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DC1000 E1 G.703 - V.35 Interface Converter
DC1000 E1 G.703 - V.35 Interface Converter

E1 G.703 - V.35 Interface Converter

The DC1200 provides a new level of performance when connecting routers to unstructured E1 G.703 2Mbps leased lines. The DC1200 provides the conversion necessary to connect the V.35 serial interface of a router to a 2Mbps leased line.

  • Cost Effective E1 to V.35 interface conversion
  • V.35 DCE port for router connection
  • E1 2Mbps G.703 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
  • Rack mounting kits for 2 or 18 units available
  • Can also be used in reverse connecting an E1 device such as a PBX to a V.35 service
  • Can also be used to connect E1 devices to V.35 satellite modems
DC1200 as an E1 G.703 to 2.048Mbps V.35 converter
DC1200 as an E1 G.703 to 2.048Mbps V.35 converter

The DC1200 offers conversion between a V.35 serial interface and an E1 line interface with BNC or RJ45 connector options.

The DC1200 has a simple multi-function status LED and BIT switch configuration with comprehensive configuration and diagnostic information on the unit base label making the DC1200 a truly plug and play device.

The DC1200 can easily be rack mounted in either a 1U two unit rack mount kit, in a 6U eighteen unit rack mount kit .

The DC1200 is also available in a card based format for use with the 4U 12-slot MetroCONNECT managed chassis.

Please Note:

The DC1200 unit is for an unframed (clear channel) 2Mbps E1 G.703 circuit. If you have a framed (fractional) E1 G.704 circuit, i.e. Nx64kbps, or require framing, a DC3200 (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 G.703 leased line service with this product.

Router Applications

PBX Applications

Satellite Applications

DC1200 connecting a V.35 router to an unframed E1 G.703 leased line
DC1200 connecting a V.35 router to an unframed E1 G.703 leased line

This application shows a DC1200 connecting a V.35 router card to an unframed E1 G.703 2.048Mbps leased line, such as a BT Megastream-2 service. V.35 serial ports are often the most cost effective WAN port available on routers. Most Telecom carriers provision E1 2.048Mbps services with G.703 connectivity. Care must be taken to ensure that the remote equipment is configured in a compatible manner (i.e. V.35 or unframed E1 G.703).

V.35 routers connected together via an unframed E1 G.703 leased line using DC1200 units
V.35 routers connected together via an unframed E1 G.703 leased line using DC1200 units

This application shows a pair of DC1200 units connecting a pair of V.35 routers via an unframed E1 G.703 2.048Mbps leased line, such as BT's Megastream-2 service. V.35 serial ports are often the most cost effective WAN port available on routers. Most Telecom carriers provision E1 2.048Mbps services with G.703 connectivity. Care must be taken to ensure that the remote equipment is configured in a compatible manner (i.e. unframed).

DC1200 connecting an E1 G.703 router to a V.35 2.048Mbps leased line
DC1200 connecting an E1 G.703 router to a V.35 2.048Mbps leased line

This application shows a DC1200 connecting an E1 G.703 router card to a V.35 2.048Mbps 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 V.35 or unframed E1 G.703). This application requires a V.35 DCE to V.35 DCE crossover cable.

E1 routers connected together over an V.35 2.048Mbps leased line using DC1200 units
E1 routers connected together over an V.35 2.048Mbps leased line using DC1200 units

This application shows a pair of DC1200 units connecting a pair of E1 G.703 routers via a V.35 2.048Mbps leased line, such as BT's Megastream-2 service. This application requires the use of V.35 DCE to V.35 DCE crossover cables.

DC1200 connecting a PBX to a 2.048Mbps V.35 leased line
DC1200 connecting a PBX to a 2.048Mbps V.35 leased line

This applications show a DC1200 being used to connect a PBX PRI port to a 2.048Mbps V.35 leased line, for when either an existing V.35 leased line is available for re-use or alternatively when V.35 connectivity has been provided rather than G.703 (e.g. for economic reasons). This application requires a V.35 DCE to V.35 DCE crossover cable.

PBXs connected together via a 2.048Mbps V.35 leased line using DC1200 units
PBXs connected together via a 2.048Mbps V.35 leased line using DC1200 units

This applications shows how a pair of PBX systems can be connected together via a 2.048Mbps leased line using a pair of DC1200 units. This would occur either when an existing V.35 leased line is available for re-use, or alternatively when V.35 connectivity has been provided rather than G.703 (e.g. for economic reasons). This application requires the use of V.35 DCE to V.35 DCE crossover cables.

Connecting E1 routers to V.35 satellite modems
Connecting E1 routers to V.35 satellite modems

This application shows a DC1200 connecting an E1 G.703 router card to a V.35 satellite modem. The DC1200 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 DC1200 or router. This application requires a satellite link operating at 2.048Mbps and a V.35 DCE to V.35 DCE crossover cable.

Line E1 Interface
PortG.703, 75 ohm unbalanced, 120 ohm balanced
Interface BNC (75ohm), RJ45 (120ohm)
Line Coding HDB3
Bit Rate 2.048Mbps +/- 50ppm
Barrier Fully compliant as per EN41003
Cable Lengths RG59 = 600m, UR202 = 750m
DTE Interface
Port V.35
Interface ISO2593 34-way female M-rack
Bit Rate 2.048Mbps
Configuration
Clocks Internal, E1 Loop, Terminal, DTE mode
Set by dip switches
Compliance & Approvals
Performance PD7024 (NTR4)
Safety EN41003, EN60950
EMC EMC EN55032
Integral Power Supply
AC Mains 100 - 250 VAC, 50 - 400Hz, 30 - 12 mA, IEC Connector
-48VDC Supply -40 to -72 VDC, 115 - 45 mA
Power Consumption 3.5 watts approx when operating
Environment
Temp 0 - 50 deg C
Humidity 95% RH, non-condensing
Pressure 86 - 106 kPa
Packaging
Type Modem, 1U high without feet, IP30C
Dimensions (W x D x H mm)
Rack mount 202 x 132 x 44 (without feet)
Desktop202 x 132 x 48 (with feet)
Order Code
Product
AC Mains DC Power
DC1200 80-05-212 80-21-212
2 unit rack mount kit 80-05-256 80-05-256
18 unit rack mount kit 80-05-250 80-05-255
MetroCONNECT DC1X00 Module 80-16-210 80-16-210

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

Product Downloads

Product
Datasheet
Manual
DC1200 

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