[comp.dcom.modems] 9600 baud modems for serial line tcp/ip?

grant@wjh12.UUCP (07/08/87)

Does anybody have suggestions for a pair of 9600 baud modems that will work
with serial line tcp/ip?  The US Robotics (9600/300) are interesting,
but what happens on the return 300 baud line. Have to go over standard
tel co lines auto-dial/answer Hayes compat' etc.

grant balkema grant@g73.harvard.edu or grant@wjh12.harvard.edu

W8SDZ@SIMTEL20.ARPA.UUCP (07/08/87)

I have two of the USRobotics HST 9600 modems and use them regularly
for large file transfers using XMODEM protocol (1k blocks, ala
YMODEM).  I don't know much about tcp/ip but if the transactions are
mostly in one direction (i.e., the receiver sends ACK/NAK's) this
modem should work great for you.  It automatically gives the 9600 baud
to the direction that has the most data to send.  If that changes, it
reverses (transparently).

--Keith Petersen
Arpa: W8SDZ@SIMTEL20.ARPA
Uucp: {bellcore,decwrl,harvard,lll-crg,ucbvax,uw-beaver}!simtel20.arpa!w8sdz
GEnie: W8SDZ
RCP/M Royal Oak: 313-759-6569 - 300, 1200, 2400 (V.22bis) or 9600 (USR HST)

mph@rover.UUCP (Mark Huth) (07/20/87)

Concord Data Systems in Marlborough MA has good 9600 baud modems that work
over the normal voice grade telephone lines.  Phone number is (617) 460-0808.

Mark Huth
seismo!noao!mcdsun!rover!mph