In this part, we will introduce two types of tests to troubleshoot transceiver and switch port: single-port test and dual-port test. In the next part, we will deliver how to do the fiber loopback test on the transceiver. If you look closely at the female end, the. Take a metal paperclip or wire and cross pins 2 and 3. For its unique working mode, the test is a convenient way to maintain transceivers. To check whether or not an RS-232 serial port is working, perform an RS-232 loopback test by doing the following: If your serial port is not female, convert it by taking a female/female cable or gender changer and plugging it into the serial port. Conventionally, a transceiver has a transmitting port and a receiving port, in that way, the loopback test can be applied to test the ports to diagnose whether the transceiver is working well and the configuration of the switch is right.
As you know, the transceiver is the basic component of fiber optic communication network equipment. To conduct a fiber loopback test, the communication devices will be involved, like the transceivers and the switch. But what a loopback test means for fiber optic network and how to make use of it will be the issues that we will explore in this post. e-loop replaces service loops in drilling rigs, offshore, construction machines and wind turbines. Therefore, by comparing transmitting signals with the receiving signals, the loopback test is used to debug physical connection problems. It refers to the process of transmitting electronic signals or digital data streams and returning to their sending point without any intentional processing or modification. Loopback is a commonly used term in telecommunications.
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