Increased Battery Power Source Reliability for Remote Telephone Reserve and Uninterruptible Power Systems

Historically, flooded lead acid batteries have been the most frequently recommended and designated battery system selected for reserve, central office, telephone switching equipment and large, uninterruptible, computer power source. These power systems are usually comprised of one or more "battery" voltages for telephone switching and associated equipment throughout the telephone office. The battery system, in conjunction with AC to DC rectifiers, controls, distribution equipment and required converters and inverters, plays an essential part in providing dependable power to operating telephone equipment. However, a new generation of telephone equipment developed to meet the needs of localized switching, management and customer premise systems is requiring a new battery source with features and reliability which differ from centrally managed power systems. In retrospect, many improvements and technology breakthroughs, such as gelled electrolytes and low pressure sealed systems, have contributed to improved performance and reliability. However, further advancements are necessary to be consistent with the demanding reliability requirements of these newer remote terminals and systems.