WCM1100: Managed Ethernet Extender over E1/T1

Metrodata Limited

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WCM1100 Quotation
The WCM1100 Ethernet Extender is a low cost Carrier Ethernet Service delivery unit, offering end to end management using 802.3ah OAM, and customer site LAN extension from twisted pair 10Mb/100Mb/1Gb and 100Base/1000Base-X fibre over Clear-Channel or Fractional E1/T1 leased line services.
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10Mb/100Mb/1Gb Ethernet over Fractional E1/T1 Ethernet Demarcation Device

WCM1100: the "plug and play" way to connect LANs together over an E1 circuit
WCM1100: the "plug and play" way to connect LANs together over a Fractional E1 circuit
  • LAN Extension of 10Mb/100Mb/1Gb Ethernet over E1/T1 services
  • 2 copper and 1 SFP fibre Ethernet connections, supporting a choice of fibre module
  • Link State Forwarding
  • Jumbo Frame Support (10kbyte)
  • 802.3ah OAM Support
  • 802.1q VLAN support (pass-through and tag switching)
  • 802.1p priority queuing (4 queues)
  • Single-ended Cisco HDLC mode for use with Cisco routers
  • GFP mode for use with LAN Aggregation equipment
  • RSTP support
  • TACACS+ for secure authentication
  • Zero Touch, Plug and Play Interface
  • LED status indicators
  • Compact modem style unit, built to European standards
  • Integral auto-sensing power supply (100-250V AC or -48V DC versions)
  • Easy to install & maintain
  • Rack mounting kits for 2 or 18 units available
  • 4-port, 8-port and 16-port E1/T1 versions also available
MetroCONNECT supporting Multiple Ethernet Demarcation LAN Extension Devices

MetroConnect Solution for Ethernet Service Demarcation

This application shows an MC12000 MetroCONNECT chassis with WCC1100 modules, supporting multiple WCM1100 Ethernet over Fractional E1/T1 LAN Extension Demarcation Devices. The MetroCONNECT and WCM1100 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 Fractional E1/T1 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 Jumbo frames.

WCM1100 delivering Ethernet services from an MPLS core network

WCM1100 delivering Ethernet services from an MPLS core netrwork

This application shows an WCM1100 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 10Mb/100Mb/1Gb ethernet and SFP fibre ports. OAM support means that the WCM1100 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.

WCM1100 units performing Ethernet service demarcation and media conversion

WCM1100 units performing Ethernet service demarcation and media conversion

This application shows how a pair of WCM1100 units can be used to offer Ethernet service demarcation and Ethernet Extension functionality either over a Fractional E1/T1 circuit.


The WCM1100 is a manageable member of the WAN-in-a-Can product family, offering LAN extension over a fractional E1 wide area link. The WCM1100 is a switching media converter operating in store and forward mode. The WCM1100 supports auto-negotiation, and auto MDI/MDIX cross-over switching on the copper LAN interfaces. The WCM1100 has an SFP module which could support for example 1000Base-SX for 550 metres operation over multi-mode fibre, or 1000Base-LX for up to 10km over a single-mode fibre using LC connectors.

To ensure reliable operation, the WCM1100 supports Link State Forwarding, whereby a fault on the serial port will automatically force a link down on the user ports to indicate to the attached device that there is a link problem. The WCM1100 supports the transmission of Jumbo frames. Internal packet buffering enables the WCM1100 to smooth out bursty traffic without packet loss.

The WCM1100 supports 802.3ah OAM which means that the Ethernet service can be managed and monitored right up to the customer delivery point. The future WCM1100 development roadmap includes support IEEE802.1ag and Y.1731 OAM standards.

Management is offered using OAM, SNMP or Telnet, either locally via any of the available subscriber ports or remotely over a WAN connection. With VLAN support enabled, management access is enabled individually on a per port basis to provide secure access to the unit. Using SNMP, a network manager will have full GET/SET access to all configurable MIB items, and will have access to all statistics and other performance monitoring items including alarms. Separate communities will be supported for GET/SET and TRAP access. The LAN ports will be supported per RFC-1213 MIB-2, whilst the E1 port will operate according to RFC-1406. Unsolicited trap generation will be according to MIB RFC-1215. Additional parameters and traps will be supported via the Metrodata Enterprise MIB.

The WCM1100 supports VLAN in two ways. In normal mode, VLAN tagged frames are passed unmodified; however when VLAN support is enabled, the WCM1100 supports VLAN tag-based switching whereby access may be controlled using VLAN IDs. The unit is password protected for Telnet access for security, and for SNMP is configured with a primary and multiple back-up NMS stations. SNMP access will only be accepted from an authorised NMS.

Compatibility:

  • Unframed HDLC mode for use with the WCM1000 product.
  • Single-ended Cisco HDLC mode for use with Cisco routers.
  • GFP mode for use with LAN Extension Aggregation equipment

The WCM1100 is available in a choice of 100-250 VAC or -48 VDC integrated power supplies.

The WCM1100 can easily be rackmounted in either a 1U two unit rackmount kit, a 6U eighteen unit rackmount kit.

The WCM1100 is part of a wide range of LAN extension products from Metrodata.


WAN Port Specs
Port Fractional E1/T1 conforming to G.703/G.704
Interface
 E1: BNC pair (75 ohm)
E1: RJ45 (120 ohm)
T1: RJ45 (100 ohm)
Framing
 E1: G.704 (with or without CRC4) or unframed
T1: ESF
Line Coding
 E1: HDB3
T1: B8ZS
Bit Rate E1: 2.048Mbps +/- 50ppm
T1: 1.544Mbps +/- 50ppm

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 0dBm
Rx sensitivity -17 to 0dBm
Optical loss budget 9.5dB (10km)

10Mb/100Mb/1Gb Ethernet Interface
Port 2 x 10Mb/100Mb/1Gb with auto-negotiation and Jumbo frame support
Interface RJ45 (Auto Crossover MDI/MDIX)
Operating mode Auto Negotiate, 10M, 100M, 1Gb, Full Duplex, Half Duplex
LEDs Link, Activity, Speed

Compliance & Approvals
Safety EN60950
IEC60825-1 Class 1 Laser Eye Safety
EMC EN55022, EN50082

Environment
Temperature 0 - 50 deg C
0 - 95% RH, non condensing
Storage Temp -40 to 100 deg C
Pressure 86 - 106 kPa

Power Supply Options
-48 VDC -36 to -72V DC, 125 - 65 mA
AC Mains 100 - 250V AC, 50 - 60Hz, 60 - 25mA
Power Consumption 6 watts approx when operating

Packaging
Type Modem, 1U high without feet

Dimensions W x D x H (mm)
Rackmount 202 x 132 x 44 (without feet)
Tabletop 202 x 132 x 48 (with feet)

Order Code
Product AC Mains: 100 - 250 VAC DC Power: -48 VDC
WCM1100 80-70-542 80-71-542
2 Unit Rackmount Kit 80-05-256 80-05-256
18 Unit Rackmount Kit 80-05-250 80-05-255

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
1Gbps Multimode 550m 850nm
 80-31-011
 Multimode interface
fibre optic loss budget 7.5dB
1Gbps Singlemode 10km 1300nm
 80-31-031
 Singlemode interface
fibre optic loss budget 9.5dB
1Gbps Singlemode 40km 1300nm
 80-31-033
 Singlemode interface
fibre optic loss budget 18dB
1Gbps Singlemode 80km 1550nm
 80-31-042
 Singlemode interface
fibre optic loss budget 20dB
100Mbps Multimode 2km 1300nm
 80-30-021
 Multimode interface
fibre optic loss budget 8.5dB
100Mbps Singlemode 10km 1300nm
 80-30-031
 Singlemode interface
fibre optic loss budget 13dB
100Mbps Singlemode 40km 1300nm
 80-30-033
 Singlemode interface
fibre optic loss budget 20dB
100Mbps Singlemode 80km 1550nm
 80-30-042
 Singlemode interface
fibre optic loss budget 29dB

Other SFPs are available on request including long haul, 1550nm, CWDM and bi-directional.

Whilst the Emux product range uses industry standard user exchangeable SFPs, it is recommended that these are purchased from Metrodata to guarantee their specification and compatibilty with each other.

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


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