ADC offers a wide variety of HDSL modules to fit numerous shelf types such as industry
standard 220 style repeater, 3192 style repeater and also ADC’s unique Soneplex system
chassis. All chassis styles provide the mechanical interface for conversion from standard
DS1 signals to HDSL encoded signals. This HDSL encoded signal is called 2B1Q and
provides the capability to transmit DS1 signal information over longer distances without
the need for traditional repeaters.