The eLimiter, a line power system that enables Distributed Antenna System (DAS) providers to distribute 48 volts (V) from the DAS neutral host to power remote equipment, is being shown this week at TIA 2012 in Dallas by Canada’s Alpha Technologies Ltd.? ?

“Powering the remote nodes, or antenna, is one of the bigger issues with indoor DAS networks,” comments Michael Burkhalter, vice president/U.S. Telecom Sales. “In public venues, there is a need to minimize the size and number of antenna and supporting power equipment. The eLimiter solves the power equipment problem by eliminating the need for UPS and batteries at each node."?

He continues, “It powers the nodes by using the power and battery system at the neutral host site to safely deliver 48V over composite fiber/copper cable. In addition to being a green solution, the eLimiter approach raises the expectations for reliability by focusing the battery support and maintenance on the centralized site at the neutral host site or base station.”? 

Here’s how it works: The eLimiter 100VA Power Limited Distribution System distributes 48V power from a centralized power system to deliver current over copper cable pairs to power remote nodes.  A single 1RU high eLimiter reportedly can support as many as 24 remote nodes. The eLimiter is a Class 2-rated device, “making it possible for cables connected to the eLimiter to be installed and maintained by any telecom technician,” the company says.

The Daily


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