6
metal housings for electronic components
9
asymmetric digital subscriber line components, namely, central office and remote terminal telecommunications hardware modules, access concentrators, test sets, and central office data collection interfaces, all with electronic mountings therefor; network channel termination equipment, namely, tie trunk interface module, dial long line module, data station terminations module, all with electronic mountings therefor, repeaters, and power supplies; access multiplex components, namely, electronic mountings for central office units, ATM interface modules and associated digital subscriber line modules; intelligent envelope delay equalizers; 4-wire tandem D-4 channel units; intelligent equalized transmission only channel units; T1 station products, namely, network interface unit modules, network interface units with performance monitoring modules all with electronic mountings therefore, and T1 repeaters; T1 test units, namely, looping sets and performance monitoring data retrieval sets; T1 maintenance switch systems, namely, common control units, line cards and electronic mountings therefor, DS3 products, namely, network interface units, and electronic mountings therefor; high-bit-rate digital subscriber line components, namely, central office and remote terminal units, and central office maintenance units, all with electronic mountings therefor; litejacks and quadjacks
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