TAILIEUCHUNG - E1 QUAD FIBRE LOOP CONVERTER AND UNIVERSAL MOUNTING CHASSIS

ADC has designed a family of Fibre Loop Converters (FLCs) that provide a cost-effective alternative to deploying service over copper while avoiding the high capital investment of primary multiplexers and Fibre optic terminals. This family includes products designed for economical distribution of single or multiple Mb signals. The E1 Quad FLC multiplexes up to four Mb signals for transport over two fibres at typical distances of 72 Km (44 miles). The E1 QFLC system consists of a rack mounted central exchange shelf and a wall or rack mounted customer premises shelf. In contrast to fibre optic terminal systems (FOTS), which require a variety of. | E1 Quad Fibre Loop Converter and Universal Mounting Chassis Ill E1 Quad Fibre Loop Converter Description ADC has designed a family of Fibre Loop Converters FLCs that provide a cost-effective alternative to deploying service over copper while avoiding the high capital investment of primary multiplexers and Fibre optic terminals. This family includes products designed for economical distribution of single or multiple Mb signals. The E1 Quad FLC multiplexes up to four Mb signals for transport over two fibres at typical distances of 72 Km 44 miles . The E1 QFLC system consists of a rack mounted central exchange shelf and a wall or rack mounted customer premises shelf. In contrast to fibre optic terminal systems FOTS which require a variety of modules to start up operation the E1 QFLC module is a stand-alone system and does not require additional plug-in equipment. The E1 QFLC was designed to be installed quickly. Installation is accomplished by simply plugging a single module into the chassis and conducting basic checks. Extensive built-in self-test circuitry allows the E1 QFLC to isolate module failures and alert maintenance personnel via standard office alarms. The E1 QFLC supports 1 1 redundancy to protect against single point failures of both optical facilities or electronic equipment. The E1 QFLC features two sets of bit-error rate BER threshold select switches. These switches enable the technicians 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 according to the performance levels developed for access systems. Utilizing remote loopback end-to-end performance can be tested at the local end. By pressing the remote alarm display switch local front panel LEDs instantly display remote module status. This is used to determine the cause .

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