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For CR4004/ 4104/ 4214: Power connector cable and I/O bracket plate. INSTALLATION CR4000 / 4100 / 4210 Connect the drawer to POS system/printer as shown below: CR4001 / 4101 / 4211 CASH DRAWER With Printer Interface 8P Telephone Jack 8P Telephone Plug 6P Telephone Plug Output to drawer POS System or Printer Ground Rear View Control signal input 1). Connect the drawer serial I/P port to the computer COM port. Connect the power adapter output to the Power Input jack 2). No other RS232C devices sho