tailieunhanh - QUAD FIBER LOOP CONVERTER AND MOUNTING CHASSIS

ADC has designed a family of Fiber Loop Converters (FLCs) that provides a cost-effective alternative to deploying service over copper while avoiding the high capital investment of DS3 fiber optic terminals. This family includes products designed for economical distri- bution of single or multiple DS1s. The Quad FLC multiplexes up to four T1s for transport over two fibers at distances of 16 to 20 miles (26 to 33 km). The QFLC system consists of a rack mounted central office chassis and a wall mounted customer premises chassis. In contrast to M12/M13 fiber optic terminal sys- tems (FOTS), which require a variety of modules to start up operation, the. | Quad Fiber Loop Conv and Mounting Chassis 2-Position Rack Mount Chassis QFLC Module and Wall Mount Chassis The Quad Fiber Loop Converter System from ADC. The Tl El Service Delivery Experts Telecommunications iSiSH QFLC and Mounting Chassiss Description ADC has designed a family of Fiber Loop Converters FLCs that provides a cost-effective alternative to deploying service over copper while avoiding the high capital investment of DS3 fiber optic terminals. This family includes products designed for economical distribution of single or multiple DS1s. The Quad FLC multiplexes up to four T1s for transport over two fibers at distances of 16 to 20 miles 26 to 33 km . The QFLC system consists of a rack mounted central office chassis and a wall mounted customer premises chassis. In contrast to M12 M13 fiber optic terminal systems FOTS which require a variety of modules to start up operation the QFLC module is a stand-alone system and does not require additional plug-in equipment. The QFLC was designed to be installed quickly. Plug play and walk away installation is a reality with the QFLC. Extensive built-in self-test circuitry allows the QFLC to isolate module failures and alert maintenance personnel via standard office alarms. The optional microprocessor unit MPU residing in the 8 position rack mount chassis collects alarm information from all remote and local QFLC modules for connection to alarm surveillance equipment with a Telemetry Byte Oriented Serial Interface TBOS . The QFLC supports 1 1 redundancy to protect against single point failures of both optical facilities or electronic equipment. The QFLC features two sets of bit error rate BER threshold select switches. These switches enable the user to select the BER at which the module will 1 declare a minor alarm to indicate that the BER has exceeded an early warning level and 2 initiate protection switching in a system configured in a protect mode. The BER threshold at which protection switching occurs may be set .