5: Technical Information
Connectors
Keyboard connector
The keyboard connector at the back of your RM One computer will be
a 6-pin IBM PS/2 style connector. The pin out for the PS/2 style is
the same as the PS/2 mouse. The +5 volts pin is only for use with a
keyboard.
Video Signal Connector
At the back of your RM One computer there is a video connector:
VGA analogue, 15-way DIN in 9-way shell, 3-row D-type.
1 Red (O) 9 Not used
2 Green (O) 10 Digital ground
3 Blue (O) 11 Not used
4 Not used 12 Not used
5 Digital ground 13 Horizontal sync. (O)
6 Red return 14 Vertical sync. (O)
7 Green return Analogue 15 Reserved
8 Blue return grounds
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