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RAD's FCD-E1LC managed interface converter integrates voice and data traffic over E1 or fractional E1 lines. The FCD-E1LC offers an attractive entry-level price/performance ratio for campus, corporate, municipal, and utility applications.

The unit supports a wide range of data rates and interfaces, enabling simple connectivity to external devices such as routers. The FCD-E1LC managed interface converter has an optional 10/100 BaseT Ethernet bridge with VLAN support.

The product operates under centralized SNMP network management. When used in conjunction with RAD's DXC cross-connect products, this unit supports multilink star applications such as access to SDH networks. The FCD-E1LC belongs to the FCD family of TDM network termination units.

  • Multiple services transmitted from a single source
  • Management timeslots – allows management of all FCD chain via single DTS
  • Supports a wide range of data rates and interfaces, enabling simple connectivity to external devices
  • Extends data and voice communications over private E1 or SDH-based networks

Managed interface converter

The FCD-E1LC is a managed interface converter for full or fractional E1 services.. Data port rates are selectable for any multiple of 64 kbps up to 1,984 kbps. Alternatively, unframed E1 can be supported up to 2.048 Mbps. The unit offers optional sub-E1 drop-and-insert port for PBX connectivity.

Data or Ethernet port

The basic unit is available with a single data port and an optional second data port. The second data port can be replaced by a 10/100 BaseT Ethernet bridge with VLAN support for direct connection to the LAN. The FCD-E1LC has sub-E1/T1 drop-and-insert ports for PBX connectivity. User data is placed onto the E1 frame using only the required number of timeslots. Timeslot assignment is performed according to the data port speed and can be consecutive or random starting from any timeslot. The FCD-E1LC managed interface converter is available with an integral LTU (line termination unit) that ensures a range of up to 2 km (1.2 miles).

Meets all E1 protocol requirements

The FCD-E1LC managed access unit meets all requirements of ITU G.703, G.704, G.706, G.732 and G.823. It supports both two and 16 frames per multiframe, with or without CRC-4. Zero suppression over the line is HDB3. The unit may be clocked from the recovered receive clock of the main/sub-E1 link or from an internal oscillator. The data channel interface is RS-530. Adapter cables are available for V.35, V.36/RS-422 or X.21. The FCD-E1LC supports an internal SNMP agent and can be managed by any generic SNMP station or by the RADview SNMP network management application. The unit supports dial-in/dial-out, which can be used for remote out-of-band configuration and monitoring (dial-in) and for alarms (dial-out). Diagnostics include user activated local loopbacks on the main/sub-E1 link and DCE data port. A pseudo-random data pattern (BERT) can be used to check the transmission path as well as the local and remote units. The compact 1 U high, half-19” device is available as a desktop standalone unit or for mounting in a 19-inch rack shelf.

  • Single or dual port access to E1 or fractional E1 services
  • Out-of-band management via V.24 supervisory port
  • Selectable sync data rates, n x 64 kbps or unframed E1
  • Data interfaces: V.35, RS-530, V.36/RS-449, X.21, V.24
  • Optional 10/100BaseT Ethernet bridge with VLAN support
  • Optional sub-E1 drop-and-insert port for PBX connectivity
  • E1 interface complies with ITU G.703, G.704, G.706, G.732, G.823
  • SNMP agent
  • Main link diagnostics include loopbacks and BERT

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