[GreenKeys] ASR33

[B M]

Is the ASR33 capable of generating voltage/current spikes via the 20mA
connection?  I realize the connection is passive, but what exactly is
the 20mA connection driving? Should I be concerned about connecting
the ASR33 directly to my old PDP-11's?  I am more concerned about
ensuring the PDP-11 will be ok and not as concerned if something bad
happens to the ASR33 since the TTY is much easier to fix/replace :-)

Is there any tests I could perform before hooking the TTY to my computer?

Many thanks for any information.

--barrym