Intel RMS25PB080 Hardware User's Guide - Page 16

Remote Battery Connecting Cables A 20-pin cable is provided in the battery kit to remotely connect the Intel® RAID Smart Battery AXXRSBBU9 to the RAID controller, or to a Cache Memory Board which is mounted on the RAID controller. Intel recommends mounting the battery remotely from the RAID controller when possible to provide additional cooling. Table 1. Cable Compatability Intel® RAID Controller or Server System Intel® RAID Controller RS25DB080. 27-inch Cable X (Required to connect to cache memory board on the RAID controller) Important Pre-installation Considerations Warning: Always ground yourself and/or use a ground strap before touching the RAID controller or the Intel® RAID Smart Battery AXXRSBBU9. Perform all installation work at an ESDsafe workstation. Use an ESD-safe Phillips* screwdriver set to a maximum torque of 2.25 inch-pounds, and be sure the screwdriver is centered in the screw to avoid damaging the screw head. If you exceed the maximum torque specification, you may damage the board, connectors, or screws, and you will void the warranty of the board. The batteries in the Intel® RAID Smart Battery AXXRSBBU9 must charge for at least four hours during fast charge, under normal operating conditions. To protect your data, Intel recommends that you set the RAID Controller Write Policy to write-through until the battery unit is fully charged. When the battery unit is charged, you can change the Write Policy to write-back to take advantage of the performance improvements of data caching. The maximum ambient temperature for the battery pack is shown in the following tables. AXXRSBBU9 Operating temperature of 55°C Expected hold time Service life 48 hours Up to 1 year 12 hours Up to 3 years AXXRSBBU9 Operating temperature of 45°C Expected hold time Service life 48 hours 12 hours Up to 3 years Up to 5 years Note: The temperature of the battery pack is generally 15-20 degrees higher than the ambient temperature during fast charge. Therefore, to complete the fast charge cycle, ambient 4 Intel® RAID Smart Battery AXXRSBBU9 User's Guide