Case Study spiral cable with M12 and D-SUB for barcode reader

A handheld scanner in roughest industrial application faces regular breakage of cores: sure, since it suffers unguided movements in a huge number of vastly different constellations. Analysis done by the customer show clearly that individual operators perform different movements in the course of a day, let alone different operators.

After detailed analysis the Sarek specialists worked out a detailed solution package:

• the current cable with PVC insulation is replaced with one with extremely tough and resistant TPE-insulation
• the cable is made with a spiral shield, this is much more flexible than the braid shield in flexing and movements
• after coiling, the cable is getting a back twist to further increase the memory effect
• the shielded 12-pole M12 connector is overmoulded for optimum connection, protection, and strain relief
• the 9-pole D-SUB is getting an additional connector for power supply. We have inserted a diode to ensure there can not be voltage on the RS232. A heat-shrinkg tube with inner glue enables bundling and common strain relief.