Citizen Systems CBM-290 - Manual (Page 18)

CITIZEN 18
3.2 Connecting a cable for power supply and interface
(1) Make sure that main power supply is turned OFF before connecting this cable.
(2) Prepare power supply which satisfies the power voltage and current capacity specified in this manual.
(3) Firmly connect, in appropriate direction, the power supply and the main body using this cable.
As shown in the drawing, this connector locates on the rear side of main body.
This cable integrates the cable for power supply and the cable for interface.
(4) Connect this cable to external power supply.
Pay attention not to connect power supply cable in reverse polar.
(5) Earth the frame of main body.
Earthing this is recommended to avoid noise and electronic statistic problem. For connecting,
fix it with FG terminal on rear side properly.