Bourns has designed its MSP Assembly to meet the challenges of tomorrow's high speed telecommunications circuits by combining the robustness of a heavy-duty gas discharge tube (GDT), with the responsiveness of solid-state technology.
As wireline telecom networks become shorter in length, modern electronic equipment is more susceptible to higher energy surges over progressively smaller pair counts. MSP (multistage protection) devices use patented technology to provide high surge carrying levels, while minimising bandwidth limiting capacitance. Service life is extended by the elimination of air back up gaps, while precision matched metal oxide varistors (MOVs) ensure optimum safety and consistently low clamping levels.
MSP technology exceeds all industry standards for impulse-life and AC life, says Bourns. According to the company, recent uses with VDSL (12 MHz bandwidth with 50 Mbps data rates) have demonstrated enhanced system performance and reach parameters attesting to the technology's 'future-proofing' electronic performance. High-speed data is virtually unimpeded due to its low insertion loss and behaves transparently to the information flow due to its high return loss. In a recent deployment of a fibre optic-copper/LAN system with video-on-demand, streaming video at a rate of 108 Mbps was sent through the copper loop to the customer premises without error.
MSP products meet or exceed requirements put forth by agencies such as Underwriter's Laboratories, Telcordia (formerly Bellcore), CSA, and RUS. MSP technology is featured in the Bourns circuit protection product line, and primary telephony products including 5-pin CO (central office) protectors and NID (network interface devices) protectors.
The 6th Generation Gas Discharge Tube has a 2000 A, 10/250 impulse capability. The use of MOVs eliminates a leading cause of premature GDT failure. The patented switch-grade 'fail-short' reduces risk of thermal runaway and offers maximum fire safety protection.
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