Reply to post: Re: I doubt they splice

Spies would need superpowers to tap undersea cables

JeffyPoooh
Pint

Re: I doubt they splice

Everyone keeps spouting on about TDRs etc. Serious question here: Would TDRs still work, what with all the repeaters in the circuit?

I assume that most repeaters are probably unidirectional, right? What about the erbium-doped type? Anyone know? But they don't need 10,000 volts. They need a laser beam. So TDRs may be an issue in the first and last leg of the cable, but I presume aren't much use once you get a couple of repeaters further from shore, right? Anyone think about this?

Unless, the repeaters are sufficiently sophisticated to include such test equipment in the repeaters themselves. I dunno. Another point of failure vs BITE.

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