Battery Bar; Backup Battery : Over 50 Hours; Sound Level - LG CU405 Service Manual

2. PERFORMANCE

2.8 Battery Bar

Indication
Bar 3 → 2
Bar 2 → 1
Bar 1 → Empty
Low Voltage, Warning message+
Blinking
Power Off

2.9 BACKUP BATTERY : over 50 hours

(when normal POWER OFF/EMERGENCY OFF)

2.10 Sound Level

Ring Tone : Cingular Requested Specification
30Cm distance : under 75dBspl
2.5Cm distance : under 115dBspl
Contact : under 140dBspl (Reporting Maximum Value)
Key Tone (Only Numeric Keypad measured) :
1) Standby :
a) Speaker : under 140dBspl ( when contact state / Maximum Tone ), over 70dBspl ( when
b) Headset : 60 ~ 98dBspl
2) Talk :
a) Speaker : 60 ~ 98dBspl
b) Headset : 60 ~ 98dBspl
Bar3
30cm distance / Minimum Tone),
Over 3.68 ± 0.05V
3.68 ± 0.05V
3.6 ± 0.05V
3.52 ± 0.05V
3.42 ± 0.05V (Stand-by) / 3.52 ± 0.05V (Talk)
[Interval : 3min(Stand-by) / 1min(Talk)]
3.28 ± 0.05V
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Standby