A connector used for diagnosing transmission problems. Also called a "wrap plug," it plugs into an Ethernet or serial port and crosses over the transmit line to the receive line so that outgoing ...

We just mentioned Loopback 1 in a piece about podcasting tools and confessed we'd only opened it once in months. It was meant as praise for a tool we lean on constantly and don't have to think about.

For both PCIe and Ethernet (IEEE 802.3,) signals are getting mighty small. With PCIe 5 reaching 32 Gbps (NRZ at 32 GBaud) and 802.3 reaching 112 Gbps (PAM4 at 56 GBaud), typical eye-mask limits are ...

The simplicity of version 2 of Loopback makes it even easier to access its powerful features for combining and controlling audio sources, including the sound output of apps. A typical configuration ...