Xerox WorkCentre Pro 423 Service Manual page 113

Operator Appli- Presen- Session Trans-
cation tation port
*
Text.U
Text.U
Text.U
*
CDE
Text.U: Image
information packet. The
number of packets
depends on the
information density of
CSE
the document.
WorkCentre Pro 423/428
Net- Data- Physi- ISDN net
work cal
Link
I(DT(TDT(CDUI(TextU))))
I(DT(TDT(CDUI(TextU))))
I(DT(TDT(CDUI(TextU))))
I(DT(TDT(CDE)))
I(DT(TDT(RDEP)))
I(DT(TDT(CSE)))
I(DT(TDT(RSEP)))
I(CQ)
CQ
I(CF)
DIS
D-channel communication - disconnection (See the D-channel sequence)
Physi- Data- Net- Trans- Session Presen-
cal Link work port tation
RDE
RSE
CF
UA
03/02
2-81
Operator
Appli-
cation
Level 2 Troubleshooting
CHAPTER 2 TROUBLESHOOTING