🚀 go-pugleaf

DEPARTMENT OF COMPUTER SCIENCE
UNIVERSITY OF WATERLOO
SEMINAR ACTIVITIES

COMPUTER NETWORKS SEMINAR

(JOINT SEMINAR WITH ELECTRIAL ENGINEERING)


                    -Tuesday, June 6, 1989

Professor  Andrzej  Jajszczyk,  Technical University of
Poznan,  Poland,  will  speak  on  "Fault  Diagnosis of
Digital Switching Networks."

TIME:                 3:30 p.m.

ROOM:              DC 1304

ABSTRACT

Methods  of  fault  detection and location for separate
digital  switching  matrices  (DSM's) as well as a wide
class of switching networks are proposed.  First, it is
assumed that stuck-type faults can affect only a single
component  of a network.  A model of a switching matrix
is  presented  and fault equivalences are shown.  After
the  discussion of a method of single switch diagnosis,
test vectors and connection settings for identification
of  a  single  faulty switch in multistage networks are
proposed.   To avoid the masking effects the notions of
an  H-test  vector  and an H-assignment are introduced.
In  the  proposed  approach,  tests  for space and time
switching   are  performed  separately.   Finally,  the
analysis  is  extended  to  include  multiple component
faults.