[comp.sys.mac] Problem with Mac II Com Ports

jtwarden@pawl.rpi.edu (Joseph T. Warden) (05/25/89)

Perhaps someone can suggest a solution to a problem I have
encountered. I have a Mac II with 5 Megs of RAM, 40 Meg HD
and two monitors. One of the serial ports (Printer) is connected
to a LocalTalk network which includes a FastPath4 gateway. The other
port (modem) is directly connected to a PDP-11 (the 11 is
configured for 4800 baud). Until today I have had no problem
communicating with the 11. However today I get no response
from the 11 (or a Sun3/50) using either the normal modem port
or the printer port. However communication over LocalTalk works as
normal. The communication software I use for the serial ports
is VersaTerm and I am running System 6.0.2. There has been no
hardware change in my system, and the only software addition is
NCSA Telnet to enable communication via the FastPath. Any suggestions?

Joseph Warden
Department of Chemistry
RPI
Troy, NY

Internet: jtwarden@charis.chem.rpi.edu
BITNET: jtwarden@rpitsmts