PuTTY is free Win32 Telnet/SSH client, more information is available here.
They have binaries for x86 and DEC Alpha, but none for Windows NT PPC (PowerPC) as not very many people ever used this platform. I happen to be an owner of one such machine and compiled the code.
Another thing to consider:
Taken from the PuTTY site
LEGAL WARNING: Use of PuTTY, PSCP, PSFTP and Plink is illegal in countries where encryption is outlawed. I believe it is legal to use PuTTY, PSCP, PSFTP and Plink in England and many other countries, but I am not a lawyer and so if in doubt you should seek legal advice before downloading it...
Files:Remember these files are for PowerPC WindowsNT only! If you get the following error then you don't have a PowerPC based windows system.
PuTTY.exe ssh client
PuTTYTel.exe telnet client
PuTTYGEN.exe RSA public/private key generator
pscp.exe secure copy
psftp.exe secure ftp
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