loopback plug is a device used to test ports (such as serial,
parallel USB and network ports) to identify network and
network interface card (NIC) issues. Loopback plug equipment
facilitates the testing of simple networking issues and
is available at very low costs. A loopback plug device is
classified as male or female. A
loopback plug is also known as a loopback adapter or loopback
loopback plug is a wire device with a small plastic connector
at one end that isolates network circuit issues and is made
with RJ-45 connectors, a crimping device and unshielded
twisted pair (UTP) cables.
Generally, outgoing data signals are redirected to the system,
which ensures system data transmission capability. As data
is looped, the system recognizes output data as input data.
Loopback plugs are used to route electronic signals and
digital data streams from the source back to the same origin
to test data transmission. Telecommunications, serial interfaces,
virtual network interfaces and networking all implement
Loopback techniques include:
Access lines are tested for transmission from the serving
switching center without manual assistance.
The installation of a patch cable, which may be applied
manually, automatically, remotely or locally.
The testing a communication channel with only one end point,
so that any transmitted message is received by the same