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 ...
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 ...
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.
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