FIELD GUIDESource-led reference
Port & Cable

P129 / FireWire / Guide

Identify a FireWire cable before planning a transfer

Start at both ends, not at an adapter listing.

The useful distinction

List the host port, peripheral port, cable-end forms and separate power arrangements before selecting a transfer workflow.

Claim inspection dates: 2026-10-03 · Independent review pending

Guide note · not an individual product specification

The useful distinction

Understand the requirement.

Separate the four-, six- and nine-contact forms before researching the computer, peripheral and software requirements. [C129A]

Its four-pin form carries data without bus-power contacts. [C129B]

Bounded facts, visible unknowns

Specifications and limits

Identify a FireWire cable before planning a transfer facts and limitations
Documented identificationThe FireWire guide distinguishes four-, six- and nine-pin connector forms. [C129A]
Important distinctionIts four-pin form carries data without bus-power contacts. [C129B]
Verified device listNot included. Check exact device and accessory documentation.
A boundary, not an omission to guess around.

Record the exact device model and the label beside the port. Obtain its manual and the accessory documentation. Keep unknown properties unknown instead of filling them from a visually similar item.

Before you connect

What to check

  1. Record the exact device models and IEEE 1394 port descriptions.
  2. Distinguish a four-pin data-only end from other FireWire forms.
  3. Check operating-system, driver and application requirements in product documentation.
Trace a supported connection class →

What is not established

This field note does not approve a connection, publish a pinout or provide a measured template. Use the linked source scope and the checklist as a documentation starting point.

Your next step

Move from the form to the requirement.

Compare this field note See the differences without assuming interchangeability.Work through a connection Choose your task before deciding on a cable.Explore this evidence trail Inspect the claims and their dependencies. (private workspace)

The source trail

Evidence for this page

AI-assisted inspection is not independent engineering review. Source scope and access limitations are disclosed below. Procedural checklists are editorial requirements, not hardware measurements.

C129ASource checked · pending review

The FireWire guide distinguishes four-, six- and nine-pin connector forms.

C2G / Legrand · FireWire connector guide — physical forms ↗

Locator: 4-Pin Connector; 6-Pin Connector; 9-Pin Connector
Access: public page. Legacy identification text only; no current OS support, converter recommendation or promised transfer rate.

S088: full source recordInspect review dependencies → (private workspace)

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval. Next review due 2027-01-01.

C129BSource checked · pending review

Its four-pin form carries data without bus-power contacts.

C2G / Legrand · FireWire connector guide — physical forms ↗

Locator: 4-Pin Connector; 6-Pin Connector; 9-Pin Connector
Access: public page. Legacy identification text only; no current OS support, converter recommendation or promised transfer rate.

S088: full source recordInspect review dependencies → (private workspace)

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval. Next review due 2027-01-01.

Suggest a correction to this field note →

Evidence behind this page

Scope first. Source second. Approval separate.

1 linked sources · 2 scoped claims · 0 sources with inspection/access flags.

Page scope: consumer_reference_expansion

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

Inspect 1 source scopes, access limits and dates

S088 · FireWire connector guide — physical forms

C2G / Legrand · Manufacturer / product-owner domain · inspected 2026-10-03 · due 2027-01-01

Within inspection window

Scoped support: 4-, 6- and 9-contact forms; the 4-pin form omits bus power.

Not established / limitations: Legacy identification text only; no current OS support, converter recommendation or promised transfer rate.

Locator: 4-Pin Connector; 6-Pin Connector; 9-Pin Connector

Trace 2 claims to their source records

C129A · P129

The FireWire guide distinguishes four-, six- and nine-pin connector forms.

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval

Source links: S088 · Evidence trail → (private workspace)

C129B · P129

Its four-pin form carries data without bus-power contacts.

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval

Source links: S088 · Evidence trail → (private workspace)

Prepare this page for review → (private workspace)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.