10/100 Mbit/s Ethernet Bridge

Ethernet network connection via 2 Mbps leased lines

  • Data rates: 64 kbps to 2 Mbps
  • VLAN transparent up to 1,536 bytes
  • Interfaces: 2 x 10/100BaseTX (switched)
  • Line: G.704/G.704 (E1)
  • Wire-speed performance
  • In-band and out-of-band management
  • Optional: SNMP
  • Location Connectivity with “tagged” Ethernet frames using E1 leased lines

    The SPEED-BRIDGE G.703 FE1 is the ideal solution to realize LAN-to-LAN connection by using a 2 Mbps leased line. The device can be connected to both ITU G.703/G.704 framed (e.g. DTAG D2MS) and ITU G.703 unframed (e.g. DTAG D2MU) links. The bridge learns automatically MAC addresses of the systems that are connected to the LAN and forwards only those packets whose destination address are not located in the local network. The two switched Ethernet interfaces can be used to connect directly two separate Ethernet devices without the need of external switches. The address table saves up to 2,048 MAC addresses. The SPEED-BRIDGE is perfectly suited for transparent VLAN bridging (1,536 bytes). The integrated loop function (remote loop) enables a fast and straightforward status monitoring in conjunction with the LED indicators - without the need of additional monitoring devices.

  • Location Connectivity via 4-wire Copper Line

    In addition the SPEED-BRIDGE G.703 FE1 can be used as a modem for point-to-point oper-ation using a 4-wire copper line to accomplish distances up to 1.7 km. The main field of applications are short-haul networking of branches or in-house Ethernet connection using existing 4-wire copper lines The SPEED-BRIDGE G.703 FE1 can be installed in a 1-slot standalone housing or a 4-slot SPEED-RACKHOUSING (19"). The SPEED-RACKHOUSING provides the ability to optionally monitor the SPEED-BRIDGE G.703 FE1 via SNMP using a management module.


  • LED indicator for E1 link, Ethernet activity, Ethernet link and Ethernet speed
  • DIP switch for remote loop
  • Remote loop can be controlled via Sa6 or data channels
  • Configuration via DIP switch, console port or NMS
  • Clocking: Internal, remote
  • Operating temperature: 0 to 40°C
  • Humidity: 5 to 95% (non condensing)
  • Dimensions (H x W x D): 21 x 131 x 219 mm
  • Poser supply:
    • AC: 100 to 240 V
    • DC: 36 to 72 V (SPEED-RACKHOUSING)

Line port

  • Interfaces: G.703/G.704 (RJ-45)
  • Coding: HDB3
  • Line: 4-wire (120 Ohm)
  • Unframed or framed acc. to ITU G.704 (incl. CRC-4)
  • Connector: RJ-45

Point-to-point operation using copper lines

  • Distance: Up to 1.7 km
  • Attenuation: 36 dB
  • Line: 4-wire

Ethernet port

  • Interface: 2 x 10/100BaseTX, switched
  • Connector: RJ-45
  • Standard: IEEE 802.3 und 802.3u
  • Address table: 2,048 MAC addresses
  • Buffer: For 48 kbps
  • Maximum frame size: 1,536 bytes


  • Settings via DIP switches
  • Integrated console port RS232
  • In-band management using Sa4 or time slot 31
  • Configuration and monitoring management provided by using
    • Access via RS232 (VT100, PPP over RS232)
    • Access via 10 BaseT/Telnet

Housing types

  • 1-slot standalone housing


  • ETSI TBR 13

Ordering options


Get in contact


+49 6103 83 4 83 180

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