HiGain® line units (HLUs) offer the industry’s fastest HDSL deployment by automatically
synchronizing the incoming DSX-1 stream and the HiGain remote unit. HiGain also provides
extensive diagnostics, including a 4-character real-time display. A typical HiGain system
consists of CO components, management components, span equipment and remote side
components. The CO side uses an HLU that can be installed on existing CO shelves, ADC’s
HiGain managed shelves or HiGain CO shelves.