XCel-8 Line Powered Voice Carrier System

CTDI/GoDigital XCel-8 systems transport eight digital POTS lines, CLASS services, and V.90 modem access on a single copper pair, line powered at distances up to 130,000 feet. The XCel-8 can drop off single or multiple services along the copper loop or deliver all services the full distance.

XCel-8 Data Sheet (pdf)
V.90 FAQ
V.90 Release 2 technical note
Configurator Files