MERLIN LEGEND Communications System Release 6.1
System Programming and Maintenance (SPM)
555-661-140
Issue 1
August 1998
Programming with SPM
Page 20
Connecting the PC
Figure 4. Remote Modem Connection
NOTE:
Remote access (modem connection) has priority over local access
(direct connection), unless a backup or restore procedure is in
progress through a direct local connection. If a modem connection
is attempted while any other type of on-site programming is in
progress (either at the system or at a directly-connected PC), the
system sends a message to the on-site programmer. The message
indicates that a modem connection is being established and the
on-site programming session is terminated.
CAUTION
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2
PROCESSOR
RS-232
Serial
Communications
Port
Incoming
trunk line
Public or private
telephone network
MODEM