Citizen Systems CBM-290 - Manual (Page 15)

CITIZEN 15
2.4 Specified Power Supply
The following specifications is required for Power supply.
VCC : DC 5V ± 5% 0.2 - 0.5 A
VP : DC24V±5% 2 - 3 A (6A or more at peak)
Avoid using power supply which its power capacity of power current is extremely high.
2.5 Outer appearances and parts name
2.5.1 Outer appearances and parts name