San Diego, Calif. Pulse, a Technitrol Company, has introduced its Excelsus L-222RJDP radio frequency interference (RFI) filter that optimizes DSL modem performance by blocking interference from AM/FM/HAM radio, televisions, home network devices, and other RF sources.
Ensuring fast data downloads and clear telephone voice quality when the DSL modem is in use, the new RFI filter prevents RF interference that can degrade voiceband quality; reduce broadband data rates; trigger answering machines, and cause modem connection failures. The RFI filter also removes the differential imbalances caused by RF sources. It has a frequency range of 100 kHz to 10 MHz and attenuation of 0 to -50 decibels, depending on frequency.
Basic RF filters typically connect to a television and filter radio noise out of the video signal. The L-222RJDP is designed specifically for DSL modems where it can be used in conjunction with other Z-BLOCKER DSL filters distributed throughout the subscriber's premises for isolating DSL service from RFI and voiceband equipment devices including wired/cordless telephones, fax/answering machines, dial-up modems, and automatic dialers.
The filter is easily installed and works with any DSL modem, said the company. There are two jacks, one connecting to the phone line and the other to the modem. The filter plugs into a grounded U.S. power outlet and includes a 7-foot twisted-pair cable (model CSPT-7) for optimum data transmission. The filter is compatible with Full Rate DSL, G.Lite DSL, V.90, and Metallic Loop Testing. Compliance and listings include FCC CFR 47 Part 68, CS03, UL 1950, and CSA C22.2 950-95. A standard 12-month Pulse warranty is included.
Designed specifically for U.S. power outlets, the L-222RJDP will be available in September to customers in North America. Customers may purchase it online through the Excelsus Online Store at www.excelsus-tech.com for $29.99.
Call (760) 476-1511