As a result, this cabling will experience accelerated aging or even damage; furthermore, there is also a significant risk of data loss due to signal distortion. Therefore, ISO/IEC, TIA, and Cenelec have defined DCRU testing as an optional parameter that can be added to regular cable certification if high-power PoE is planned for a specific cabling installation.

For this reason, SOFTING has developed CAT6A+ adapters for the WireXpert range of certifiers, which allow testing for DC current resistance imbalance (DCRU) in twisted-pair LAN cables, in addition to standard cable certification measurements. The CAT6A+ adapters also help identify whether the shielding on shielded cables is connected to the correct jack.

In summary, these are the capabilities of the new CAT6A+ adapters:
• DC resistance imbalance between and within pairs in twisted-pair LAN cables according to TIA and IEC specifications
• They allow testing of all regular Autotest parameters such as insertion loss, NEXT, return loss, ACR-N and ACR-F, and related power sum values
​​• Shield integrity testing to determine the correct connection of the shield to the cable connections

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