Technical specifications
Power supply
9-28V
⎓
(VDC)
Reverse polarity protection with 1.1A resettable
fuse. Surge protection up to ±1000V/2ohms
1.2/50
μ
s
Battery input
12V lead acid battery (not provided).
Suggested capacity:
1.2Ah. Reverse polarity
protection with 1.1A resettable fuse. Surge
protection up to ±500V/2ohms 1.2/50
μ
s
UPS battery maximum charge voltage
15V
UPS battery charge current
30mA
Voltage threshold for switching to battery mode
7.2V, 0.2V hysteresis
Current consumption at VS+ 12V
⎓
including Raspberry Pi 3 current, with low CPU/GPU
load and no USB devices connected
150mA w/o Ethernet and battery
180mA with Ethernet, battery and RS-485
Actual current consumption may vary based on
working conditions
Current consumption at VS+ 24V
⎓
including Raspberry Pi 3 current, with low CPU/GPU
load and no USB devices connected
85mA w/o Ethernet and battery
100mA with Ethernet, battery and RS-485
Actual current consumption may vary based on
working conditions
Raspberry platform compatibility
Pi 3 Model B+
Pi 3 Model B
Pi 2 Model B
(only tested with Pi 3 for CE and FCC compliance)
Serial communication ports
RS-485 Half-Duplex with automatic data direction
management
RS-232 Full-Duplex
Baud Rates on COMM ports
1200 to 115200
ESD-Protection Voltage on RS-232 TX/RX
±15kV human body model
±8kV contact discharge
ESD-Protection Voltage on RS-485 A/B
±15kV human body model
±8kV contact discharge
Surge protection on RS-485 A/B
Surge protection up to ±500V/2ohms 1.2/50
μ
s;
600W peak pulse power capability at 10/1000
μ
s
waveform
Fail safe feature on RS-485
Yes
23
Strato Pi UPS User Guide