HP Designjet 250c Service Manual - Page 20

Power Requirements HP DesignJet 230 and 330 and HP DesignJet 250C and 350C plotters have selfĆadjusting power supplies and do not require a voltage selector or switch settings prior to use. The table below lists the power requirements for the plotters. Power Requirements Source Voltage Requirements: Voltage Max current (rms) Normal Operating Range: Frequency: 100 V ac 120 V ac 220 V ac 240 V ac 1.40 A 1.17 A 0.64 A 0.60 A 90 to 264 V ac 47-63 Hz Consumption: 140 watts maximum WARNING The ac power outlet (mains) must have a protective earth (ground) terminal. Serious shock hazard leading to death or injury may result if the plotter is not properly grounded. Choosing an Interface Cable (Instructions ' User's Guide, chapter 1, w Connect the plotter to your computer.) Serial (RSĆ232ĆC) Interface A short cable (less than 15 meters or 50 feet) is recommended for the RSĆ232ĆC interface. A longer cable is permissible, provided the load capacitance does not exceed 2500 picofarads. Parallel (BiĆTronics/Centronics) Interface Use a short cable (less than 2 meters or 6.6 feet) for the parallel interface. (Interface descriptions ' Service Manual, chapter 5, w Input/Output Interfaces.) 230 250C (Pin specifications ' User's Guide, chapter 5, w Interface specifications.) 330 350C (Pin specifications ' User's Guide, chapter 10, w Interface specifications.) (Cable part numbers ' Service Manual, chapter 10.) 2Ć2 Site Planning and Requirements C4699Ć90000