With the Internet of Things (IoT) and the development of sensor technology, more and more devices are becoming IP enabled and connecting to the copper horizontal cabling infrastructure. Most of these devices such as LED lights, security cameras, building automation controls, and Wi-Fi access points include an integrated RJ45 port for connecting to the network. Therefore the most logical connector type would be the RJ45 plug.
A Modified Permanent Terminated Link or MPTL is a permanent link terminated with either a patch panel or jack at one end and an RJ45 plug at the other. This type of link supports direct termination requirements of equipment which can be coupled or connected to a network such as WiFi Access Points, IPCCTV, LED lighting, Access Control, BMS etc. Currently only supported by ANSI/TIA 568-D.
When tested as ANSI/TIA 568.D.2 a modified terminated permanent link requires both a permanent link umbilical and patch cord channel head adaptors. The permanent link umbilical head adaptor must always be inserted at the main with the patch cord channel head at the remote unit. View an example of a modified permanent link test.
However when testing to ISO/IEC or a CENELEC standard such as BSEN 50173 a conventional permanent link must be created for testing. To do this we recommend the introduction of a same Class/Category 15m Permanent Link at the remote end of the MTPL (RJ45 plug). This can be used as a reference component of the channel for all MTPL to be tested in the structured cabling installation/project.
Although it is possible to test to ANSI/TIA using the ISO/IEC or CENELEC method it is not possible to test to ISO/IEC or CENELEC using the ANSI/TIA method, however both methods enable the test equipment to measure the Capacitance and Inductance between the RJ45 plug and jack.