Black Box 4-Port Ethernet Extender Over Twisted-Pair Cable

The Black Box LB510A-R3 is an Ethernet extender that lets you push network connectivity far beyond the usual limits of copper cabling. By using the twisted-pair wiring that may already be in your walls, it delivers data rates up to 15 Mbps while giving you four RJ-45 ports through an integrated 10/100 Ethernet switch.

The extender relies on G.SHDSL technology, which automatically finds the highest speed the line can support and keeps the link stable over distances as long as 30,000 feet. If you prefer manual control, you can set the rate yourself in precise 64 kbps steps through the front-panel DIP switches or a Telnet session.

This flexibility makes the unit a practical choice for many situations. Network administrators can bridge two offices on opposite ends of a campus, bring connectivity to a warehouse where fiber is out of reach, or add IP phones and cameras in an older building without pulling new cable. Because the device includes a small switch, you can connect several endpoints at the remote location with no extra hardware.

Setup is straightforward. Clear LEDs on the front panel show power, link, and diagnostic information at a glance, so you can verify status and isolate problems quickly. Once installed, the extender works quietly in the background, allowing users to work, call, or stream without noticing the long hop their data is taking.

Highlights:

• Extends Ethernet over existing twisted-pair wiring at distances up to 30,000 feet
• Integrated switch provides four individual 10/100 Mbps RJ-45 ports at the remote end
• G.SHDSL technology adjusts automatically to line conditions for speeds up to 15 Mbps
• Selectable data rates in 64 kbps increments through DIP switches or Telnet
• Front-panel LEDs and built-in diagnostics simplify installation and troubleshooting