Managed T1 or Fractional T1 Interface Converter

• Single or dual port access to T1 or fractional T1 services
• Out-of-band management via V.24 supervisory port
• Selectable sync data rates, n x 56/64 kbps or unframed T1
• Data interfaces: V.35, RS-530, V.36/RS-449, X.21, V.24
• Optional 10/100BaseT Ethernet bridge with VLAN support
• Optional sub-T1 drop-and-insert port for PBX connectivity
• T1 interface complies with 62411 and TR 62421
• Main link diagnostics include loopbacks and BERT
• SNMP agent

• 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 T1 or SONET-based networks

Managed interface converter

The FCD-T1LC is a managed interface converter for T1 or fractional T1 services. It provides selectable data rates from 56/64 kbps up to 1,536 kbps or alternatively, unframed T1 can be supported up to 1,544 kbps.

The FCD-T1LC offers an optional sub-T1 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 10/100BaseT Ethernet bridge with VLAN support for direct connection to the LAN.

User data is placed onto the T1 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-T1LC includes a built-in CSU, allowing direct connection to the T1 network. The integral CSU enables a range of up to 2 km (1.2 miles).

Meets all T1 protocol requirements

The FCD-T1LC meets all the requirements of TR 62411 and TR 62421 and supports both D4 and ESF frame formats. Zero suppression over the line is selectable for either B7ZS or B8ZS transparent.

The unit may be clocked from the recovered receive clock of the main/sub-T1 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-T1LC 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-T1 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 or for mounting in a 19" rack shelf.