NORTHERN Telecom has begun sales in Japan of its newly developed X-DDI series of communications products for local area networks (LANs) which enable data transfers at 100 megabits per second (Mbps) over twisted pair copper LAN wiring.
The data transmission rate on most copper wired LANs is about 10 Mbps.
The X-DDI series not only provides a tenfold increase in LAN data rates but cuts the cost of providing 100 Mbps transmissions by nearly a half by avoiding the use of costly fibre optic cables.
The X-DDI series consists of: X-DDI Work Group Concentrator hardware; X-DDI Interface Adapter Cards for major workstations; and X-DDI Manager, a software application to manage the devices within the LAN from a workstation. The equipment was introduced into the United States market in spring.