Source-linked references / At the bench
Find the distinction.
Keep it beside you.
39 topic references, charts and bench checklists in one index. Open a reference for its Letter and A4 downloads, source notes and limits.
Private review edition. Not wiring instructions, fabrication drawings or electrical replacement approvals.
Visual fieldbook / Letter + A4
See the difference. Keep the limits.
Ten original two-up recognition studies, a clear next check and the source-view register, alongside the inherited 39 field-sheet reference destinations. Print is for bench identification, not physical measuring, wiring or product approval.
Letter PDF ↓ (legacy download held for current evidence review). Current focused printable referencesA4 PDF ↓ (legacy download held for current evidence review). Current focused printable referencesUSB, video & adapters
4 references
HDMI, DisplayPort and LightningSix existing HDMI, DisplayPort and Lightning references with five source-observed studies.Letter + A4 PDF · Sources & limits
Video adapter direction chartFour direction-sensitive paths distinguish active conversion, passive adaptation and source-labelled cabling. Reverse operation needs its own evidence.Letter + A4 PDF · Sources & limitsPC internals, storage & cards
9 references
01 · Memory mediaIs this CFexpress Type A, Type B, or XQD—and will my reader accept it?Letter + A4 PDF · Sources & limits
02 · Storage cablingA SATA drive has a data cable attached. Why is it still not powered?Letter + A4 PDF · Sources & limits
03 · Computer expansionWhy can a physically x16-sized slot operate a PCIe card with x4 or x1 lanes?Letter + A4 PDF · Sources & limits
06 · Internal storageBoth OCuLink and MCIO can serve PCIe connections. Can I swap the cable ends?Letter + A4 PDF · Sources & limits
Camera card and reader chartFive card families and narrowly documented reader examples. A shared outline, familiar brand or version number does not replace the type letter and support list.Letter + A4 PDF · Sources & limits
eSATA and Mini-SAS component rolesSource-scoped external cable and internal board roles; exact Mini-SAS face study deferred.Letter + A4 PDF · Sources & limits
Fan, USB, audio and RGB headersSix existing forms, five source-observed header layouts and source-specific role comparisons.Letter + A4 PDF · Sources & limits
Storage and expansion interfacesSource-observed socket and drive-interface roles with explicit system checks.Letter + A4 PDF · Sources & limits
Storage interface chartFour source-qualified rows keep drive form, transport and named adapter restrictions separate. A fitting connector is not a data-recovery result.Letter + A4 PDF · Sources & limitsPower & appliance connections
9 references
Compact IEC C5/C6 and C7/C8Retained V144 evidence and artwork, reconstructed presentation.Letter + A4 PDF · Sources & limits
IEC C13/C14, C15/C16 and C19/C20C13/C14, C15/C16, C19/C20 manufacturer examples and unknowns.Letter + A4 PDF · Sources & limits
IEC C17 cord connectors and C18 inletsTwo source-observed studies; exact cord assembly and inlet roles, retention and ratings kept separate.Letter + A4 PDF · Sources & limits
M12 power coding and cable endsSource-qualified assembly-end recognition; three physical studies, one concept and six reference checks.Letter + A4 PDF · Sources & limits
Main and auxiliary PC powerATX cable types, PCIe role and exact housing scope; six source-qualified reference checks.Letter + A4 PDF · Sources & limits
NEMA cord ends: plug and cord connectorNamed component roles and ratings; the socket example is not a fixed wall outlet.Letter + A4 PDF · Sources & limits
PC power role chartFour power-connector labels are separated by documented application and example scope. This is a reading chart, not a pinout or installation guide.Letter + A4 PDF · Sources & limits
Peripheral and drive powerSource-qualified legacy LP4, miniature floppy, SATA, Slimline, SAS and Micro SATA comparison.Letter + A4 PDF · Sources & limits
Power roles and generationsCPU, PCIe, original and revised power identities; explicit exact-image gaps.Letter + A4 PDF · Sources & limitsSmall parts & repair
3 references
Barrel connector measurement chartThree named Tensility examples show why nominal outside diameter and bore do not settle exposed barrel length. Values are drawing-specific, not a fit gauge.Letter + A4 PDF · Sources & limits
FPC / FFC and wire-to-board orientationSix source-qualified entries; contact side, entry axis, actuator and termination.Letter + A4 PDF · Sources & limits
Miniature connector family chartSeven family and named-part rows separate pitch, component role and the next identification check. Typical pitch is not a universal part specification.Letter + A4 PDF · Sources & limitsNetwork, fiber & RF
11 references
04 · Network identificationIs this eight-contact modular jack Ethernet, a serial console, or a PoE port?Letter + A4 PDF · Sources & limits
05 · Pluggable networkCan an SFP28 optic or DAC be used in an SFP+ host because the cages resemble each other?Letter + A4 PDF · Sources & limits
Antenna connector identityManufacturer-scoped forms, component roles and FAKRA color-code names without vehicle-function inference.Letter + A4 PDF · Sources & limits
Coaxial panel componentsSix named examples across four forms, three exterior studies and two concepts.Letter + A4 PDF · Sources & limits
Compact coaxial roles and limitsSix source-qualified rows across four forms with three original physical studies.Letter + A4 PDF · Sources & limits
Exact compact coaxial componentsNamed components, explicit viewpoints and unresolved source conflicts.Letter + A4 PDF · Sources & limits
Fiber recognition, polish and polarityEight source-qualified examples across six fiber forms, with original named-series studies.Letter + A4 PDF · Sources & limits
Network and industrial componentsFour existing references with five source-observed studies, component roles and exact exclusions.Letter + A4 PDF · Sources & limits
Optical audio and compact fiberSeven source-qualified examples across five forms, four exterior studies and two concepts.Letter + A4 PDF · Sources & limits
RF coax: shell, contact and mountingSix named RF examples with explicit source scope, original studies and printable guides.Letter + A4 PDF · Sources & limits
RF revision and contact rolesHistorical component identity, source disagreement and unresolved exact geometry.Letter + A4 PDF · Sources & limitsAudio & legacy
3 references
Audio contacts and equipment rolesSeven source-qualified examples distinguish physical contacts, switches and equipment functions.Letter + A4 PDF · Sources & limits
DE-9, DB25 and Mini-DINFour source-observed component studies; form, view, equipment service and replacement kept separate.Letter + A4 PDF · Sources & limits
DIN/MIDI, multipole XLR and speakONFive existing references with six source-observed studies; DIN, XLR variants and loudspeaker boundaries.Letter + A4 PDF · Sources & limitsStart from an unfamiliar shape? Browse the visual atlas. Need to check a connection? Start with your task. Read how the evidence is scoped before applying a reference.
Six focused decision references
Source-linked Letter and A4 sheets separate visible clues, exact equipment requirements and missing evidence.
- USB: form, modes and markings
What does this USB connector or cable label actually establish?
- Displays: form and signal direction
Which direction and supported signal path does the equipment document?
- Audio: contacts and port roles
What do the visible rings and the device manual tell you separately?
- Storage: media and host interfaces
Does physical fit establish a supported storage path?
- Ethernet: identity, link and PoE
What is the port, what is the data link, and is power required?
- Power look-alikes: stop and verify
Which missing fact prevents a safe, supported cable or supply choice?