BECKHOFF CB1052 - Manual (Page 18)

Chapter: Connectors Power Supply, System Connectors, CPU
page 18 Beckhoff New Automation Technology CB1052
3.1.4 CMOS battery
The board ships with a CR2032 battery holder (Renata VBH2032-1) and 3V battery. Alternatively, an
external battery can be connected via a 2pin connector (JST B2B-EH-A, mating connector: EHR-2).
Pin Name Description
1 BATT battery 3.3 volt
2 GND ground