TANDY 1000RLX (250-1452/53) Pinouts Faxback Doc. # 1325
GND = Ground NC = Not Connected * = Active Low Signal
Printer - 25 pin (D-Sub): Keyboard & P/S 2-Style RS-232C Serial Port:
Mouse Connectors:
1 Strobe 18 GND Pin Function:
+ Data 0 19 GND Pin Function
3 Data 1 20 GND 1 Carrier Detect
4 Data 2 21 GND 1 Data 2 Receive Data
5 Data 3 22 GND 2 Reserved 3 Transmit Data
6 Data 4 23 GND 3 Ground 4 Data Terminal Ready
7 Data 5 24 GND 4 +5 Vdc 5 Signal Ground
8 Data 6 25 GND 5 Clock 6 Data Set Ready
9 Data 7 6 Reserved 7 Request to Send
10 Acknowledge 8 Clear to Send
11 Busy 9 Ring Indicator
12 Paper End
13 Select
14 Auto Feed Video Port Connector:
15 Error
16 Initialize Pin Function
17 Select In
1 Red
Left Joystick: 2 Green
3 Blue
1 Position 1 2 Position 2 4 No Connection
3 GND 4 Open 5 Ground
5 Power 6 Ground 6 Ground
7 Switch 1 8 Switch 2 7 Ground
8 Ground
Right Joystick: 9 No Connection
10 Ground
1 Position 3 2 Position 4 11 Ground
3 Ground 4 Open 12 Ground
5 Power 6 Ground 13 Horizontal Sync
7 Switch 3 8 Switch 4 14 Vertical Sync
15 No Connection