NEC N8103-106, Руководство пользователя

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Chapter 1 Overview
First read this chapter if you use the N8103-106 Additional DAC Battery (called Battery
Backup Unit=BBU) for the first time.
This chapter describes the characteristics and configuration of the BBU-Plus2 and outlines
the additional battery installation job.
1. Characteristics of BBU
The BBU is an additional battery exclusively used for the N8103-105 Disk Array Controller
(SAS) (called disk array controller hereafter).
Connecting the BBU to the disk array controller can prevent data from being lost due to an
accident including instantaneous power interruption (in the WriteBack mode).
Backup of data in SDRAMs on disk array controller for up to 72 hours
Improvement of reliability in WriteBack mode
Use of rechargeable lithium ion battery
2. Specification
Item Specification Remarks
Maximum data backup time 72 hours Full charging
Outer dimension 58 (width) × 52 (depth) x 10
(height) mm Excluding battery cable
Weight Approx. 0.10 kg
Operating voltage 3.7 V or higher In normal operation
Power consumption 1.92 W
Temperature 10 C to 35 C Operating
environment
Humidity 20% to 80% Without condensation
Temperature
0 C to 35 C
Storage
environment
Humidity 20% to 80% Without condensation
Life (battery back) About 2 years Varies depending on
operating environment and
boundary conditions