A DB44 cable uses a 44-position high-density D-Sub connector. Current D-Sub manufacturer literature identifies the 44-position high-density configuration as a B-shell connector with three contact rows. In industrial sourcing, the connector identifies the mechanical interface only; motion-control and I/O pinouts are often equipment-specific.
What ‘High-Density’ Means Here
High-density D-Sub configurations pack more contacts into a shell by using a tighter contact pattern and additional rows. The 44-position version uses three rows and should be distinguished from standard-density connectors in the same shell family.
Count positions and rows before ordering; do not rely on approximate shell width.
DB44 Naming and Identification
DB44 is the common market name. For engineering, a manufacturer part number or a drawing showing the 44-position high-density configuration is more reliable than the name alone.
Record gender, retention hardware, solder/crimp/IDC termination if relevant, and backshell dimensions.
Industrial and Motion-Control Use
High-contact-count D-Sub connectors are often used where a controller needs many command, feedback, or I/O conductors in one interface. That makes DB44-style cables common in industrial and motion-control ecosystems.
Do not reuse a pinout from another drive or controller family. The equipment drawing controls the mapping.
Shielding and Mechanical Retention
Motion-control and cabinet applications can place the cable near switching power and motor wiring, so follow the equipment manufacturer’s shielding and routing requirements. If shield termination is part of the design, define the backshell and bonding method on the drawing.
Retention hardware should match the equipment receptacle and remain accessible for service.
What to Send for a Custom DB44 Cable
Send the exact controller/equipment model, mating connector reference, pinout, length, shield/back-shell requirement, cable exit, labels, and quantity. If the cable branches, define every branch mapping and dimension.
For a replacement, compare the original connector hardware and cable diameter as well as electrical continuity.
Buyer / Engineer Checklist
- Confirm the exact equipment model and port function.
- Identify connector type, contact count, row layout, and cable-side gender.
- Use an approved pinout, equipment manual, or verified original sample.
- Define DB44 cable diameter, backshell entry, retention, cable exit, and shielding from the controller installation.
- State sample quantity, production quantity, and required electrical inspection.
Ordering Mistakes to Avoid
Selecting by shell appearance; reusing another controller’s pinout; or ignoring shield/back-shell and retention requirements.
Frequently Asked Questions
Is DB44 a standard-density connector?
The common 44-position D-Sub is a high-density, three-row configuration.
Does every DB44 cable use the same motion-control pinout?
No. Industrial pinouts are often equipment-specific.
Can I select DB44 by shell size only?
No. Confirm 44 positions, row layout, gender, and the exact mating interface.
Need a Custom Cable or Compatibility Review?
For a DB44 motion-control or I/O cable, send the controller/drive model, 44-position mating connector reference, approved pinout, shielding/backshell details, length, and quantity. The build can then follow the controller-specific map.
Our team (BespokeCable) will, in accordance with your requirements, ensure both quality and quantity while delivering the product to you promptly. Call us now!
