🔧 Test smarter, not harder — your network’s best sidekick!
The Networx® ISDN (PRI) RJ45 Loopback Tester is a compact, rugged, and user-friendly device designed for quick verification of ISDN PRI network connections. Featuring a durable blue molded design, RJ45 female connector, and a clear link LED indicator, it enables network professionals to easily detect wiring faults and confirm connectivity without bulky tools. Backed by a lifetime warranty, it’s an indispensable tool for efficient network troubleshooting in tight spaces.
| ASIN | B00E4OKIIC |
| Best Sellers Rank | #33,011 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #53 in Network & Cable Testers |
| Customer Reviews | 4.4 4.4 out of 5 stars (451) |
| Date First Available | January 15, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.8 ounces |
| Item model number | LB-IPRIS |
| Manufacturer | Networx® |
| Product Dimensions | 3.56 x 3.25 x 0.78 inches |
S**P
Simple and good insurance all will work fine. Good craftsmanship.
worked flawlessly. I was instructed to build a cord, but didn't want to take a chance. This was cheap insurance it was done right. Keep one in your arsenal.
T**N
So easy and convenient to install.
So easy and convenient to install.
J**)
IMPORTANT TOOL for every network engineer.
It's basic, but it's necessary, and it works VERY well. Can't tell what switchport a wall port goes to? Throw on loopback detection on every port, plug this thing in, BOOM! Port identified! WAY easier than toning out cables!
F**G
Good product, great for troubleshooting older ethernet devices
Many older devices without auto-negotiation of RX-TX pin positions need a crossover cable rather than a common straight-through cable. This makes it easy to swap without needing a separate crossover cable.
B**E
didn't work
simply didn't work.
D**H
Work related
This made life so much easier. Dont have to make them anymore and wont lose this one.
J**A
Intended for IT
Very Good product and works as it it intended for. Just make sure you get the right one for the job. The Gig loopback is different from the RJ45. Although technically both are RJ45 structure, the internal wiring is different. These loopback are great for Analyst remoting-in and conducting their own company proprietary test on their machines.
J**A
Still not entirely sure how it works.
I got no use out of this. I won't give it a bad review just for that, but it could be more clear as to what it does. I wanted to use it to test my home data jacks, but I guess it's really only made to test cables? I still don't get it.
T**Y
Despite the warnings from other buyers and the fact that it is made in China, I bought the device. Unsurprisingly it did not work. A refund is on the way. Hopefully that will work as it is made in the USA!
R**Y
Perfect piece of kit for any data / network installer
Trustpilot
1 week ago
2 weeks ago
