TANDY 1000 RL/HD (25-1450/51) Pinouts Faxback Doc. # 1305
GND = Ground NC = Not Connected * = Active Low Signal
Printer - 25 pin (D-Sub): Floppy - 34 pin (header)
1 Strobe* 18 GND 1 NC 2 NC
2 Data 0 19 GND 3 +5V (+) 4 NC
3 Data 1 20 GND 5 +5V (+) 6 NC
4 Data 2 21 GND 7 +5V (+) 8 Index*
5 Data 3 22 GND 9 +5V (+) 10 Drive Select 0*
6 Data 4 23 GND 11 +5V (+) 12 Drive Select 1*
7 Data 5 24 GND 13 GND 14 Drive Select 2*
8 Data 6 25 GND 15 GND 16 Motor On*
9 Data 7 17 GND 18 Direction*
10 Acknowledge* 19 GND 20 Step*
11 Busy 21 GND 22 Write Data*
12 Paper Out* 23 GND 24 Write Enable*
13 Select* (busy*) 25 GND 26 Track 0*
14 Auto Feed* 27 GND 28 Write Protect*
15 Fault* 29 +12V (+) 30 Read Data*
16 Initialize* 31 +12V (+) 32 Side Select*
17 Select In 33 +12V (+) 34 Disk Change*
Joystick - 6 pin DIN(2): Keyboard/Mouse - PS/2(2): RGB Video - DB-9 Female:
1 Y Axis 2 X Axis 1 Data 1 GND
3 GND 4 Switch 1 2 Reserved 2 GND
5 +5V 6 Switch 2 3 Ground 3 Red
4 +5 Vdc 4 Green
Serial Port - DB-9 Male: 5 Clock 5 Blue
6 Reserved 6 Intensity
1 Carrier Detect 7 Green (MONO)
2 Receive Data Power Connector (1): 8 Horizontal Sync
3 Transmit Data 9 Vertical Sync
4 Data Terminal Ready 1 +12V (violet)
5 Signal Ground 2 GND (black) Audio Jack:
6 Data Set Ready 3 GND (black)
7 Request to Send 4 +5V (red) 1 Sound 2 GND
8 Clear to Send
9 Ring Indicator Speaker - 2 pin header: Microphone Jack:
1 Sound 2 GND 1 Audio In 2 GND
(/tmc-10/07/95)
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