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DATA / 1394 / 09

FireWire® Aerospace Data Cables

110-ohm data-and-power cable for IEEE 1394b / AS5643-class airborne and vehicle networks through 400 Mb/s, with 22, 24 and 26 AWG directions that balance voltage drop, mass and routing space.

Up to 400 Mb/s110 +6/−4 Ω22–26 AWG
PRODUCT FAMILYData Cables
Yidong Telecom FireWire IEEE 1394b data-pair and power-conductor cable construction
DATA / 1394 / Representative construction · Final design follows the approved specification

01 / CONFIGURATION DIRECTIONS

Select a configuration from the application boundaries

These configurations establish a practical discussion starting point. The final product requires a controlled specification based on interface, length, installation and validation conditions.

01

22 AWG extended-distance type

Larger conductor section for power-drop and longer-link requirements.

02

24 AWG balanced type

Balances mass, diameter, termination and aerospace routing.

03

26 AWG lightweight type

For dense, short or mass-sensitive equipment links.

Match a solution direction to the link target

Solution codes support early technical discussions by aligning protocol, construction, link boundaries and application in one view.

SOLUTION CODEPROTOCOL / RATECONSTRUCTIONKEY BOUNDARYBEST FIT
CM-1394-22IEEE 1394b / AS5643 · up to 400 Mb/s22 AWG data pairs, larger power conductors and shield110 +6/−4 Ω · < 15 VLonger links and voltage-drop-sensitive equipment
CM-1394-24IEEE 1394b / AS5643 · up to 400 Mb/sBalanced 24 AWG data-and-power construction80% velocity · 3.5 ps/m intra-pair skewGeneral avionics and vehicle equipment links
CM-1394-26IEEE 1394b / AS5643 · up to 400 Mb/sLightweight, compact 26 AWG construction−55 to +200 °CDense, short and mass-sensitive harnesses

MODEL NOTEThe 22, 24 and 26 AWG directions represent separate constructions. Final part number is determined with bus length, nodes, supply current, voltage drop, connectors and shield grounding.

02 / PERFORMANCE PARAMETERS

Product performance parameters

The following values describe current product performance boundaries, with the applicable model, construction or test condition retained.

PERFORMANCE METRICVALUECONFIGURATION / CONDITION
01Maximum data rate400 Mb/s

IEEE 1394b / AS5643 direction

02Standard impedance110 +6/−4 Ω

Nominal value

03Typical operating voltage< 15 V

System operating condition

04Velocity / delay80% · 4.10 ns/m

Nominal values

05Capacitance / intra-pair skew36.1 pF/m · 3.5 ps/m

Typical values

06Dielectric withstand1500 / 1000 Vrms

Conductor-conductor / conductor-shield

07Temperature range−55 to +200 °C

Full family

The 22, 24 and 26 AWG sizes are separate part numbers; transmission values cover the family.

Technical referenceValues are confirmed against category, gauge, length and termination

03 / TYPICAL CONSTRUCTION

From functional core to terminated interface

LAYER 01

Silver-plated copper-alloy conductors

Gauge, voltage drop, strength and termination contacts define the conductor construction.

LAYER 02

Low-loss insulation

Expanded PTFE/PTFE controls impedance, delay and high-frequency attenuation.

LAYER 03

Controlled signal units

Differential pairs, quads or multichannel video/data units are formed around the protocol.

LAYER 04

Individual and overall shields

Pair coupling, external EMI and connector return continuity are managed together.

LAYER 05

Environmental jacket

Wide temperature, abrasion, flame, marking and harness termination are balanced.

04 / SELECTION & VALIDATION

Inputs needed to start a custom assessment

SELECTION ITEMINFORMATION TO CONFIRM
01Protocol and speed

Interface revision, target rate, encoding and maximum channel length

02Electrical boundary

Impedance, insertion/return loss, skew and dielectric withstand

03Channel construction

Pair count, auxiliary wires, power and shield zoning

04Installation envelope

Gauge, diameter, mass, bend radius and harness section

05Environment

Temperature, vibration, abrasion, fluids, smoke/toxicity and flame

06Termination

Connector, contact, backshell, grounding and strain relief

Typical applications

  • Airborne mission networks
  • Sensors and video
  • Defense vehicle electronics
  • IEEE 1394b equipment links

Interfaces & delivery

  • Aerospace circular or rectangular connectors
  • High-density contacts and backshells
  • Pigtail, fixed-length harness or complete assembly
ENGINEERING NOTE

Data rate and channel capability depend on the final cable, length, connectors and termination process and must be confirmed as a complete channel.

Ready to define a controlled specification?

Bring us the interface, environment and validation requirements.

Yidong Telecom can build a sample direction and validation matrix around the cable construction, termination and system boundaries.

Submit requirement checklist