Carritech supports the Siemens SURPASS hiX series, including models like the hiX 5625, 5630, and 5635—modular multiservice access platforms used for delivering broadband, voice, and mobile backhaul over copper. These carrier-grade systems support ADSL2+, VDSL2, SHDSL, and legacy voice services. Carritech provides spare parts, repairs, and technical support to help operators maintain and extend the life of their hiX infrastructure.