MetroCONNECT: WCM3100 Ethernet Converter over E3/DS3 services
MetroCONNECT: WCM3100 Ethernet Converter over E3/DS3 services

10Mb/100Mb/1Gb Ethernet Converter over E3/DS3 services

The WCM3100 Ethernet Converter provides LAN extension over E3/DS3 leased lines which can be either Clear-Channel or Framed. It offers Carrier Ethernet Service delivery whilst providing end to end management using 802.3ah OAM.

2-port and 4-port E3 / DS3 versions also available

LAN extension over Clear-Channel or Fractional E3 or DS3 services

WCM3100: Managed Ethernet connectivity an E3 or DS3 circuit
WCM3100: Managed Ethernet connectivity over an E3 or DS3 circuit
  • Two RJ45 plus one SFP flexible media port, offering local Switched Ethernet connections up to 1Gbps
  • Ethernet Jumbo Frame Support (2048 byte)
  • Fully manageable via Serial Terminal (user-friendly context-sensitive menu system), Telnet/SSH, SNMP and Web Browser. TACACS+ for secure Management authentication
  • Carrier Ethernet OAM protocol support, for Connectivity Management
  • Integrated 'Bit Error Rate Testing' (BERT) for WAN link verification and troubleshooting
  • 802.1q VLAN support with prioritisation based on 802.1p and/or DSCP markers
  • Bandwidth control per Priority queue, for differentiated traffic QoS across the WAN
  • RSTP Support
  • LED status indicators
  • Alarm Extension Relay
  • Robust metal casing, made in the UK to high quality standards
  • Integral auto-sensing power supply (100-250V AC or -48V DC versions)
  • 12V & 24V DC PSU variants also available on request
  • Easy to install & maintain
  • Optional rack-mounting kit available
  • 2-port and 4-port E3 or DS3 versions also available

The WCM3100 is a member of the MetroCONNECT family, offering Managed LAN extension over either Clear-Channel or Fractional E3 or DS3 Wide Area Networks.The WCM3100 supports two RJ45 LAN interfaces.A further LAN interface is provided via an SFP port, offering the flexibility of an RJ45 or a wide variety of fibre interface options. Over-sized Ethernet frames, of up to 2048 bytes, are supported.

Ethernet VLANs are supported, either by pass-through of existing Tags or by the Push and Pop of Tags on ingress and egress at Ethernet ports. Pre-embedded prioritisation schemes can be honoured, or alternatively prioritisation can be over- written under Management control. Bandwidth limitation per port and per prioritisation can be implemented, providing a mechanism for differentiated QoS for multiple services. Management is offered via each of; Serial Terminal connection,Telnet, SNMP or Web Browser application. Management security is offered via SSH and TACACS+ authentication. Support is also offered for ‘Carrier Ethernet’ Link OAM Management (IEEE802.3ah), enabling status information to be shared with connected equipment if required.

In line with all other members of the MetroCONNECT Ethernet Service Delivery family,theWCM3100 supports Metrodata’s ‘zero-touch’ installation process, eliminating the need for skilled resources for remote-site installations.

The WCM3100 supports integrated ‘Bit Error Rate Testing’ (BERT), an invaluable aid during both installation and subsequent troubleshooting. This facility enables integrity testing of the WAN link, prior to application of Ethernet traffic, eliminating doubt as to the location of connectivity problems.

Ethernet traffic is encapsulated by the WCM3100, for transmission over an E3 or DS3 link, using a number of optional schema, including support for the ITU-T G.8040 standard ‘Generic Framing Procedure’ (GFP).The product can be used for both simple Point-to-Point networks, using two WCM3100 products linked via either terrestrial or wireless (e.g. microwave) WAN services, or as part of a Point-to-MultiPoint topology, using the MetroCONNECT WCM3200 and 3400 products, the MC12000 Ethernet Service Delivery Chassis, or third-party aggregation platforms.

The WCM3100 is available in a choice of 100-250 VAC or -48 VDC integrated power supplies.

The WCM3100 can easily be rack mounted in either a 1U two unit rack mount kit , a 6U eighteen unit rack mount kit.

The WCM3100 is part of a wide range of LAN extension products from Metrodata.

MetroCONNECT Solution for Ethernet Service Demarcation
MC12000 supporting Multiple Carrier Ethernet Demarcation / LAN Extension Devices

This application shows an MC12000 MetroCONNECT chassis with WCC3100 modules, supporting multiple WCM3100 Ethernet Converters over Framed E3/DS3 devices. The MetroCONNECT and WCM3100 together offer LAN Extension and Ethernet demarcation, with remote management via 802.3ah OAM. Various service delivery options are available including fibre, copper, and fibre plus copper over a Framed E3/DS3 circuit. Comprehensive remote network management access is available via the MetroCONNECT including end to end remote management using 802.3ah OAM. 10M, 100M and Gigabit Ethernet applications can all be supported, as can Mini Jumbo frames.

WCM3100 delivering Ethernet services from an MPLS core network
WCM3100 delivering Ethernet services from an MPLS core network

This application shows an WCM3100 unit being used as the Ethernet demarcation device to deliver a Carrier Ethernet service from an MPLS core network. A wide choice of Ethernet connectivity is available for the user via the 10/100/1000baseT and SFP fibre ports. OAM support means that the WCM3100 can be remotely managed by the central network management system using standards based OAM packets. GFP is supported allowing single ended use with aggregation platforms in the core network.

WCM3100 units performing Ethernet service demarcation and media conversion
WCM3100 units performing Ethernet service demarcation and media conversion

This application shows how a pair of WCM3100 units can be used to offer Ethernet service demarcation and LAN Extension functionality over a Framed E3 or DS3 circuit.

WAN Port Specs
Port Framed E3/DS3 conforming to G.703
Interface BNC pair (75 ohm)
Framing E3: G.832 or unframed
DS3: C-bit parity or unframed
Line Coding E3: HDB3
Bit Rate E3: 34.368Mbps +/- 20 ppm
DS3: 44.736Mbps +/- 20ppm
1000Base-X Fibre Interface
Port IEEE802.3z 1000BaseX
Interface Dual LC connectors
SFP 1000Base SX
Wavelength 850nm multimode
TX Power -9.5 to -3dBm
Max Rx input power 0dBm
Rx sensitivity -17 to 0dBm
Optical loss budget 7.5dB (550m)
SFP 1000Base LX
Wavelength 1300nm singlemode
TX Power -9.5 to -3dBm
Max Rx input power -3dBm
Rx sensitivity -19 to -3dBm
Optical loss budget 9.5dB (10km)
10/100/1000BaseT Electrical Interface
Port 2x 10/100/1000BaseT with auto-negotiation and Jumbo frame support
Interface RJ45 (Auto Crossover MDI/MDIX)
Operating mode Auto Negotiate, 10M, 100M, 1000M, Full Duplex, Half Duplex
LEDs Link, Activity, Speed
Compliance & Approvals
Safety EN60950
IEC60825-1 Class 1 Laser Eye Safety
Temperature 0 - 50 deg C
Humidity 0 - 95% RH, non condensing
Storage Temp -40 to 100 deg C
Pressure 86 - 106 kPa
Power Supply Options
-48 VDC -40 to -72V DC, 125 - 65 mA
AC Mains 100 - 250V AC, 50 - 60Hz, 60 - 25mA
Power Consumption 6 watts approx when operating
Type Modem, 1U high without feet
Dimensions W x D x H (mm)
Rack mount 202 x 132 x 44 (without feet)
Tabletop 202 x 132 x 48 (with feet)
Order Code
Product AC Mains DC Power
WCM3100 80-70-543
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2 unit rack mount kit 80-05-256
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18 unit rack mount kit 80-05-250
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Product variants with 12V to 24V DC operation are also available on request.

If you require further information please contact our sales team with your requirements.

Commonly used SFP transceivers Order Code Description
10Gbps Multimode 550m 300nm 80-38-011
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Multimode interface
fibre optic loss budget 5.1dB
10Gbps Singlemode 10km 1300nm 80-38-031
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Singlemode interface
fibre optic loss budget 6.3dB
1Gbps Multimode 550m 850nm 80-31-011
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Multimode interface
fibre optic loss budget 7.5dB
1Gbps Singlemode 10km 1300nm 80-31-031
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Singlemode interface
fibre optic loss budget 12dB
1Gbps Singlemode 80km 1550nm 80-31-042
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Singlemode interface
fibre optic loss budget 24dB
100Mbps Multimode 2km 1300nm80-30-021
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Multimode interface
fibre optic loss budget 12dB
100Mbps Singlemode 10km 1300nm80-30-031
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Singlemode interface
fibre optic loss budget 17dB

Need to add more SFP's to your quote?

To see more of Metrodata's SFP offering of Fibre Transceivers, click here.

Many other transceivers are available on request including long haul, 1550nm, CWDM, DWDM and bi-directional.

Whilst the MetroCONNECT product range uses industry standard user exchangeable SFP and SFP+ transceivers, it is recommended that these are purchased from Metrodata to guarantee their specification and compatibility with each other.

If you require another transceiver please contact our sales team with your requirements.

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