FireWire Design Guide

Scope and location

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

Section 2.2, Figure 2-4 '1394b type 1 cable assembly and schematic (Beta plug to Beta plug)' and Table 2-2 '1394b type 1 (Beta to beta) end-to-end connections'; Section 2.2, Figure 2-5 '1394b type 2 cable assembly and schematic (Legacy 6 circuit plug to Bilingual plug)' and Table 2-3 'Legacy 6 circuit to 1394b Bilingual end-to-end connections' (6-circuit side columns); Section 2.2, Figure 2-6 '1394b type 3 cable assembly and schematic (Legacy 4-circuit plug to Bilingual plug)' and Table 2-4 'Legacy 4 circuit to 1394b Bilingual end-to-end connections' (4-circuit side columns)

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Inspected

2026-10-20

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Source scope and unresolved evidence are preserved in the engineering variant.

Source inspection is separate from independent technical approval, rights clearance and hardware testing.