Ocom OCPP-M05 Instruction Manual
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4.Communication Interface 1. RS232(COM)：standard RS232 Communications Protocol 2. Bluetooth 2.0：standard Bluetooth 2.0 Communications Protocol 3. USB：standard USB Communications Protocol4-1. RS-232 Serial InterfaceRS-232 is developed according to the EIA standard asynchronous transmission, thespecifications are as following:Data transmission: serial interfaceSynchronization: asynchronousSignal Level: RS-232 level, logic 1:-5.4v, logic 0 : +5.4vHardware Flow Control: NoneBaud rate: 2400pbs to 115200pbs is optionalData word length: 8 bitsStop bit: 1bitParity: NoneUsers can get the current baud rate from the printer self-testing page.Serial cable: We have made the cable specially using mini port like Mini USB port whichconnects the printer .The following picture shows the signal definition of the RS-232 Serialinterface:The connection between the printer and host follows the following rules:Printer HostTXD RXDRXD TXDGND GND |
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