Hirose GT32 D Key To D Key Cable

PCM-ZC-0249 connects a head unit to a remote infotainment module when both ports use the Hirose GT32 D Key interface and share the same contact assignments. The cable has a black latching connector at each end, with four contacts wired straight through and a separate connection between the metal shells.

The 2000mm DACAR 535 cable gives teams room to position the modules at their intended spacing during vehicle layout trials or bench testing. For projects that also use dark gray GT32 Standard connectors, the GT32-4DS-HU(D) shell number identifies the exact key to specify when ordering samples or production quantities.

Product Specifications 

What to Check Before Specifying the D Key Cable

Identify the Key From the Shell Number

Both ends carry the original black Hirose GT32-4DS-HU(D) shell. The D suffix identifies the mating profile, which is the detail to check when a program uses more than one GT32 variant. The drawing lists GT32-4DS-1.5C separately as the connector at each end. If an equipment list gives only that number, confirm the shell number and mating port before ordering. This is particularly useful when comparing the black D Key version with the dark gray Standard version in photos or sample bins.

Check the Signal Assignment at Both Modules

Pin 1 stays on pin 1 from one module to the other, and the same pattern applies through pin 4. When two module revisions share the Hirose GT32 D Key profile, compare their pin tables to confirm that each signal reaches its intended contact. The drawing shows a separate path between the metal shells, so a continuity fixture can check that path independently of the four conductors. Use the mating face views to establish contact orientation before comparing the cable map with the equipment drawings.

Allow Space to Connect and Release Both Ends

Check the cable route with the module brackets and neighboring harnesses in place. A route can reach both ports and still leave too little space above a Hirose latch for a technician to release it. Behind each connector, the 20mm sleeve also occupies part of the space before the cable turns. Use the 28.4mm connector reference dimension and the controlled cable span to check the installed layout. If a module must slide out for service, verify that the cable can move with it without pulling on either end.

Review DACAR 535 Against the Link Requirements

The assembly drawing specifies DACAR 535, 100Ω nominal impedance and a frequency range from DC to 2GHz. Keep the cable designation with the electrical requirements when comparing supplier quotations or reviewing a length change. For a specific vehicle data link, assess the assembly with the intended module interfaces and mating connectors. The frequency range is an electrical specification for the assembly. The supported protocol and data rate depend on how the complete link performs.

Where the USB Female End Fits

Product Drawing

Product FAQ

How do I identify the D Key version when ordering ?
Look for GT32-4DS-HU(D) on both shell callouts. The black shell is a visual cue, and the full Hirose part number identifies the mating profile.

Can either end of the cable connect to either module ?
Yes, when both modules have mating Hirose GT32 D Key ports and their signal assignments agree with the cable map. The connector configuration is identical at both ends.

Does the 2000mm cable length include the connectors ?
The drawing specifies 2000mm ± 20mm between the marked reference points near the cable exits. Use the separate connector dimensions when checking the total installation space.

What does the 500V RMS specification mean ?
It is the minimum dielectric withstand test voltage listed on the drawing. Confirm the operating voltage against the requirements of the equipment interface.

What information should I send for a quotation ?
Reference PCM-ZC-0249 and include the estimated quantity. If your project requires a different configuration, send the mating Hirose part number at each end, the target cable length and the required wiring.