DC1000: E1 to X.21 Converter

Close
Contact Me Request


Call Me!

By submitting a request you agree to our Privacy Policy

The DC1000 provides a new level of price and performance when connecting routers to unstructured E1 G703 2Mbps leased lines.

The DC1000 provides the conversion necessary to connect the X21 serial interface of a router to a 2Mbps leased line.

DC1000 frontDC1000 AC rearDC1000 DC rear

Voir en français

E1 G703 - X21 Interface Converter
DC1000 as an E1 G703 to 2048Mbps X21 converter
DC1000 as an E1 G703 to 2Mbps X21 converter

  • Cost Effective E1 to X21 interface conversion
  • X21 DCE port for router connection
  • E1 2Mbps G703 port for leased line connection
  • Easy to install & maintain
  • Integral auto-sensing power supply (100-250V AC or -40V DC versions)
  • 12-24V DC power supply available on request
  • External alarm relay port
  • Compact modem style unit, built to European standards
  • Quad option available with 4 DC1000 units in a 1U box
  • Can also be used in reverse connecting an E1 device such as a PBX to an X21 service
  • Can also be used to connect E1 devices to EIA530 satellite modems
Router Applications
  • X21 router to E1 2Mbps G703 leased line conversion
  • Connecting pairs of X21 routers over an E1 2Mbps G703 leased line
  • E1 G703 router to 2Mbps X21 leased line conversion
  • Connecting pairs of E1 G703 routers over a 2Mbps X21 leased line
PBX Applications
  • PBX PRI to X21 2Mbps leased line conversion
  • Connecting pairs of PBXs over a 2Mbps X21 leased line
Satellite Applications
  • Connecting E1 G703 routers to EIA530 satellite modems

DC1000 connecting an X21 router to an unframed E1 G703 leased line

DC1000 connecting an X21 router to an unframed E1 G703 leased line

This application shows a DC1000 connecting an X21 router card to an unframed E1 G703 2Mbps leased line, such as a BT Megastream-2 service. X21 serial ports are often the most cost effective WAN port available on routers. Most Telecom carriers provision E1 2Mbps services with G703 connectivity. Care must be taken to ensure that the remote equipment is configured in a compatible manner (i.e. unframed).

X21 routers connected together via an unframed E1 G703 leased line using DC1000 units

X21 routers connected together via an unframed E1 G703 leased line using DC1000 units

This application shows a pair of DC1000 units connecting a pair of X21 routers via an unframed E1 G703 2Mbps leased line, such as a BT Megastream-2 service. X21 serial ports are often the most cost effective WAN port available on routers. Most Telecom carriers provision E1 2Mbps services with G703 connectivity.

DC1000 connecting an E1 G703 router to an X21 2048Mbps leased line

DC1000 connecting an E1 G703 router to an X21 2048Mbps leased line

This application shows a DC1000 connecting an E1 G703 router card to an X21 2Mbps leased line, such as a BT Megastream-2 service. Care must be taken to ensure that the remote equipment is configured in a compatible manner (i.e. either X21 or E1 G703 unframed). This application requires an X21 DCE to X21 DCE crossover cable.

E1 routers connected together over an X21 2Mbps leased line using DC1000 units

E1 routers connected together over an X21 2048Mbps leased line using DC1000 units

This application shows a pair of DC1000 units connecting a pair of E1 G703 routers via an X21 2Mbps leased line, such as a BT Megastream-2 service. This application requires the use of X21 DCE to X21 DCE crossover cables.

DC1000 connecting a PBX to a 2Mbps X21 leased line

DC1000 connecting a PBX to a 2048Mbps X21 leased line

This applications show a DC1000 being used to connect a PBX PRI port to a 2Mbps X21 leased line, for when either an existing X21 leased line is available for re-use or alternatively when X21 connectivity has been provided rather than G703 (e.g. for economic reasons). This application requires an X21 DCE to X21 DCE crossover cable.

PBXs connected together via a 2Mbps X21 leased line using DC1000 units

PBXs connected together via a 2048Mbps X21 leased line using DC1000 units

This applications shows how a pair of PBX systems can be connected together via a 2Mbps leased line using a pair of DC1000 units. This would occur either when an existing X21 leased line is available for re-use, or alternatively when an X21 connectivity has been provided rather than G703 (e.g. for economic reasons). This application requires the use of X21 DCE to X21 DCE crossover cables.

Connecting E1 routers to EIA530 satellite modems

Connecting E1 routers to EIA530 satellite modems

This application shows a DC1000 connecting an E1 G703 router card to an EIA530 satellite modem. The DC1000 supports a number of different clocking modes, and so it is possible to source the clocking for this network from the satellite modems, from one of the terrestrial circuits or from a DC1000 or router. This application requires a satellite link operating at 2Mbps and an X21 DCE to EIA530 DCE crossover cable.

The DC1000 offers conversion between an X21 serial interface and an E1 line interface with BNC or RJ45 connector options.

The DC1000 has a simple multi-function status LED and BIT switch configuration with comprehensive configuration and diagnostic information on the unit base label making the DC1000 a truly plug and play device.

It is possible to connect the DC1000 to EI530 equipment using a converter cable.

The DC1000 can easily be rack mounted in either a 1U two unit rack mount kit, in a 6U eighteen unit rack mount kit or is available in a quad box (1U rack mountable unit containing 4 x DC1000 units).

The DC1000 is also available in a card based format for use with the 4U 12-slot MetroRack managed chassis.

Please Note:

The DC1000 unit is for an unframed (clear channel) 2Mbps E1 G703 circuit. If you have a framed (fractional) E1 G704 circuit, i.e. Nx64kbps, or require framing, a DC3000 (unmanaged) or FM4000 (managed)is required. Many carrier services provide a framed or fractional E1 link, please double check with your provider to ensure that you are using a clear channel 2Mbps E1 G703 leased line service with this product.

Line E1 Interface
PortG703, 75 ohm unbalanced, 120 ohm balanced
InterfaceBNC (75ohm), RJ45 (120ohm)
Line CodingHDB3
Bit Rate 2.048Mbps +/- 50pps
Barrier Fully compliant as per EN41003
Cable LengthsRG59 = 600m, UR202 = 750m

DTE Interface
Port X21
Interface 15-way female D-type
Bit Rate 2.048Mbps

Configuration
ClocksInternal, E1 Loop, Terminal, DTE mode
Set by dip switches

Compliance & Approvals
PerformanceOTR.001
SafetyEN41003, EN60950
EMCEN55022, EN50082

Integral Power Supply
AC Mains100 - 250 VAC, 50 - 400Hz, 30 - 12 mA, IEC Connector
-48VDC Supply-40 to -72 VDC, 115 - 45 mA
Power Consumption3.5 watts approx when operating

Environment
Temp0 - 50 deg C
Humidity95% RH, non-condensing
Pressure86 - 106 kPa

Packaging
TypeModem, 1U high without feet, IP30C

Dimensions (W x D x H mm)
Rack mount202 x 132 x 44 (without feet)
Desktop202 x 132 x 48 (with feet)
Order Code
Product
AC Mains: 100 - 250 VACDC Power: -40 VDC
80-05-210 80-21-210
2 unit rack mount kit80-05-25680-05-256
18 unit rack mount kit80-05-25080-05-255
Quad DC100080-405-21080-421-210
MetroRack DC1X00 Module80-15-21080-15-210

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

Networking The World Since 1989