Hi Team,
First time contributor, long time reader.
I am a different Serge to the one in this thread.
Been active in computing in AUS since the early 70s. Used Teletype KSR/ASR 33 from about 1973 to 1981. Many other CRTS, terminals as well.
These are my recollections. They may be flawed.
KSR 33 did NOT have a paper tape reader/punch. The Paper Tape punch and reader were on the ASR33 model exclusively. These devices were mechanical, ran at 110 Baud serial, typically in a 20 ma current loop for signalling. Used ASCII. I do not know of any way to change the interface speed, only ever saw 110. I have seen in magazines of the time, built in modems, but none seem to have made it to Australia. The paper was typically a friction fed via a platen. The interlock to stop multiple keys was done mechanically. Fairly noisy. Wiki is not bad,
https://en.wikipedia.org/wiki/Teletype_Model_33
ASR/KSR 33 was a standard for all terminals in that era that used serial ASCII.
The paper tape reader was used to bootstrap the OS to most minicomputers of the era. There was a limit as to how much paper tape could be fed by the internal feed mechanism and would often fail with a CRC check for larger punched tape rolls. The reader and punch could be controlled by a key sequence sent from the computer. Tape also ran at 110 Baud.
Used a cross section of mini computers, most DEC devices, right through to PDP10 timesharing. DECWriters were very versatile and reliable across a broad range of devices, more CRTS, and computers than I can remember.
Not sure if it helps.