UPS25 19
RTD Embedded Technologies, Inc
Connector descriptions:
•
VIN:
Raw input power to the UPS25. Input voltage ranges 10-40V DC
This input is fed to the power supply through the UPS25 in normal operation mode
(no backup from the battery pack).
Note:
The module input power may be 5 Amp peak, this will require a cable wire
diameter of 1,5 sq. mm. Make sure this input wire is kept as short as
possible to reduce voltage drops and interference.
•
Batt: Connect your external 8 AA-size 1500mAh Ni-MH or 1000mAh Ni-Cd battery pack here. Batt- is
connected to the system ground.
•
NTC: Direct connection to the NTC thermistor of your battery pack.
•
VO: Output of the UPS to the power supply module
•
VOS: Switched output of the UPS to feed the power supply module. If this connection is used you can under
software control disengage the battery backup when the shutdown procedures are complete. (See later sections for
a more detailed description on the functionality of this output)
