Nextivity SHIELD BBU - battery backup - unit

The Battery Backup Unit (BBU) provides constant direct current and battery charging capabilities for SHIELD EXTEND systems. In the event of a power failure, the BBU allows SHIELD EXTEND to maintain peak operation for up to 12 hours. In addition to being NEMA 4 rated and listed to UL 2524, the BBU supports four 12-volt lead-acid batteries and includes accessories for wall mounting and cabling for connecting to the MU.