User's Manual

29/OCT/2014 REVIEW DRAFT — CISCO CONFIDENTIAL
3-6
Cisco IR500 Series WPAN Gateway and Range Extender Installation and Configuration Guide
Chapter 3 Battery Backup Unit
BBU Technical Specifications
Discharge Conditions
Ta b l e 3-4 Battery Backup Unit—Discharging Specifications
Discharge Conditions Description
Power load 4–6 W typical
Duration 8–12 hours typical
Entry to discharge
1
1. All conditions met.
• AC power (range of 85V to 250V) not
detected for more than 20 ms
• Remaining BBU capacity >5%
• External ambient temperature is within
-40 to 122°F (-40 to 50°C)
Exit discharge
2
2. Any condition met and system is detected.
• AC power restored in the range of
85V to 250V for more than 20 ms.
• Remaining BBU capacity <5%
• External ambient temperature is outside of
-40 to 122°F (-40 to 50°C)
Charge Conditions
Ta b l e 3-5 Battery Backup Unit—Charge Specifications
Charge Conditions Description
Power draw No more than 20 W when charging
State of charge No more than 90%
Entry to charging limit
1
1. All conditions are met.
• Charge is enabled
• State of Charge (SOC) <85%
• AC power detected in the range of
85V to 250V for more than 20 ms.
• External ambient temperature is within
-4 to 104°F (-20 to 40°C)
Exit charging
2
2. Any condition is met
• Charge is disabled
• AC power (range of 85V to 250V) not
detected for more than 20 ms.
• External ambient temperature is outside of
-4 to 104°F (-20 to 40°C)