12
1.7.3 Parameter of external antenna
Items
Parameter
Carrier frequency band
915MHz-925MHz
Impedance
50Ω
MAX cable length
20m
Terminal type
BNC
Dimensions
345×80mm(with bracket)
N.W
100g (with bracket)
1.8 Infrared conference system LIP battery H-8610B
1.8.1 Picture of the actual object
1.8.2 Features of LIP battery
a. Excellent safety performance, light weight & High capacity ratio.
b.
Improved safety: more resistant to overcharge; less change for electrolyte leakage.
c. High Capability: Have nearly double the capacity with half the weight of NiCad or NiMH
battery packs
d. Easy to install
1.8.3 Schematic diagram of LIP battery
1) Battery detach/lock button
2) Negative
3) Positive
1.8.4 Parameter of LIP battery
Items
Parameter
Rated voltage
DC12V
Discharge current
<
500mA
Charging current
<
700mA
Time of speaking
>
8 hours
Time of standby
>
25 hours
Charging voltage
DC15V
Dimensions
130×64×25mm
N.W
250g