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CWDM

G.703/G.704 Converter

Connection of X.21 devices to framed or unframed E1 leased lines ( n x 64kbps)

SPEED-CONVERTER G:703 E1

Highlights

  • Data rate: 64kbps up to 2Mbps
  • Interface: X.21, V.35
  • Line: G.703/G.704 (E1)
  • For framed and unframed connections
  • Inband management
  • Remote loop can be managed via Sa6 or data channels
  • Optional; NMS/SNMP in the SPEED-SHELF
  • Ultimat flexibility: Rack mount card to be used in the 19"-shelf or in a stand-alone housing

Description

The SPEED-COMVERTER G.703 FE1 is suitable for the transparent connection of X.21 or V.35 devices to 2Mbps links both according to ITU G.703/G.704 framed (e.g. D  MS), and ITU G.703 unframed (e.g. D2MU). It is an ideal, external conversion solution to connect cost-effectively network components (e.g. router) to E1 leased lines. The interface at the end user side corresponds to the electrical specifications according to ITU x.21/V.11 an optionally V.35. The Speed of the G.704 mode is adjustable from 64kbps to 1,984kbps. The SPEED-CONVERTER G.703 FE1 is operating transparently with a synchronous speed of 2,048Mbps using the G.703 node,. The loop function implemented in the converter (remote loop) enables an immediate trouble-shooting in connection with LED indicators. The converter series can be operate as a modem over 4-wire copper lines. The SPEED-CONVERTER G.703 FE1 can be installed in a 1-slot or 3-slot stand-alone housing and can be integrated in the 19"-rack SPEED SCHELF (16 slots). The SPEED SHELF provides the ability to optionally monitor the SPEED-CONVERTER G.703 FE1 via SNMP using a management rack mount card.

PDF download

SPEED_Converter_G.703_FE1e.pdf

Example of use

X.21 connecntion to framed or unframed E1 leased line

SPEED-CONVERTER G.703 E1- Applikation

Star-shaped X.21 extension using 4-wire copper lines

SPEED-CONVERTER G.703 E1- Applikation
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technical data


General

  • LED indicators: Link, DTE and remote loop status, power / system error
  • Remote loop can be managed via Sa6 or data channels
  • Clocking: Internal, external and remote
  • Protocol transparent
  • Operating temperature: 5°C - 40°C
  • Humidity: 10% - 80% (non-condensing)
  • Dimensions (H x W x D): 28 x 131 x 219 mm
  • Power supply: 230V AC and 38 - 78V DC


Line port

  • Coding: HDB3
  • Interface: G.703/G.704
  • Line: 4-wire (120Ω)
  • Connector: RJ45 jack
  • Framed or unframed according to ITU G.704 (incl. CRC-4)


Interface port

  • Interfaces:
    -X.21/V.11 (DB15, DCE/DTE switchable)
    -Optional: V.35 (external Winchester or DB25 adapter)
  • Configurable evaluation of C line signaling
  • Synchronous bit rate: n x 64kbps (n= 0....31) or 2,048MBps unframed
  • DTE can also be configured for G.703 unframed links


Point-to-point operation

  • Distance: 1,7km
  • Attenuation: 36dB
  • Line: 4-wire


Management

  • Settings via DIP switches
  • Integrated RS232 console port
  • Configuration an monitoring management optionally provided using the SNMP agent in the 19"-shelf:
    -Access via RS232 (VT100, PPP over RS232)
    -Access via 10BaseT or Telnet
  • Remote management via remote CLI


Housing options

  • 1-slot stand-alone housing
  • 3-slot stand-alone housing
  • 16-slot 19"-shelf (optinal redundant AC and DC power supplies)