Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification Intel order number E20188-002 Revision 1.
Revision History Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification Revision History Date April 2007 Revision Number 0.8 Modifications Initial Release July 2007 1.0 Update AXXRSBBU4 picture December 2007 1.1 Update supported RAID devices July 2008 1.2 Update Battery pack information Disclaimers INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL® PRODUCTS.
Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification Table of Contents Table of Contents 1. Overview ............................................................................................................................... 1 2. Hardware ............................................................................................................................... 3 2.1 Electrical and Mechanical Details ............................................................................
List of Figures Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification List of Figures Figure 1. Intel® RAID Smart Battery AXXRSBBU4 ....................................................................... 1 Figure 2. Block Diagram ............................................................................................................... 4 List of Tables Table 1. Electrical and Mechanical Details ...................................................................................
Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification 1. Overview Overview This document describes the key hardware components, firmware, and software utility requirements for the Intel® RAID (Redundant Array of Inexpensive Disks) Smart Battery AXXRSBBU4. The AXXRSBBU4 provides data integrity for the RAID solution by ensuring that the data passing through the cache is written to the hard drives.
Overview Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification The battery pack charges automatically and communicates battery status information, such as voltage, temperature, and current to the host computer system. Because it is faster to write data to the RAID adapter’s cache memory than it is to write it directly to a storage device, data is first written to the cache memory. These write operations are completed quickly at the software application level.
Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification 2. Hardware 2.1 Electrical and Mechanical Details Hardware Table 1. Electrical and Mechanical Details Feature Data retention Up to 72 hours Description Chemistry LiON Dimensions Maximum 3.595-inches by 2.055- inches Weight 95 Grams Operating temperature 10 to 45° C dry bulb temperature (the maximum dry bulb temperature shall be derated by 3.
Hardware 2.2 Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification Functional Block Diagram Figure 2. Block Diagram 2.3 Board-to-board connector The Intel® RAID Smart Battery AXXRSBBU4 is connected through the board-to-board connector. Table 2. Board-to-Board Interface Connector Pin-out 4 Pin 1 Signal Name VBB_DDR_MEM Output Signal Type 2 GND GND 3 +12 V Input 4 GND GND 5 PFAIL# Output 6 BBEN Input 7 +1.8V Input 8 BBU_DET Output 9 3.
Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification 2.4 Hardware Connecting Cable A 5-pin connector cable connects the battery pack to the Smart Battery circuit board. Table 3. Interface Connector Pin-out 2.
Hardware 2.6 Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification - Low capacity Manufacturing information Smart Charger Protocol for improved battery maintenance, calibration, and charging performance Battery Pack 2.6.1 Battery Life and Data Retention Time ® The Intel RAID Smart Battery software utilities use a counter to show the number of times the battery has been recharged.
Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification Hardware These parameters determine the health of the battery. The relearn cycle can be set at a user-definable interval. The default is a one-month (30 days) interval. A relearn cycle is initiated when a new battery is inserted, even if the battery was fully charged previously. Some applications can start a relearn, or a relearn can be manually started. 2.6.2.
RAID Firmware Interaction 3.
Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification 4. Software 4.1 Intel® RAID BIOS Console 2 Software The system BIOS loads the RAID option ROM that is resident on the RAID controller flash. Press + when prompted during POST (Power On Self Test) to use this utility. The option ROM checks for the presence of the battery and informs the user if the battery is missing or not fully charged.