Sonet/sdh transceivers

Oct. 1, 1997
Two coded mark inversion transceivers handle E4 and stm-1 full-duplex data at distances greater than 175 meters on 75-ohm coaxial cable. Transformer coupling is used to match impedances of the ecl circuit and the cable plant within the application for an output signal with a -15-decibel minimum return loss. Wideband transformers provide little radiated emissions and high noise immunity. Model TM311trfva with los detection measures 0.760 x 0.610 x 0.180 inches; Model TM311dva measures 0.800 x 0.4

Two coded mark inversion transceivers handle E4 and stm-1 full-duplex data at distances greater than 175 meters on 75-ohm coaxial cable. Transformer coupling is used to match impedances of the ecl circuit and the cable plant within the application for an output signal with a -15-decibel minimum return loss. Wideband transformers provide little radiated emissions and high noise immunity. Model TM311trfva with los detection measures 0.760 x 0.610 x 0.180 inches; Model TM311dva measures 0.800 x 0.400 x 0.200 inches.

Technitrol Pulse Components Div.

Bristol, PA

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