FIELD GUIDESource-led reference
Port & Cable

Cable selection lesson

Read a cable label in separate layers

Read identity, task/mode, power, direction and environment separately. A label can document one layer while leaving the others unknown.

Applies to: Original code-native teaching diagrams and bounded primary-source paraphrases; no sampled label authentication.

USB-C power and data are separate. Original teaching schematic; no specimen or measured test.
Original text-only example of separate USB-IF capability fields, not a reproduced logo or an inspected cable. 240W: Cable power capability class. Does not establish: A phone or laptop will draw 240W, or that a display mode is supported. USB 5Gbps: A separate data-rate label. Does not establish: Every attached host, hub and device supports that rate. Compliance updates — Cables and Connectors
An active extension needs a topology. Original teaching schematic; no specimen or measured test.
Teaching text drawn from exact product identity and specification, not copied manufacturer printing. USB3AAEXT10M / 10m: This named extension and cable length. Does not establish: A universal maximum for all USB cables. ACTIVE: The documented extension has powered circuitry. Does not establish: It automatically supplies any peripheral's power demand or supports native DisplayPort. USB3AAEXT10M datasheet
SOURCE and DISPLAY are installation instructions. Original teaching schematic; no specimen or measured test.
Original diagram of the named StarTech DP AOC label roles. No certification logo or connector geometry reproduced. SOURCE → DISPLAY: Required orientation for this unidirectional cable. Does not establish: That its identical DP plugs can be swapped freely. DP1.4 / AOC / 30m: Named protocol/construction/length fields. Does not establish: Every 8K mode is uncompressed; the documented 8K60 example uses DSC. 8K-AOC-30M-DP-CABLE product documentation
Category, shielding and jacket answer different questions. Original teaching schematic; no specimen or measured test.
Original technical-field teaching label for Belden 10GX S/FTP LSZH series; not an observed jacket or authentication check. CAT6A / S/FTP: Stated category and individual-pair foil plus overall braid construction. Does not establish: An installed channel has passed certification or is correctly bonded. 26AWG / LSZH: Conductor-size and jacket-description fields. Does not establish: Plenum/riser approval; this sheet explicitly lists indoor, not riser or plenum. 10GX S/FTP LSZH Patch Cords technical data
Fiber, polish and organization stay separate. Original teaching schematic; no specimen or measured test.
Teaching label based on the existing Corning LC UPC OS2 uniboot series profile; baseline source bindings reused, no fresh specimen inspection. LC UPC: Connector form and endface-polish description for the documented series. Does not establish: An APC endface can be mated to it. OS2 / DUPLEX: Single-mode fiber category and two-fiber organization. Does not establish: A particular wavelength, module coding, Tx/Rx map or optical loss budget has passed. Two-Fiber Patch Cords — LAN-3921-AEN · Fiber Polarity Basics for Duplex Applications
An RF family is not an attenuation specification. Original teaching schematic; no specimen or measured test.
Original data-card label for the exact Amphenol RG316 assembly, not manufacturer artwork or actual printing. 135101-01-12.00: Exact 305mm SMA-plug/RG316 assembly. Does not establish: Every similar SMA lead has the same performance. 50Ω / 3GHz: Published characteristic impedance and maximum-frequency fields. Does not establish: DC resistance, insertion loss or RF power at an arbitrary operating frequency. 135101-01-12.00 — SMA RG316 cable assembly
TRS does not choose the signal for you. Original teaching schematic; no specimen or measured test.
Original technical-field label for Hosa HSS series; no physical marking inspection. HSS / TRS: Named balanced phone-jack interconnect series. Does not establish: That any TRS jack carries balanced mono; a jack may have a different assignment. 24AWG ×2 / shield: The documented two signal conductors and spiral shield. Does not establish: Speaker-power cable, stereo channel count or phantom-power approval. HSS-000 Pro Balanced Interconnect
Four poles, four cores and wiring are separate. Original teaching schematic; no specimen or measured test.
Original technical-field label for CORDIAL CPL5LL4; no manufacturer artwork or terminal map reproduced. CPL5LL4 / 5m: Exact listed variant in the CPL LL4 family. Does not establish: Every product with LL in its name has the same assignment. 4-POLE / 4 CORES: The documented speakON shell poles and cable-core count. Does not establish: An amplifier's bridge/bi-amp wiring or permitted speaker load. CPL LL4 speaker cable product page · Speaker cable with speakON plug operating instructions

Start with identity

Match the complete manufacturer/model and selected length to the source. The eight illustrated labels below are teaching graphics assembled from documented fields; they are not specimens, authentic certification logos or evidence of actual printing.

Compliance updates — Cables and Connectors · USB3AAEXT10M datasheet · 8K-AOC-30M-DP-CABLE product documentation · 10GX S/FTP LSZH Patch Cords technical data · Two-Fiber Patch Cords — LAN-3921-AEN · Fiber Polarity Basics for Duplex Applications · 135101-01-12.00 — SMA RG316 cable assembly · HSS-000 Pro Balanced Interconnect · CPL LL4 speaker cable product page · Speaker cable with speakON plug operating instructions

A mark establishes only its stated layer

A cable power label is not a data/video guarantee; a category is not an installed-channel test; an arrow may restrict installation direction. Jacket terms are separate from link capability and from approval for a building route.

Compliance updates — Cables and Connectors · USB3AAEXT10M datasheet · 8K-AOC-30M-DP-CABLE product documentation · 10GX S/FTP LSZH Patch Cords technical data · Two-Fiber Patch Cords — LAN-3921-AEN · Fiber Polarity Basics for Duplex Applications · 135101-01-12.00 — SMA RG316 cable assembly · HSS-000 Pro Balanced Interconnect · CPL LL4 speaker cable product page · Speaker cable with speakON plug operating instructions

When the mark is missing or unclear

Record the exact visible text and endpoint roles. If you cannot establish the required task, keep that field unknown and obtain an exact product statement. Do not award certification from appearance or cable color.

Compliance updates — Cables and Connectors · USB3AAEXT10M datasheet · 8K-AOC-30M-DP-CABLE product documentation · 10GX S/FTP LSZH Patch Cords technical data · Two-Fiber Patch Cords — LAN-3921-AEN · Fiber Polarity Basics for Duplex Applications · 135101-01-12.00 — SMA RG316 cable assembly · HSS-000 Pro Balanced Interconnect · CPL LL4 speaker cable product page · Speaker cable with speakON plug operating instructions

Your next useful observation

Record the exact model, selected length, both endpoint roles and required application. Keep undocumented properties unknown.

Keep these limits

  • Source-scoped examples only. No actual cable sample, link, power, qualification or certification test was performed.
Source documents, revisions and inspection methods

Compliance updates — Cables and Connectors

USB-IF · Update listing through July 2025 in returned text; IDs 147/151 and 140/143

USB-C Cable Logo Requirements and Clarification; power marking 60W/240W

Inspected 2026-10-23 by public_page. AI primary-source text inspection; not independent human review or hardware measurement

Power/data logo meaning, without reproducing protected logos or claiming authentic sample certification.

Read the original source

USB3AAEXT10M datasheet

StarTech.com · Revision not stated; three-page PDF

pp. 1–3: overview, features, power and connector tables

Inspected 2026-10-23 by public_pdf_text. AI primary-source text inspection; not independent human review or hardware measurement

Exact 10m active USB-A extension; USB3 Gen1, USB2/1.1 fallback, included power adapter. Adapter output is not a guaranteed peripheral allocation.

Read the original source

8K-AOC-30M-DP-CABLE product documentation

StarTech.com · Revision not stated

Live official page: Product ID and Overview; expanded Product Description > Hybrid AOC Construction, Full-Featured DisplayPort1.4, Flexible Plenum-Rated Cabling and Source/Display direction note. Inspected2026-10-23 in browser after web open exposed navigation only.

Inspected 2026-10-23 by public_page. AI-assisted reading of live official browser DOM/AX product content after expanding Product Description; no hardware or independent human review.

Exact 30m DP hybrid AOC; separate DSC and uncompressed conditions. Manufacturer plenum wording does not approve a particular installation.

Read the original source

10GX S/FTP LSZH Patch Cords technical data

Belden · Revision 0.252, 2026-03-25

pp. 1–2: construction, current and indoor-not-riser/plenum; p. 2 variant CAE4100003M; p. 4 history

Inspected 2026-10-23 by public_pdf_text. AI primary-source text inspection; not independent human review or hardware measurement

Named shielded patch-cord series; exact 3m variant within the series. Type3/4 language stays documentary, outside af/at numerical solver.

Read the original source

Two-Fiber Patch Cords — LAN-3921-AEN

Corning · Revision not recorded

Revision 2025-03-03; PDF pages 2 and 6 visually inspected. Page 2: reverse-polarity uniboot; page 6: LC duplex Jumper in a Box order options.

Inspected 2026-10-08 by public_pdf_text. AI-assisted primary-source text inspection and visual review of the specified PDF pages; independent review pending.

Selected LC/LC OM4 PC duplex and LC UPC/LC UPC OS2 reverse-polarity uniboot options only.

Read the original source

Fiber Polarity Basics for Duplex Applications

Fluke Networks · Revision not recorded

Published 2025-11-12; End-to-End Duplex Polarity and How to Check Duplex Polarity text inspected.

Inspected 2026-10-08 by public_page. AI-assisted inspection of the specified public text; independent review pending.

Two-fiber Tx-to-Rx continuity requirement and the warning against looking into an optical port.

Read the original source

135101-01-12.00 — SMA RG316 cable assembly

Amphenol RF · Page revision not stated; customer drawing listed 2026-05-07

Product Specifications: cable type/configuration, 305mm, 50ohm, 3GHz, IP Not Rated; related document list

Inspected 2026-10-23 by public_page. AI primary-source text inspection; not independent human review or hardware measurement

Exact assembly. No insertion-loss curve, power rating or full mate SKU inspected; those remain unknown.

Read the original source

HSS-000 Pro Balanced Interconnect

Hosa · Page revision not stated

Product description and Connectors/Conductors/Shield fields

Inspected 2026-10-23 by public_page. AI primary-source text inspection; not independent human review or hardware measurement

Named HSS series balanced phone-jack use; selected length and endpoint operating levels remain separate.

Read the original source

CPL LL4 speaker cable product page

CORDIAL · Page revision not stated

Product information, technical data and lengths: CPL5LL4,11002

Inspected 2026-10-23 by public_page. AI primary-source text inspection; no hardware test

Four-pole Neutrik speakON ends, four copper cores, CLS425/PVC; exact5m variant.

Read the original source

Speaker cable with speakON plug operating instructions

CORDIAL · Version1.1/2024,Item15704

English printed pp.28–33: product list, safety, improper use, damage and maintenance

Inspected 2026-10-23 by public_pdf_text. AI primary-source text inspection; no hardware test

Professional speaker-cable safe handling. Do not use as mains cable or connect under load; no installation or modification procedure is granted.

Read the original source

Source-documented education. Hardware behavior and independent human review have not been performed for these examples.

Draft a correction · More connection lessons

Display direction and cable markings

Check the documented HDMI-to-USB-C direction and read cable power, data and direction claims separately.

Read the complete source-scoped study and next observation →