Kontron KTAM3874-pITX - Manual (Page 42)

KTD-S0051-D Page 38 Power Supply
KTAM3874/pITX User's Guide
15.5 Onboard Status LED
Power LED
15.6 Real-Time Clock Battery Connector
An external battery is only needed if time and date should be saved when the board turns off. The battery
interface uses the pin header J1900 (2 pins).
Header Pin Signal Description Type
1 VBAT3 1) Battery input voltage +3V PWR IN
1
2 GND Ground PWR
Note: 1) To protect the external power lines of peripheral devices make sure that
- the wires have the right diameter to withstand the maximum available current.
- to enclosure of the peripheral device fulfills the fire-protecting conditions of IEC/EN 60950.
1 2
J1900