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Atari ST family connectors pinouts

• ST power supply
• ST floppy power supply


• ST Monitor out
• TT Monitor out
• Falcon Monitor out


• ST joystick / mouse
• STe enhanced joystick
• MIDI In and Out
• ST Modem 1
• ST Serial 1
• Falcon Serial
• LAN
• ST parallel
• ST floppy
• Floppy internal
• ROM port
• ST/TT DMA ACSI port
• MEGA ST/TT keyboard
• TT SCSI port
• Falcon DSP port

Atari ST video out

DIN 13 female at computer side

1	Audio out		5	Audio In		9	Horizontal Sync
2	Composite Sync	Not used on STF and MEGA ST	6	Green		10	Blue
3	General purpose output	Clock select on STE	7	Red		11	Monochrome out
4	Monochrome detect	Clock In on STE	8	+12 V switch	Reserved on STE	12	Vertical sync
			13	GND