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My memory is somewhat hazy on that. I do recall helping to hook up equipment (cannot recall the brand) to the T1 DSU/CSU for our multiline "adult" ISP, but that
by justinlloyd 5y ago
My memory is somewhat hazy on that. I do recall helping to hook up equipment (cannot recall the brand) to the T1 DSU/CSU for our multiline "adult" ISP, but that wasn't my area of responsibility at the time.
And I am going to take back my "56k in one direction" statement and say: I think we capped out at around 33k on the analogue to analogue connections even though they "supported" 56k so I am probably quoting our crappy marketing rather than our physical capability.
- icedchai 5y agoMy understanding is there was no way to support full 56k between two analog modems, so one side needed to be digital. In reality, I never saw a 56k connection even in that configuration. It was always ~52k or lower, but maybe we just had crappy phone lines around here.
- justinlloyd 5y agoI am recalling getting "insane" speeds during site-to-site warez transfers on the BBS's, upwards of 200kbps a second, capping the CPU on most machines, but we also used shotgunned modems on the main trading hubs, and a packetizing ZModem-like protocol to separate the transfers into 64Kbyte chunks so I am most likely misremembering a number of misadventures and smushing a few of the details together.
- icedchai 5y agoThat seems possible with compression? Most serial ports maxed out at 115,200 bps back in those days.