1400 LT (250-3500) Pinouts Faxback Doc. # 1925 GND = Ground NC = Not Connected * = Active Low Signal Printer - DB-25 Female: Serial Port - DB - 9 Female: 1 Strobe* 14 Auto Feed* 1 Carrier Detect 2 Data 0 15 Fault* 2 Receive Data 3 Data 1 16 Initialize* 3 Transmit Data 4 Data 2 17 Select In* 4 Data Terminal Ready 5 Data 3 18 GND 5 Signal Ground 6 Data 4 19 GND 6 Data Set Ready 7 Data 5 20 GND 7 Request to Send 8 Data 6 21 GND 8 Clear to Send 9 Data 7 22 GND 9 Ring Indicator 10 Acknowledge* 23 GND 11 Busy 24 GND Keyboard - 5 pin DIN: 12 Paper Out* 25 GND 13 Select 1 Keyboard Clock 2 Keyboard Data Floppy - 37 pin female (external): 3 Keyboard Reset* 1 NC 2 NC RGB - DB-9 Female: 3 GND 4 GND 5 GND 6 GND 1 GND 7 GND 8 Side Select* 2 GND 9 Direction* 10 Write Protect* 3 Red 11 Read Data* 12 Write Data* 4 Green 13 Write Enable* 14 NC 5 Blue 15 Drive Select* 16 NC 6 Intensity 17 NC 18 NC 7 NC 19 NC 20 NC 8 Horizontal Sync 21 NC 22 NC 9 Vertical Sync 23 NC 24 Index* 25 Track 0* 26 Step* 27 Motor On* 28 GND 29 GND 30 GND 31 GND 32 GND 33 NC 34 NC 35 NC 36 NC 37 NC