User guide Specifications87Interfacespecifications Parallel interface bidirectionalType of data transmission 8-bit parallel interface (Centronics compatible)IEEE-1284; Nibble and ECP modeTransmission rate Max. 30 KHzSignal status Low: 0.0 V to +0.4 VHigh: +2.4 V to +5.0 VConnection cable Material: AWG 28 at leastLength: up to 2.0 mTwisted-pair cable with double-shield,acc. IEEE Std 1284 – 1294Voltage supply of externaldevices on pin 18U = +5 V ±10%I = 0.5 AmaxInterface connections Printer side: Amphenol 57-40360, 36-pin(or compatible)Cable side: Amphenol 57-30360, 25-pin(or compatible)Capacity of data buffer 32 KB max.Serial interface RS232C interfaceSynchronization AsynchronousTransmission rate 4,800 bauds to 38,400 baudsSignal status OFF = Mark = log.1 = –3 V to –15 VON = Space = log. 0 = +3 V to +15 VConnection cable Length up to 15 mInterface connections ITT Cannon connector, series DB-9m STransmission protocol XON/XOFF, READY/BUSYCapacity of data buffer 32 KB max.USB interface USB 2.0 Full mode (12 MHz)