you sure are right about it being a show piece. this is the first time my bert has been powered up in at least 15 years.
Today one gets a E1 tester (which is the closest in spirit to this) as an optional add-on pack on the better optic/Ethernet testers. I've not found any use for one at work yet, so it holds no interest to me. In the military, though, that might be a different story.
The array of Devices! that is needed to maintain and diagnose optical and copper lines today is impressive.
- Ferrule microscope
- Power source
- Power meter
- OTDR (and the knowledge to operate one)
- Optical SA
- Full OSI stack Ethernet tester
- Y.1541 performance test
- L1 copper Ethernet tester
- Timing testers for IEEE1588
Most of the time, a lot of these functions are crammed into one device. The SA often is the exception; it usually is around 30000€ in and of itself.
These things obviously are still current, but the 5G rollout might make for a surplus of "3G/4G-only" test devices, where there's some important part missing in the functionality.
The mobile market is such a driver for technology being cheaply available. 6 years ago, one had to look all over for Ethernet switches and routers with PTP. Now it is pretty common, and in a lot of platforms that are nicely priced, like all the Cisco Nexus 9000 switches and their equivalents from Arista.