Tak.
No ale skoro wyjdzie, że nie ma ciągłości żył, to i tak trzeba z dwóch stron zarobić koncówki, czyli gniazda (po naprawie uszkodzenia). Wszelkie pomiary lepiej jest robić przy zarobionych gniazdach na końcach, a nie gołych żyłach.
Przy szafce też keystony mogą być. Keystone to standard gniazda wraz z zaczepami, konkretnymi rozmiarami itd. Do koncentryka też możesz dać gniazda keystone, dzięki czemu możesz kupić patchpanel 12-gniazdowy w jednym standardzie i tylko żonglować stykami (RJ-45, RJ-11, F, światło itd). Oczywiście nie ma przymusu.
Jeden komputer plus switch.. PRzed chwilą ściągnąłem stery dla swojej karty i wykonałem taki prosty test okablowania:
Test signal quality and show cable status: This is an online test. This means that the adapter does not lose link during the test. If a result is not displayed, it is unavailable for the selected adapter. The results from this test include:
NOTES:
- The tests listed below are not available for all adapters. If a test is available for an adapter, it will be displayed in the results. In some configurations, setting the adapter to automatically detect or negotiate speed and duplex may make the test available.
- A "Poor quality cable detected" result may be caused by no cable connected.
- Cable Length: Displays the approximate length of the cable between the adapter and its link partner. If the reported cable length is different from the actual cable length, this could indicate a break in the cable. Accuracy can vary by up to 9 meters. The cable length will only be displayed when the adapter is connected to a network operating at 1000 Mbps.
- Polarity: Identifies the +/- properties of the send and receive twisted pair wires found in an Ethernet cable. If these properties are not correctly set up, the adapter will auto-correct and report the error.
- Local Receiver Status: Identifies whether the cable connector attached to the adapter is capable of handling traffic. If the local status test fails, check the connector for breaks or mis-wirings. The adapter must be connected at 1000 Mbps for the local receiver status test to run.
- Remote Receiver Status: The cable connector attached to the link partner passes or fails the set of operability tests. If the remote status test fails, check the connector for breaks or mis-wirings. The adapter must be connected at 1000 Mbps for the remote receiver status test to run.
- Signal quality: The adapter must be connected at 1000 Mbps for the signal quality test to run.
Test cable connections and frequency response: The time domain reflectometry (TDR) test shows shorts, opens, and impedance mismatch in the cable. The insertion loss test shows whether there is excessive insertion loss.
This is an offline test.
WARNING: The offline test will disable the adapter's network connectivity.