User guide Interfaces129ECP modeTransmission length: max. 2.0 mPin Signal In/Out Pin Parallel In/Out1 HostClk In 19 Signal GND2 DATA0 Bi-Di 20 Signal GND3 DATA1 Bi-Di 21 Signal GND4 DATA2 Bi-Di 22 Signal GND5 DATA3 Bi-Di 23 Signal GND6 DATA4 Bi-Di 24 Signal GND7 DATA5 Bi-Di 25 Signal GND8 DATA6 Bi-Di 26 Signal GND9 DATA7 Bi-Di 27 Signal GND10 PeriphClk Out 28 Signal GND11 PeriphAck Out 29 Signal GND12 nAckReverse Out 30 Signal GND13 Xflag Out 31 nReverseRequest In14 HostAck In 32 nPeriphRequest Out15 NC 33 Signal GND16 Signal GND 34 NC17 Chassis GND 35 +5V DC Out18 +5V DC Out 36 1284Active In18 11936