Xerox WorkCentre Pro 423 - Page 111

03/02 Level 2 Troubleshooting
WorkCentre Pro 423/428 2-79 CHAPTER 2 TROUBLESHOOTING
Operator Presen-
tation
Appli-
cation
Session Trans-
por
t
Net-
work
Data-
Link
Physi-
cal
ISDN
net
Physi-
cal
Data-
Link
Net-
work
Trans-
por
t
Session
Presen-
tation
Appli-
cation
Operator
DISC
RELEASE
DISC
UA
DISC
RELCOMP
DISC
UA
INF
B-channel communication (See the B-channel sequence)
Disconnection
request
RELCOMP
RELEASE
INF