10        CNFG#   1 "9600b8pns1NONE"
20        INPUT#   1 TMOUT|5 a$         /* timeout 5 sec
35        IF   rse_==1 THEN             /* check timeout
36         PRINT   "timeout"
37         ELSE
38         PRINT   a$
40        END_IF
#RUN

 timeout                                /* fail
#RUN

 asdfg                                  /* success
#