes provide rapid fault detection and isolation by monitoring

the state of the cabling hardware, and operate independently

of the network management.
Tag VLAN, Port VLAN and QoS
The iConverter GX/TM2 supports the IEEE 802.1Q tag Virtual

Local Area Network (VLAN) packet tagging and untagging

(including Q-in-Q) and the 802.1p Quality of Service priority

standards.
GX/TM2 VLAN 802.1ad tunneling technology enables service

providers to offer their customers E-Line and E-LAN services

(via Ethernet Virtual Circuit or EVC), which connect multiple

business LANs at different locations and make their networks

appear to be on the same local network. Q-in-Q Service tags

transparently transport customer network traffic across the

service provider network, isolating it from other customer and

service provider management traffic.
GX/TM2 Port VLAN enables the ability to specify and restrict

traffic flow between the fiber, UTP, backplane and management

ports.
The 802.1p prioritization standard enables delivery of Quality

of Service (QoS) to high-priority, real-time applications such

as voice and video over Ethernet.
Port Bandwidth Control and Port Access Control
The enhanced Bandwidth Control feature supports levels of

bandwidth limiting between the fiber and UTP ports in 64Kbps

increments from 64K to Full Line Speed.
The GX/TM2 features Port Access Control which blocks user

service while maintaining the network link. Port Access Control

enables the service provider to control user access while

maintaining port configuration for easy disabling or enabling

of customer service. Port Access Control provides enterprise

administrators the capability to improve network security by

controlling port access when the port is not in use.
Port Statistics and Optical Performance Statistics
The GX/TM2 supports reporting of utilization, port and optical

performance statistics. Port statistics are available for 38

different variables for the UTP and fiber ports. Additionally,

full optical performance statistics are available on SFP fiber

transceivers with a digital diagnostic bus.

Port and optical performance statistics reporting provides

the ability to monitor customer bandwidth utilization, network

performance and the link signal quality for each individual port.
IEEE 802.3ah Operations, Administration and Maintenance
The GX/TM2 supports the IEEE 802.3ah OAM standard,

including Fault Detection, Performance Monitoring and Remote

Loopback.
Fault Detection
The GX/TM2 detects and indicates link failures, dying gasp and

other critical events. The GX/TM2 also supports Unidirectional

Link Fault Detection that indicates faults in either direction of

the fiber link.
Performance Monitoring
802.3ah Performance Monitoring tools are used for the

detection and notification of link performance (quality) faults.

Ethernet data performance can deteriorate slowly before

disrupting service, and the GX/TM2 allows the setting of error-

per-second thresholds. Once the pre-set error threshold is

exceeded, an event notification is generated that provides

early indication of a problem that may be resolved prior to

loss of service.
Remote Loopback
Remote Loopback is used for fault localization and link

performance testing. When a GX/TM2 port is in loopback

mode, all received service traffic is looped and transmitted

back unaltered. The statistics from the GX/TM2 port and the

remote link partner can be compared for consistency.

ADVANCED FEATURES

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METRO ETHERNET ACCESS

At the Central Office, the GX/TM2 plug-in module is installed

in a managed iConverter 19-Module chassis for high-density

fiber distribution from an UTP switch equipment. At Customer

Premises 1 and 2, GX/TM2 standalone NIDs provide a fiber

uplink to a single copper port for intelligent demarcation of

Ethernet services.

iConverter

GX/TM2