Technical Reference, Personal Computer AT

Scope and location

Exact named pinout variant only; not capability or compatibility approval.

Section 1 System Board, 'Keyboard Connector (J22)' table; Section 4, 101/102-Key Keyboard, 'Cabling' table (DIN pins vs SDL pins); Section 4, 84-Key Keyboard, 'Cabling', DIN Connector Pins table

Open the original source

Inspected

2026-10-21

Access

public pdf text

Recorded AI-assisted source inspection; not independent human approval or hardware testing.

Source scope and unresolved evidence are preserved in the engineering variant.

Source inspection is separate from independent technical approval, rights clearance and hardware testing.