3 ms·
Not in a literal sense. The article mentions T1 probably not because literally expecting literal T-1 service on coax, but because T-1 used to be used as a metr
by retrac 3y ago
Not in a literal sense. The article mentions T1 probably not because literally expecting literal T-1 service on coax, but because T-1 used to be used as a metric of bandwidth. It's 24 standard voice circuits (12 and 24 being traditional groupings for voice circuits). It's approximately 1.5 mbit/s.
This is about the minimum bandwidth required to make standard definition MPEG-1 video work. That was by design -- it was the bandwidth of a 1x CD-ROM drive or a T1 line.
The phone companies eventually did provision that much bandwidth to each home. And not that much long after. DSL at 1 mbit/s was around by 1997.
- kalleboo 3y agoThe port on the back of the Apple STB is actually literally a T1/E1 port (even though it looks like TP Ethernet), with a Brooktree Bt8069-Series Line Interface Unit chip inside for a T1/E1 interface! I'm not sure if there were T1 adapters for DSL etc back in the day, but I guess that's plausible (before the computer world won over the telecom world there were a lot of weird standards that looked like they would be adopted - ATM anyone?) edit: Apparently T1 started being carried over HDSL which is probably what was being used here https://www.arcelect.com/HDSL3698.htm https://www.arcelect.com/HDSL3698.htm