E318 · Source-scoped pinout variants

6-pin Mini-DIN (PS/2 form) engineering reference

Named wiring from the pinout research; connector shape alone does not establish capabilities.

Open field note Source trail

Source checked · no independent review claimed · Fabrication approved: no

6-pin Mini-DIN (PS/2) engineering reference original orientation schematic — Original pinout diagram; read the exact variant and view below. Not to scale.

Contact count

Not asserted

Source-scoped connector interface

Mating boundary

Shape is not the verdict.

Check the exact device and mating connector.

Orientation

How to read this profile

Read the exact variant view convention. Schematic layouts do not establish physical positions.

Source-scoped identification facts

Each value retains its exact example, role and measurement axis. Facts from different parts must not be combined into an invented component.

Documented examples; not a mating drawing or compatibility approval
Nominal contacts	6S089Nominal contact count; some implementations may omit populated positions. It is not a wiring map.
Dimensions / axis	12.83 mm manufacturer-labelled connector height (5749266-1); 16.51 mm manufacturer-labelled product length (5749266-1); 14 mm manufacturer-labelled product width (5749266-1)S907Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 5749266-1. Documented role: socket. Catalog6.5mm centerline lacks contact-axis interpretation; withheld from normalized pitch.; 5749263-1 page swaps height/length relative to6/8position pages; values retained exactly labelled, not silently corrected. Drawing comparison remains needed.
Connector role	socket (5749266-1)S907Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 5749266-1. Documented role: socket. Catalog6.5mm centerline lacks contact-axis interpretation; withheld from normalized pitch.; 5749263-1 page swaps height/length relative to6/8position pages; values retained exactly labelled, not silently corrected. Drawing comparison remains needed.
Keying / polarization	Mating polarization; right-angle boardmount receptacle (5749266-1)S907Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 5749266-1. Documented role: socket. Catalog6.5mm centerline lacks contact-axis interpretation; withheld from normalized pitch.; 5749263-1 page swaps height/length relative to6/8position pages; values retained exactly labelled, not silently corrected. Drawing comparison remains needed.
Manufacturer	TE Connectivity (5749266-1)S907Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 5749266-1. Documented role: socket. Catalog6.5mm centerline lacks contact-axis interpretation; withheld from normalized pitch.; 5749263-1 page swaps height/length relative to6/8position pages; values retained exactly labelled, not silently corrected. Drawing comparison remains needed.
Series	Circular Mini DIN (5749266-1)S907Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 5749266-1. Documented role: socket. Catalog6.5mm centerline lacks contact-axis interpretation; withheld from normalized pitch.; 5749263-1 page swaps height/length relative to6/8position pages; values retained exactly labelled, not silently corrected. Drawing comparison remains needed.
Exact part / implementation	5749266-1 (5749266-1)S907Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 5749266-1. Documented role: socket. Catalog6.5mm centerline lacks contact-axis interpretation; withheld from normalized pitch.; 5749263-1 page swaps height/length relative to6/8position pages; values retained exactly labelled, not silently corrected. Drawing comparison remains needed.

Not recorded: Positions / cavity span, Populated contacts, Contact rows, Contact pitch, Contact gender / arrangement, Mounting, Coupling / latch, Shell / form, Recorded markings, View convention. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.

Recorded variant and source limits

Check the exact device manual before wiring or applying power.
IBM PS/2 keyboard and auxiliary-device (mouse) connectors, 6-pin miniature DIN: Contact numbers from IBM's table; no face drawing used.
IBM PS/2 Model 25 keyboard (J1) and pointing-device (J2) connectors: Mini-DIN contact numbers 1-6. Spatial layout is not transferred; IBM refers pin numbering to its Keyboard section figure.
PS/2-style keyboard mini-DIN as tabulated in Atmel AVR313: Mini-DIN contact numbers 1-6. Spatial layout is not transferred; IBM refers pin numbering to its Keyboard section figure.
SGI O2 keyboard and mouse ports: Mini-DIN contact numbers 1-6. Spatial layout is not transferred; IBM refers pin numbering to its Keyboard section figure.

Report a correction to these facts →

Pins & wiring

Pinout

Choose the exact wiring. Pin numbers follow its stated view; a schematic does not establish physical positions. Check your exact device before wiring.

Dark pinout view

What the status labels mean

Confirmed: Recorded research passes agree within this variant; this is not independent human review or hardware validation.
Single source: Only one underlying document, or one pass, supports this assignment.
Device-specific: Supported for the named equipment or wiring only. Check your device’s manual.
Unverified: Missing or conflicting evidence. Do not wire from this row.
Not connected: The source explicitly says NC, no contact or no pin for this wiring.

Wiring variantIBM PS/2 keyboard and auxiliary-device (mouse) connectors, 6-pin min…

IBM PS/2 keyboard and auxiliary-device (mouse) connectors, 6-pin miniature DIN

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Contact numbers from IBM's table; no face drawing used.

P108 PS/2 6-pin Mini-DIN — **Agree** (1 data, 3 ground, 4 +5 V, 5 clock; 2 and 6 reserved / not connected) — A: IBM PS/2 Hardware Interface Technical Reference. B: IBM PS/2 Model 25, Atmel AVR313 and SGI O2.
IBM: 'The signals and voltages are the same for both connectors.' Signals are open-collector, pulled to 5 Vdc through 10 kilohm (p. 15).
Vendor uses of pins 2/6 (e.g. combined keyboard/mouse ports or splitter cables) were not established.
No later motherboard manual was checked in this pass.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

IBM PS/2 keyboard and auxiliary-device (mouse) connectors, 6-pin miniature DIN — source-scoped contact map
Pin	Signal	What it does	Status
1	Data	Signal conductor. Pair, polarity and direction follow this named wiring.	Device-specific Sources
2	Reserved	Reserved; no general-purpose wiring is established.	Device-specific Sources
3	Ground	Ground reference and return.	Device-specific Sources
4	+5 Vdc	Power connection (+5 Vdc). Check the specified supply.	Device-specific Sources
5	Clock	Clock or clock-control connection, as named by this source.	Device-specific Sources
6	Reserved	Reserved; no general-purpose wiring is established.	Device-specific Sources

Sources (1)

S722 · IBM · Personal System/2 Hardware Interface Technical Reference
First Edition (May 1988) · Keyboard and Auxiliary Device Controller (Type 1) section, printed p. 15, Figure 11 'Keyboard and Auxiliary Device Connector Information'

IBM PS/2 Model 25 keyboard (J1) and pointing-device (J2) connectors

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Mini-DIN contact numbers 1-6. Spatial layout is not transferred; IBM refers pin numbering to its Keyboard section figure.

P108 PS/2 6-pin Mini-DIN — **Agree** (1 data, 3 ground, 4 +5 V, 5 clock; 2 and 6 reserved / not connected) — A: IBM PS/2 Hardware Interface Technical Reference. B: IBM PS/2 Model 25, Atmel AVR313 and SGI O2.
IBM gives one table for both J1 and J2 and names the lines 'Keyboard Data/Clock'.
Use of pins 2/6 for a second device (combined keyboard/mouse splitters, some laptops) was not established from a primary document.
Other uses of the 6-pin Mini-DIN shell were not researched.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

IBM PS/2 Model 25 keyboard (J1) and pointing-device (J2) connectors — source-scoped contact map
Pin	Signal	What it does	Status
1	Keyboard Data (+KBD DATA)	Signal conductor. Pair, polarity and direction follow this named wiring.	Device-specific Sources
2	Not Connected	Not connected or absent in this named wiring.	Not connected Sources
3	Ground	Ground reference and return.	Device-specific Sources
4	+5 Vdc	Power connection (+5 Vdc). Check the specified supply.	Device-specific Sources
5	Keyboard Clock (+KBDCLK)	Clock or clock-control connection, as named by this source.	Device-specific Sources
6	Not Connected	Not connected or absent in this named wiring.	Not connected Sources

Sources (1)

S723 · IBM · Personal System/2 Model 25 Technical Reference
First Edition (June 1987) · Section 1 System Board, Figure 1-120 'Keyboard Connector and Pointing Device' (J1, J2); Section 4 Keyboard, Figure 4-15 'Keyboard Cable Connectors' (DIN connector pins)

PS/2-style keyboard mini-DIN as tabulated in Atmel AVR313

View and evidence limits

Mini-DIN contact numbers 1-6. Spatial layout is not transferred; IBM refers pin numbering to its Keyboard section figure.

P108 PS/2 6-pin Mini-DIN — **Agree** (1 data, 3 ground, 4 +5 V, 5 clock; 2 and 6 reserved / not connected) — A: IBM PS/2 Hardware Interface Technical Reference. B: IBM PS/2 Model 25, Atmel AVR313 and SGI O2.
Use of pins 2/6 for a second device (combined keyboard/mouse splitters, some laptops) was not established from a primary document.
Other uses of the 6-pin Mini-DIN shell were not researched.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

PS/2-style keyboard mini-DIN as tabulated in Atmel AVR313 — source-scoped contact map
Pin	Signal	What it does	Status
1	Data	Signal conductor. Pair, polarity and direction follow this named wiring.	Confirmed Sources
2	nc	Not connected or absent in this named wiring.	Not connected Sources
3	GND	Ground reference and return.	Confirmed Sources
4	+5V	Power connection (+5V). Check the specified supply.	Confirmed Sources
5	Clock	Clock or clock-control connection, as named by this source.	Confirmed Sources
6	nc	Not connected or absent in this named wiring.	Not connected Sources

Sources (2)

S724 · Atmel (now Microchip Technology) · AVR313: Interfacing the PC AT Keyboard (application note)
Rev. 1235B-AVR-05/02 · p. 2, Table 1, column '6-pin Mini DIN PS2 Style Female at Computer'
S722 · IBM · Personal System/2 Hardware Interface Technical Reference
First Edition (May 1988) · Keyboard and Auxiliary Device Controller (Type 1) section, printed p. 15, Figure 11 'Keyboard and Auxiliary Device Connector Information'

SGI O2 keyboard and mouse ports

View and evidence limits

Mini-DIN contact numbers 1-6. Spatial layout is not transferred; IBM refers pin numbering to its Keyboard section figure.

P108 PS/2 6-pin Mini-DIN — **Agree** (1 data, 3 ground, 4 +5 V, 5 clock; 2 and 6 reserved / not connected) — A: IBM PS/2 Hardware Interface Technical Reference. B: IBM PS/2 Model 25, Atmel AVR313 and SGI O2.
Use of pins 2/6 for a second device (combined keyboard/mouse splitters, some laptops) was not established from a primary document.
Other uses of the 6-pin Mini-DIN shell were not researched.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

SGI O2 keyboard and mouse ports — source-scoped contact map
Pin	Signal	What it does	Status
1	KEYBOARD/MOUSE DATA	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
2	(Reserved)	Reserved; no general-purpose wiring is established.	Confirmed Sources
3	GROUND	Ground reference and return.	Confirmed Sources
4	KEYBOARD/MOUSE POWER (+5V)	Power connection (KEYBOARD/MOUSE POWER (+5V)). Check the specified supply.	Single source Sources
5	KEYBOARD/MOUSE CLOCK	Clock or clock-control connection, as named by this source.	Single source Sources
6	(Reserved)	Reserved; no general-purpose wiring is established.	Confirmed Sources

Sources (2)

S725 · Silicon Graphics · Silicon Graphics O2 Workstation Hardware Reference Guide
Document Number 007-3275-004 (HTML edition) · Appendix A, Table A-4 'Keyboard and Mouse Ports (6-pin MINIDIN) Pinout Assignments'
S722 · IBM · Personal System/2 Hardware Interface Technical Reference
First Edition (May 1988) · Keyboard and Auxiliary Device Controller (Type 1) section, printed p. 15, Figure 11 'Keyboard and Auxiliary Device Connector Information'

Unknowns stay unknown.

Check the exact device manual before wiring or applying power.

Your next step

Use the detail without guessing past its limits.

Read the connector field note Recognition clues and practical checks.Work through a connection Keep exact equipment and cable requirements separate.

Source trail

Claims and sources

C803Rsource checked

IBM PS/2 keyboard and auxiliary-device (mouse) connectors, 6-pin miniature DIN: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

IBM · Personal System/2 Hardware Interface Technical Reference ↗
Keyboard and Auxiliary Device Controller (Type 1) section, printed p. 15, Figure 11 'Keyboard and Auxiliary Device Connector Information'; Parallel Port (Type 1) section, printed p. 8, Figure 9 'Parallel Port Connector Signal and Pin Assignments'; Serial Port Controller (Types 1 and 2) section, printed p. 23, Figure 21 'Serial Port Connector Signal and Pin Assignments' · Source scope and unresolved evidence are preserved in the engineering variant.

C803Ssource checked

IBM PS/2 Model 25 keyboard (J1) and pointing-device (J2) connectors: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

IBM · Personal System/2 Model 25 Technical Reference ↗
Section 1 Parallel Port, 'Connector', Figure 1-115 'Parallel Port Connector'; Section 1 Serial Port, 'Connector', Figure 1-109 'Serial Port Connector'; Section 1 System Board, Figure 1-120 'Keyboard Connector and Pointing Device' (J1, J2); Section 4 Keyboard, Figure 4-15 'Keyboard Cable Connectors' (DIN connector pins) · Source scope and unresolved evidence are preserved in the engineering variant.

C803Tsource checked

PS/2-style keyboard mini-DIN as tabulated in Atmel AVR313: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Atmel (now Microchip Technology) · AVR313: Interfacing the PC AT Keyboard (application note) ↗
p. 2, Table 1 'AT Keyboard Connector Pin Assignments', column 'DIN41524, Female at Computer, 5-pin DIN 180 degrees'; p. 2, Table 1, column '6-pin Mini DIN PS2 Style Female at Computer' · Source scope and unresolved evidence are preserved in the engineering variant.

C803Usource checked

SGI O2 keyboard and mouse ports: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Silicon Graphics · Silicon Graphics O2 Workstation Hardware Reference Guide ↗
Appendix A, Table A-1 'Serial Port Pinout Assignments'; Appendix A, Table A-2 'Parallel Port (IEEE 1284-C) Pinout Assignments'; Appendix A, Table A-4 'Keyboard and Mouse Ports (6-pin MINIDIN) Pinout Assignments' · Source scope and unresolved evidence are preserved in the engineering variant.

4 source records support this profile. No independent engineering review or hardware validation is claimed.

Evidence behind this page

Scope first. Source second. Approval separate.

4 linked sources · 4 scoped claims · 0 sources with inspection/access flags.

Page scope: Original schematic; not to scale and not fabrication approval.

Assessment 2026-10-22 · earliest scheduled source review 2027-01-18. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 4 source scopes, access limits and dates

S722 · Personal System/2 Hardware Interface Technical Reference

IBM · Unclassified publisher domain · inspected 2026-10-20 · due 2027-01-18

Within inspection window

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

Not established / limitations: Source scope and unresolved evidence are preserved in the engineering variant.

Locator: Keyboard and Auxiliary Device Controller (Type 1) section, printed p. 15, Figure 11 'Keyboard and Auxiliary Device Connector Information'; Parallel Port (Type 1) section, printed p. 8, Figure 9 'Parallel Port Connector Signal and Pin Assignments'; Serial Port Controller (Types 1 and 2) section, printed p. 23, Figure 21 'Serial Port Connector Signal and Pin Assignments'

S723 · Personal System/2 Model 25 Technical Reference

IBM · Unclassified publisher domain · inspected 2026-10-21 · due 2027-01-19

Within inspection window

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

Not established / limitations: Source scope and unresolved evidence are preserved in the engineering variant.

Locator: Section 1 Parallel Port, 'Connector', Figure 1-115 'Parallel Port Connector'; Section 1 Serial Port, 'Connector', Figure 1-109 'Serial Port Connector'; Section 1 System Board, Figure 1-120 'Keyboard Connector and Pointing Device' (J1, J2); Section 4 Keyboard, Figure 4-15 'Keyboard Cable Connectors' (DIN connector pins)

S724 · AVR313: Interfacing the PC AT Keyboard (application note)

Atmel (now Microchip Technology) · Manufacturer / product-owner domain · inspected 2026-10-21 · due 2027-01-19

Within inspection window

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

Not established / limitations: Source scope and unresolved evidence are preserved in the engineering variant.

Locator: p. 2, Table 1 'AT Keyboard Connector Pin Assignments', column 'DIN41524, Female at Computer, 5-pin DIN 180 degrees'; p. 2, Table 1, column '6-pin Mini DIN PS2 Style Female at Computer'

S725 · Silicon Graphics O2 Workstation Hardware Reference Guide

Silicon Graphics · Unclassified publisher domain · inspected 2026-10-21 · due 2027-01-19

Within inspection window

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

Not established / limitations: Source scope and unresolved evidence are preserved in the engineering variant.

Locator: Appendix A, Table A-1 'Serial Port Pinout Assignments'; Appendix A, Table A-2 'Parallel Port (IEEE 1284-C) Pinout Assignments'; Appendix A, Table A-4 'Keyboard and Mouse Ports (6-pin MINIDIN) Pinout Assignments'

Trace 4 claims to their source records

C803R · P108

IBM PS/2 keyboard and auxiliary-device (mouse) connectors, 6-pin miniature DIN: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S722 · Evidence trail → (private workspace)

C803S · P108

IBM PS/2 Model 25 keyboard (J1) and pointing-device (J2) connectors: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S723 · Evidence trail → (private workspace)

C803T · P108

PS/2-style keyboard mini-DIN as tabulated in Atmel AVR313: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S722 · S724 · Evidence trail → (private workspace)

C803U · P108

SGI O2 keyboard and mouse ports: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S722 · S725 · Evidence trail → (private workspace)

Prepare this page for review →Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.