Contact arrangement is a visual clue. Signal assignment still needs device documentation.
P019 · Connector3.5 mm TRS connector≠
P020 · Connector3.5 mm TRRS connector
How they differ
TRS and TRRS describe different conductive plug sections. TRRS wiring can still differ between CTIA and OMTP.
TRS has tip, ring and sleeve conductive sections; compare the disconnected plug, not hidden socket terminals. S022
CTIA and OMTP swap microphone/ground roles within the TRRS interface. A matching shell and count do not choose the assignment. S844
The cited switched TRRS jack’s termination/switching features are distinct from the plug’s mating sections. S527
What this comparison does not establish: Focusrite’s named Solo headphone requirement is device-specific; do not turn one device’s warning into universal headset compatibility. S528
Choose the next check
Record the exact device/headset audio role and CTIA/OMTP support before selecting an adapter.
Source-scoped form facts; counts, variants and unknowns are distinct
Field
3.5 mm TRS connector
3.5 mm TRRS connector
Type
Connector
Connector
Family
Audio
Audio
Shape
round
round
Nominal contacts
3S022phone plug physical contact sequence; nominal engineering count, not automatically positions, population or a device wiring map. phone plug physical contact sequence
4S844 · S844four-position headset-style phone plug physical sequence; nominal engineering count, not automatically positions, population or a device wiring map. four-position headset-style phone plug physical sequence
Positions / cavity span
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
4 (Claim C020B)S844Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Contact-count and assignment-family distinction only; not a device compatibility claim
Contact rows
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Connector role
plug; plug (Neutrik NTP3RC)S022 · S022 · S523Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. phone plug physical contact sequence Exact NTP3RC component role and exterior; no channel mapping or device compatibility.
plug; socket (Switchcraft 35RASMT8CHNTRX)S844 · S844 · S527Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. four-position headset-style phone plug physical sequence Exact switched jack; no inference that four conductors means four PCB terminals or a particular headset wiring scheme.
Key distinction
Three contacts do not, by themselves, describe the signal assignment.
Four matching contacts can still be wired differently.
Illustrations are computer-generated with prior AI visual review; independent technical and rights review pending. A comparison is not a compatibility verdict.
This comparison stays within one evidence layer.
All selected records are Connector records. Similar layer does not mean compatible, interchangeable or safe to mate.
Families represented: Audio
T05 · Document the actual path
TRS/TRRS headset connection
Count the conductive plug sections, then establish the device’s audio role and wiring convention. TRRS shape does not choose CTIA versus OMTP microphone/ground assignment.
Configuration: four conductors, horizontal PC/surface mount, jack; Electrical: TRRS (Tip/Ring Switch). · Revision not recorded · Recorded source inspection 2026-10-11. Named four-conductor jack and switching description only; no CTIA/OMTP assignment or terminal-count inference. Raw source files are not bundled; linked observation and locator retained.
Headphone Output and Speaker Outputs sections; page update 16-Jul-2026. · Revision not recorded · Recorded source inspection 2026-10-11. Named fourth-generation Solo only. Headphone versus balanced line-output role and TS/TRRS headphone warning; not universal device support. New scope on an already catalogued URL, not a new unique document. Raw source files are not bundled; linked observation and locator retained.
Mechanical table: four-conductor3.5mm plug, CTIA LRGM and OMTP LRMG; Reference headset test circuits introductory paragraph states MIC/GND exchange. · Web page last updated2026-10-09 UTC as displayed; inspected2026-10-21 · Recorded source inspection 2026-10-21. Android accessory requirements only; not a list of supported devices, universal headset compatibility, switch-button compatibility or jack solder-lug layout. Diagram image files were not separately inspected; prose and mechanical table support these claims.
Three exact-equipment examples
These are source-backed documentation cases. They do not select your equipment, fill the form above, or report a hardware test.
T05-S1 · Supported within the stated documentation scope
A wired headset in a controller’s headset jack
Document a wired gaming-headset path for Xbox Series X|S.
3.5mm headset host
Xbox Wireless Controller (Carbon Black, Xbox Series X|S generation) M05-17
Use the Cloud III wired model and analogue 3.5mm headset connection; its Wireless namesake is a different product.
This example does not transfer controller audio through a PC Bluetooth link or make a CTIA pinout drawing.
Microsoft documents a 3.5mm headset jack on this controller generation; HyperX lists the wired Cloud III with microphone and Xbox Series X|S support. M05-17 · M05-16
Supported within the stated documentation scope: The makers document this headset class, interface and console scope. Actual microphone settings and the selected controller link still belong to the equipment instructions.
Next check: Confirm the wired product label and controller audio settings; retain any platform-specific headset instructions.
Documentation scope only. This is not a hardware test, detected device state, pinout, electrical replacement approval or guarantee for another product/revision.
Current Xbox Series X|S generation, Carbon Black; Compatibility: 3.5mm headset jack; Tech Specs · No document revision shown on inspected page · Inspected 2026-10-22. Selected exact-model documentation only; no hardware test or broader family approval.
Wired Cloud III model (not Wireless); Features: 3.5mm/USB interfaces, microphone, listed Xbox Series X|S compatibility · No document revision shown on inspected page · Inspected 2026-10-22. Selected exact-model documentation only; no hardware test or broader family approval.
The proposed path relies on passive plug adapters rather than a documented microphone interface.
Focusrite identifies Solo4’s headphone socket as stereo TRS output and its microphone input separately. MUYHSMFF separates CTIA headset roles; it does not create an input from an output. M05-18 · M05-20
The proposed path disagrees with the documentation: The proposed microphone role disagrees with the interface documentation. Contact count and physical adaptation do not change signal direction or microphone requirements.
Next check: Use the interface’s documented input type and an exact supported microphone path; do not infer a TRRS microphone contact on a stereo headphone output.
Documentation scope only. This is not a hardware test, detected device state, pinout, electrical replacement approval or guarantee for another product/revision.
Physical and Electrical Characteristics: analogue inputs; headphone output is stereo 6.35mm TRS, separate XLR microphone input · No document revision shown on inspected page · Inspected 2026-10-22. Selected exact-model documentation only; no hardware test or broader family approval.
Wired Cloud III model (not Wireless); Features: 3.5mm/USB interfaces, microphone, listed Xbox Series X|S compatibility · No document revision shown on inspected page · Inspected 2026-10-22. Selected exact-model documentation only; no hardware test or broader family approval.
PDF pp.1-2: separate headphone/microphone jacks; not a two-headphone splitter; microphone impedance caveat; CTIA 4-contact plug · No document revision shown on inspected page · Inspected 2026-10-22. Selected exact-model documentation only; no hardware test or broader family approval.
The laptop and MUYHSMFF are known; the microphone model, wiring and impedance are not.
Dell lists a universal audio jack. StarTech identifies MUYHSMFF as CTIA and warns that some external microphones fail because of device/microphone impedance mismatch. M05-19 · M05-20
Specific information is still missing: The missing microphone evidence prevents a microphone-path conclusion. A CTIA adapter label alone cannot settle bias, wiring or impedance support.
Still needed:
Microphone model, wiring and impedance/bias requirements
Exact host support for that microphone
Next check: Obtain the exact microphone specifications and Dell’s supported-headset/microphone guidance; retain the actual signal role.
Documentation scope only. This is not a hardware test, detected device state, pinout, electrical replacement approval or guarantee for another product/revision.
External ports table: Universal audio jack; Thunderbolt 4/DP Alt Mode ports · No document revision shown on inspected page · Inspected 2026-10-22. Selected exact-model documentation only; no hardware test or broader family approval.
PDF pp.1-2: separate headphone/microphone jacks; not a two-headphone splitter; microphone impedance caveat; CTIA 4-contact plug · No document revision shown on inspected page · Inspected 2026-10-22. Selected exact-model documentation only; no hardware test or broader family approval.
Side exterior of cable plug; longitudinal insulator cues. Band counts are intentional; length, spacing and tip proportions are unmeasured. No size comparison or pinout.
Observe
1. Two insulating bands / three metal sections2. Three insulating bands / four metal sections
Verify before choosing
Bands cannot tell you CTIA/OMTP, microphone support or analog/digital function.
Identification schematic · not to scale · drawing review pending
Layer
Connector
Connector
Key distinction
Three contacts do not, by themselves, describe the signal assignment.
Four matching contacts can still be wired differently.
Nominal contacts
3S022phone plug physical contact sequence; nominal engineering count, not automatically positions, population or a device wiring map. phone plug physical contact sequence
4S844 · S844four-position headset-style phone plug physical sequence; nominal engineering count, not automatically positions, population or a device wiring map. four-position headset-style phone plug physical sequence
Positions / cavity span
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
4 (Claim C020B)S844Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Contact-count and assignment-family distinction only; not a device compatibility claim
Populated contacts
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
4 (35RASMT8CHNTRX)S527Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example 35RASMT8CHNTRX: TRRS PCB jack. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Four conductors do not equal all solder terminals; switched terminals are not inferred as additional TRRS poles. Quantity means mating conductors, not PCB or switched terminals.
Contact rows
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact pitch
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Dimensions / axis
3.5 mm Nominal plug family diameterS022Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. nominal_identifier; phone plug physical contact sequence
3.5 mm Nominal plug family diameterS844Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. nominal_identifier; four-position headset-style phone plug physical sequence
Connector role
plug; plug (Neutrik NTP3RC)S022 · S022 · S523Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. phone plug physical contact sequence Exact NTP3RC component role and exterior; no channel mapping or device compatibility.
plug; socket (Switchcraft 35RASMT8CHNTRX)S844 · S844 · S527Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. four-position headset-style phone plug physical sequence Exact switched jack; no inference that four conductors means four PCB terminals or a particular headset wiring scheme.
Coupling / latch
chuck-type cable strain relief (NTP3RC)S871Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example NTP3RC: 3.5mm three-pole male right-angle cable plug. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Cable clamp range is not plug mating diameter, which remains the existing3.5mm value.
non-locking (35RASMT8CHNTRX)S527Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example 35RASMT8CHNTRX: TRRS PCB jack. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Four conductors do not equal all solder terminals; switched terminals are not inferred as additional TRRS poles.
Keying / polarization
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
4 (Claim C020B)S844Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Contact-count and assignment-family distinction only; not a device compatibility claim
4 (35RASMT8CHNTRX)S527Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example 35RASMT8CHNTRX: TRRS PCB jack. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Four conductors do not equal all solder terminals; switched terminals are not inferred as additional TRRS poles. Quantity means mating conductors, not PCB or switched terminals.
3.5 mm Nominal plug family diameterS022Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. nominal_identifier; phone plug physical contact sequence
3.5 mm Nominal plug family diameterS844Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. nominal_identifier; four-position headset-style phone plug physical sequence
plug; plug (Neutrik NTP3RC)S022 · S022 · S523Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. phone plug physical contact sequence Exact NTP3RC component role and exterior; no channel mapping or device compatibility.
plug; socket (Switchcraft 35RASMT8CHNTRX)S844 · S844 · S527Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. four-position headset-style phone plug physical sequence Exact switched jack; no inference that four conductors means four PCB terminals or a particular headset wiring scheme.
chuck-type cable strain relief (NTP3RC)S871Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example NTP3RC: 3.5mm three-pole male right-angle cable plug. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Cable clamp range is not plug mating diameter, which remains the existing3.5mm value.
non-locking (35RASMT8CHNTRX)S527Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example 35RASMT8CHNTRX: TRRS PCB jack. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Four conductors do not equal all solder terminals; switched terminals are not inferred as additional TRRS poles.
Page scope: Evidence behind the compared records; the editorial comparison still needs separate review.
Assessment 2026-10-22 · earliest scheduled source review 2026-12-30. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.
Scoped support: Exact NTP3RC qualitative exterior and perpendicular cable exit; not scale geometry or contact wiring.
Not established / limitations: Exact NTP3RC qualitative exterior and perpendicular cable exit; not scale geometry or contact wiring. Raw source files are not bundled; linked observation and locator retained.
Locator: Sheet 1 of 1; upper-right side elevation. Revision A, changed 30-Jul-2012.
Scoped support: Named four-conductor jack and switching description only; no CTIA/OMTP assignment or terminal-count inference.
Not established / limitations: Named four-conductor jack and switching description only; no CTIA/OMTP assignment or terminal-count inference. Raw source files are not bundled; linked observation and locator retained.
Scoped support: Named fourth-generation Solo only. Headphone versus balanced line-output role and TS/TRRS headphone warning; not universal device support. New scope on an already catalogued URL, not a new unique document.
Not established / limitations: Named fourth-generation Solo only. Headphone versus balanced line-output role and TS/TRRS headphone warning; not universal device support. New scope on an already catalogued URL, not a new unique document. Raw source files are not bundled; linked observation and locator retained.
Locator: Headphone Output and Speaker Outputs sections; page update 16-Jul-2026.
Android Open Source Project / Google · Unclassified publisher domain · inspected 2026-10-21 · due 2027-01-19
Within inspection window
Scoped support: The two ordered conductor schemes exchange microphone and ground while retaining the same nominal four-conductor plug form.
Not established / limitations: Android accessory requirements only; not a list of supported devices, universal headset compatibility, switch-button compatibility or jack solder-lug layout. Diagram image files were not separately inspected; prose and mechanical table support these claims.
Locator: Mechanical table: four-conductor3.5mm plug, CTIA LRGM and OMTP LRMG; Reference headset test circuits introductory paragraph states MIC/GND exchange.
Trace 5 claims to their source records
C019A · P019
A 3.5 mm TRS plug has three conductive sections: tip, ring and sleeve.
Claim scope: Consumer identification / documented standard or product class only
Neutrik identifies NTP3RC as a three-pole 3.5 mm male audio plug with solder termination; its customer drawing shows the plug axis at a right angle to the cable exit.
Claim scope: Exact NTP3RC component role and exterior; no channel mapping or device compatibility.
Focusrite cautions that TS or TRRS headphones and adapters are unlikely to work properly with the Scarlett Solo 4th Gen headphone output and directs users to TRS headphones and adapters.
Claim scope: Manufacturer warning for the named interface only; not a universal exclusion of TRRS headphones from all audio devices.
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.
