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Serial Y Cable Pinout  | 
FRONT VIEWThe diagram and key below illustrate the front panel layout of the UDB system. Note that the sliding cover on genuine UDB systems is blank. | |
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1 2.5mm Stereo audio input jack 2 2.5mm Stereo audio output jack 3 2.5mm 2.5mm Microphone jack 4 2.5mm Stereo headphones jack 5 On/Off Power switch 6 Floppy disk drive  | |
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