User manual

5 Volt power supply output
CEBO-STICK features a 5V power output on terminal one of the DB9 connector. This
voltage output is sourced by USB power. The absolute maximum current is 100mA.
Important: Keep current below 5mA for accurate measurements on analog inputs.
The 5 Volt power output can be used to source external switches connected to the
digital inputs or to provide constant current for PT1000 sensors. It should not be used to
draw extensive power when accurate measurements are required.
Do not connect an external power source to this output. CEBO-STICK is sourced from
USB and does not need an additional power supply.
Pin Signal Description
1 5V 5 Volt power supply output
12
5 GND GND power terminal
Parameter Min. Typ. Max. Unit
Typical output voltage
12,13
4,75 5,0 5,25 Volts
Voltage drop due to cable impedance
14
0,150 Volts
12 Based on USB specification.
13 No external load.
14 100 mA of external load.
CEBO-STICK Reference Manual Cesys GmbH
[ v1.1 ] 13/28
Figure 5: Power pin assignment