Legacy LAN Extenders

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The WAN-in-a-Can range of LAN extender products offer a simple "plug and play" method to extend a LAN connection between multiple sites.

The integrated LAN switch supports local switching, thereby removing the need for external switches or hubs in smaller LAN installations.

Front: WAN-in-a-CANWC1000 DC rear: Ethernet over E1 2Mbps G.703WC X.21 AC rear: Ethernet over X.21

LAN Extension over Serial, E1, E3, DS3 leased lines

WAN-in-a-Can Overview Diagram

WAN-in-a-Can: the "plug and play" way to connect LANs together over the WAN

  • Must be used in pairs
  • Feature rich LAN extender over X.21, V.35, E1, E3 or DS3 leased lines
  • Ethernet switch on subscriber side, with wire speed local switching
  • Auto-negotiating subscriber 10/100BaseT ports, with auto MDI/MDIX switching
  • Wire speed filtering of local packets
  • Efficient HDLC encapsulation on WAN port: 82236 packets per second on DS3
  • Easy to install & maintain
  • Integral auto-sensing power supply (100-250V AC or -40V DC versions)
  • 12-24V DC power supply available on request
  • Compact modem style unit, built to European standards
  • Can also be used to offer asymmetric Ethernet services via EIA530 satellite modems
  • Higher specification MetroCONNECT managed LAN extenders are also available
Specific Product Variants Applications

Connecting two LANs together using an unframed E1 2M G.703 leased line

LAN extension over E1 2Mbps G.703 leased lines

This application shows two LANs connected together using an E1 leased line, such as a BT Megastream-2 circuit. As a plug and play Ethernet switching device the WC1000 is a straight forward and cost effective alternative to the use of routers in small and medium sized networks.

Connecting two LANs together using a fractional E1 Nx64kbps G.703 leased line

LAN extension over Fractional E1 Nx64kbps leased lines

This application shows two LANs connected together using a fractional E1 Nx64kbps G.703 leased line, such as a BT Kilostream-N circuit with G.703 connectivity. In this case the WC X.21 is used in conjunction with a DC3000 to interface to the leased line. As plug and play Ethernet switching devices the WAN-in-a-Can family of products are a straight forward and cost effective alternative to the use of routers in small and medium sized networks.

Connecting two LANs together using an X.21 leased line

LAN extension over an X.21 leased line

This application shows two LANs connected together using an X.21 leased line, such as a BT Kilostream-N circuit. As a plug and play Ethernet switching device the WC X.21 is a straight forward and cost effective alternative to the use of routers in small and medium sized networks.

Connecting two LANs together using a V.35 leased line

LAN extension over a V.35 leased line

This application shows two LANs connected together using a V.35 leased line. As a plug and play Ethernet switching device the WC V.35 is a straight forward and cost effective alternative to the use of routers in small and medium sized networks.

Connecting two LANs together using an E3 leased line

LAN extension over an E3 34Mbps leased line

This application shows two LANs connected together using an E3 leased line, such as a BT Megastream-34 circuit. As a plug and play Ethernet switching device the WC3445 is a straight forward and cost effective alternative to the use of routers in small and medium sized networks.

Connecting two LANs together using a DS3 leased line

LAN extension over a DS3 45Mbps leased line

This application shows two LANs connected together using a DS3 leased line, such as a BT Megastream-45 circuit. As a plug and play Ethernet switching device the WC3445 is a straight forward and cost effective alternative to the use of routers in small and medium sized networks.

Delivering an asymmetric Ethernet service via an EIA530 satellite modem

LAN extension over an EIA530 satellite link

This application shows an Ethernet service delivered via an EIA530 satellite modem. In this application the WC X.21 supports local switching, wire speed filtering and asymmetric data rates up to 20Mbps with an absolute minimum of overhead. This application requires a proprietary EIA530 to X.21 conversion cable.

Full wire speed switching and filtering between the 10/100 BaseT LAN ports is supported so that only packets destined for the remote site are forwarded over the link. Different WAN-in-a-Can models support leased line circuits from 64kbps to 45Mbps, with X.21, V.35, E1 , E3, and DS3 connector options.

In most installations the WAN-in-a-Can products require no configuration, and are therefore truly "plug and play". The subscriber ports perform auto-negotiation and support both 10M and 100M operation in full duplex (FD) or half duplex (HD) modes. Manual selection of 100M FD operation enables connection to fixed router ports. Cabling issues are minimised through the use of automatic MDI/MDIX selection on these ports.

The highly efficient HDLC encapsulation of packets ensures that maximum throughput is achieved on the WAN link. Internal packet buffering enables each WAN-in-a-Can product to smooth out bursty traffic without packet loss.

For low bandwidth applications such as BT's Kilostream, the WC X.21 and WC V.35 models offer a choice of X.21 or V.35 DTE interfaces. The X.21 interface is presented on a 15 way D-Type connector and the V.35 on a 34 way M-rack connector. The serial port operates in DTE mode, and requires the attached DCE (e.g. Kilostream NTU) to supply timing.

The WC X.21 can also be operated in a dual-clock EIA530 mode to support asymmetric operation with an EIA530 satellite modem . An external cable can be used to convert an X.21 interface into EIA-530 .

These WAN-in-a-CAN products can easily be rack mounted in either a 1U two unit rack mount kit, in a 6U eighteen unit rack mount kit or are available in a 1U quad box (1U rack mountable unit containing 4 x WAN-in-a-Can units).

The WC1000 is also available in a card based format for use with the 4U 12-slot MetroRack managed chassis.

Subscriber Port
No. of Ports 4
Presentation 10/100 Base TX, RJ45, Auto-MDI/MDI-X
LED Support Link / Activity & Speed
Operating Mode Auto-negotiate for 10/100, Full or Half Duplex
Port Filtering Rate 148810 packets/second
Port Switching Rate 148810 packets/second
Switch Mode Any to any
MAC Address Table 4096 entries
Packet Size 64 bytes minimum
1536 bytes maximum (except older versions and WC3445 which support 1522 bytes maximum)
WAN Port Specs
WC X.21 WC V.35 WC1000 WC3445 WC3445
Mode SerialSerialE1E3DS3
Presentation 15 way Male D Type 34 way female M rackBNC (75ohm)
RJ45 (120ohm)
BNC (75ohm) BNC (75ohm)
Line Rate 20Mbps (max)20Mbps (max)2.048Mbps34.368Mbps44.736Mbps
Frame Mode UnframedUnframedUnframedUnframedUnframed
Timing DCE SuppliedDCE SuppliedInternal/loopInternal/loopInternal/loop
Encapsulation HDLCHDLCHDLCHDLCHDLC
Max Packet Rate 38462 at 20Mbps38462 at 20Mbps40646412082236
LEDs Tx/Rx PacketTx/Rx PacketTx/Rx Packet, AlarmTx/Rx Packet, AlarmTx/Rx Packet, Alarm
Alarms NoneNoneLOSLOSLOS
Diagnostics NoneNoneExternal loopExternal loopExternal loop

Packaging
Type Modem, 1U high without feet, IP30C

Dimensions W x D x H mm
Rack mount 202 x 132 x 44 (without feet)
Desktop 202 x 132 x 48 (with feet)

Environment
Temp 0 - 50 deg C
Humidity 95% RH, non-condensing
Pressure 86 - 106 KPA

Power Supply
AC Mains 100-250VAC, 50-60Hz, 60-24mA IEC Connector
-40VDC -40 to -72VDC, 200-100mA
Order Code
Product
AC Mains: 100 - 250 VAC DC Power: -40 VDC
WC1000 80-05-541 80-21-541
WC X.21 80-05-545 80-21-545
WC V.35 80-05-546 80-21-546
WC3445 80-05-542 80-21-542
2 Unit Rack mount Kit 80-05-256 80-05-256
18 Unit Rack mount Kit 80-05-250 80-05-255
Quad WC1000 80-405-541 80-421-541
Quad WC X.21 80-405-545 80-421-545
Quad WC V.35 80-405-546 80-421-546
Quad WC3445 80-405-542 80-421-542
MetroRack WC1000 Module 80-15-541

Product variants with 12V to 24V DC operation are also available on request.

MetroCONNECT Ethernet Service Delivery Products - Standalone Units
Ethernet Extenders
E3 Converters
DS3 Converters
E1 Converters

Networking The World Since 1989