WCM_Serial: Managed Ethernet over Serial

Metrodata Limited

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The WCM_Serial Ethernet Extender is a low cost Ethernet to Serial service delivery unit, offering end to end management using 802.3ah OAM, and customer site conversion from twisted pair 10/100/1000BaseT Ethernet and 100Base/1000Base-X fibre to Serial leased line services.
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10/100/1000Base Ethernet over Serial, RS232, X.21, V.35

WCM_Serial: the "plug and play" way to connect LANs together over a serial circuit
WCM_Serial: the "plug and play" way to connect LANs together over a serial circuit
  • LAN Extension of 10/100/1000BaseT Gigabit Ethernet over Serial services
  • 2 copper and 1 SFP fibre Ethernet connections, supporting a choice of fibre module
  • Fractional LAN Extension over X.21, V.35, EIA-530 up to 15Mbps
  • LAN Extension over RS232 up to 256Kbps
  • 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)
  • 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)
  • 12-24V DC power supply available on request
  • Easy to install & maintain
  • Rack mounting kits for 2 or 18 units available

MetroCONNECT supporting Multiple Ethernet Demarcation LAN Extension Devices

MetroConnect supporting Multiple Ethernet Demarcation LAN Extension Devices

This application shows an MC12000 MetroCONNECT chassis with WCC_Serial modules, supporting multiple WCM_Serial Ethernet over Serial LAN Extension Demarcation Devices. The MetroCONNECT and WCM_Serial 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 Serial 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.

WCM_Serial delivering Ethernet services from an MPLS core network

WCM_Serial delivering Ethernet services from an MPLS core network

This application shows an WCM_Serial 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 WCM_Serial can be remotely managed by the central network management system using standards based OAM packets.

WCM_Serial units performing Ethernet service demarcation and media conversion

WCM_Serial units performing Ethernet service demarcation and media conversion

This application shows how a pair of WCM_Serial units can be used to offer Ethernet service demarcation and LAN Extension functionality over a Serial circuit.


The WCM_Serial is a switching ethernet media converter operating in store and forward mode. The WCM_Serial supports auto-negotiation, and auto MDI/MDIX cross-over switching on the copper interface.

To ensure reliable operation, the WCM_Serial 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 WCM_Serial supports the transmission of Jumbo frames.

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

The WCM_Serial is provided with an SFP module with LC connector supporting for example 1000Base-SX for 550 metres operation over multi-mode fibre, or 1000Base-LX for up to 10km over a single-mode fibre.

The WCM_Serial is ordered without an SFP fitted, although customers can subsequently change their interface type. Please contact Metrodata for price and availability of SFP modules including long haul, 1550nm, bi-directional and CWDM.

Compatibility:
  GFP mode for use with LAN Aggregation equipment

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

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

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


WAN Port Specs
Interface
 Cisco compatible Serial
Presentation

 60 way Female D Type
Line Rate
 15Mbps (max)
Cabling examples
 Use CABX21-MT for connection to X.21 NTU
Use CABV35-MT for connection to V.35 NTU

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
 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
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, IP30C

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
WCM_Serial
 80-70-545
 80-71-545
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 MetroCONNECT 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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Ethernet Media Converters

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