6X Full size bus connectors
3X OpenServo mini driver socket
1X Programming header
2X I2C Sockets (2 discrete busses, i.e not shared)
1X Power Connector
The DIP pins control the voltage levels going to the smaller OpenServo connectors. it it switchable from external regulated supply, or the battery supply.
1+2 3+4 5+6 1st pin +12v second pin +batt