IO1-PCB Connector 1 (CPU Address & Data Lines) Pin Description 1 Digital Ground 2 Digital Ground 3 Data 0 4 Data 1 5 Data 2 6 Data 3 7 Data 4 8 Data 5 9 Data 6 10 Data 7 11 Data 8 12 Data 9 13 Data 10 14 Data 11 15 Data 12 16 Data 13 17 Data 14 18 Data 15 19 GND 20 GND 21 Address 0 22 Address 1 23 Address 2 24 Address 3 25 Address 4 26 Address 5 27 Address 6 28 Address 7 29 Address 8 30 Address 9 31 Address 10 32 Address 11 33 Address 12 34 Address 13 35 Address 14 36 Address 15 37 Address 16 38 Address 17 39 Address 18 40 Address 19 41 /Write 42 /Read 43 NC 44 NC 45 NC 46 NC 47 +5V 48 +5V 49 +5V 50 +5V Connector 2 (Analog-Input and TPU-Channels) Pin Description 1 Analog Ground 2 Analog Ground 3 Analog Input Channel 15 4 Analog Input Channel 14 5 Analog Input Channel 13 6 Analog Input Channel 12 7 Analog Input Channel 11 8 Analog Input Channel 10 9 Analog Input Channel 9 10 Analog Input Channel 8 11 Analog Input Channel 7 12 Analog Input Channel 6 13 Analog Input Channel 5 14 Analog Input Channel 4 15 Analog Input Channel 3 16 Analog Input Channel 2 17 Analog Input Channel 1 18 Analog Input Channel 0 19 Analog Ground 20 Analog Ground 21 TPU Channel 0 22 TPU Channel 1 23 TPU Channel 2 24 TPU Channel 3 25 TPU Channel 4 26 TPU Channel 5 27 TPU Channel 6 28 TPU Channel 7 29 TPU Channel 8 30 TPU Channel 9 31 TPU Channel 10 32 TPU Channel 11 33 TPU Channel 12 34 TPU Channel 13 35 TPU Channel 14 36 TPU Channel 15 37 /Chip Select 10 38 /Chip Select 9 39 /Chip Select 8 40 /Chip Select 7 41 /Chip Select 5 42 /Chip Select 4 43 /Chip Select 3 44 /Reset 45 Port F5 46 Port F3 47 Port F1 48 NC 49 NC 50 NC Connector 3 (Servo Port) Pin Description 1 TPU Channel 15 2 Servo Supply (+6V) 3 Digital Ground 4 TPU Channel 14 5 Servo Supply (+6V) 6 Digital Ground 7 TPU Channel 13 8 Servo Supply (+6V) 9 Digital Ground 10 TPU Channel 12 11 Servo Supply (+6V) 12 Digital Ground 13 TPU Channel 11 14 Servo Supply (+6V) 15 Digital Ground 16 TPU Channel 10 17 Servo Supply (+6V) 18 Digital Ground 19 TPU Channel 9 20 Servo Supply (+6V) 21 Digital Ground 22 TPU Channel 8 23 Servo Supply (+6V) 24 Digital Ground 25 TPU Channel 7 26 Servo Supply (+6V) 27 Digital Ground 28 TPU Channel 6 29 Servo Supply (+6V) 30 Digital Ground 31 TPU Channel 5 32 Servo Supply (+6V) 33 Digital Ground 34 TPU Channel 4 35 Servo Supply (+6V) 36 Digital Ground 37 TPU Channel 3 38 Servo Supply (+6V) 39 Digital Ground 40 TPU Channel 2 41 Servo Supply (+6V) 42 Digital Ground 43 TPU Channel 1 44 Servo Supply (+6V) 45 Digital Ground 46 TPU Channel 0 47 Servo Supply (+6V) 48 Digital Ground 49 NC 50 NC Connector 4 (Parallel Printer Port) Pin Description 1 /Strobe 2 /Auto Feed 3 Data 0 4 Error 5 Data 1 6 Init 7 Data 2 8 Select In 9 Data 3 10 Digital Ground 11 Data 4 12 Digital Ground 13 Data 5 14 Digital Ground 15 Data 6 16 Digital Ground 17 Data 7 18 Digital Ground 19 /Acknowledge 20 Digital Ground 21 Busy 22 Digital Ground 23 Paper Empty 24 Digital Ground 25 Select 26 +5V Connector 5 (Serial Port 2 & 3) Pin Description 1 Serial Port 3 (CMOS-Level !!) CD (Carrier Detect) 2 Serial Port 3 (CMOS-Level !!) DSR (Data Set Ready) 3 Serial Port 3 (CMOS-Level !!) RxD (Receive Data) 4 Serial Port 3 (CMOS-Level !!) RTS (Request to Send) 5 Serial Port 3 (CMOS-Level !!) TxD (Transmit Data) 6 Serial Port 3 (CMOS-Level !!) CTS (Clear to Send) 7 Serial Port 3 (CMOS-Level !!) DTR (Data Terminal Ready) 8 Serial Port 3 (CMOS-Level !!) RI (Ring Indicator) 9 Serial Port 3 Digital Ground 10 Serial Port 3 Shield 11 Serial Port 2 NC 12 Serial Port 2 NC 13 Serial Port 2 (RS232-Level) RxD (Receive Data) 14 Serial Port 2 (RS232-Level) RTS (Request to Send) 15 Serial Port 2 (RS232-Level) TxD (Transmit Data) 16 Serial Port 2 (RS232-Level) CTS (Clear to Send) 17 Serial Port 2 NC 18 Serial Port 2 NC 19 Serial Port 2 Digital Ground 20 Serial Port 2 Shield Connector 6 (Digital I/O & Analog Input) Pin Description 1 +5V 2 Digital Output Port 0 3 Digital Output Port 1 4 Digital Output Port 2 5 Digital Output Port 3 6 Digital Output Port 4 7 Digital Output Port 5 8 Digital Output Port 6 9 Digital Output Port 7 10 Digital Ground 11 +5V 12 Digital Input Port 0 13 Digital Input Port 1 14 Digital Input Port 2 15 Digital Input Port 3 16 Digital Input Port 4 17 Digital Input Port 5 18 Digital Input Port 6 19 Digital Input Port 7 20 Digital Ground 21 Analog Input 6 22 Analog Ground 23 Analog Input 7 24 Analog Ground 25 Analog Input 8 26 Analog Ground 27 Analog Input 9 28 Analog Ground 29 Analog Input 10 30 Analog Ground 31 Analog Input 11 32 Analog Ground 33 Analog Input 12 34 Analog Ground 35 Analog Input 13 36 Analog Ground 37 +5V 38 Analog Input 14 39 Analog Input 15 40 Analog Ground Connector 7 (Analog Input) Pin Description 1 +5V 2 +5V 3 Analog Input 0 4 Analog Input 1 5 Analog Input 2 6 Analog Input 3 7 Analog Input 4 8 Analog Input 5 9 Analog Ground 10 Analog Ground Connector 8 (Power Supply) Pin Description 1 Servo Supply (+6V) 2 Servo Supply (+6V) 3 Ground 4 Ground 5 Digital Supply Unregulated (+8V) 6 Digital Supply Unregulated (+8V)