Xerox WorkCentre Pro 423, Service Manual

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WorkCentre Pro 423/428 2-86 CHAPTER 2 TROUBLESHOOTING
03/02 Level 2 Troubleshooting
DISC Signal Contents (Sample FIF below: 0801014508028090)
bit 8765 4321
Number of octets in information element "reason display"
(Reason display 3 or later)
Identifier of information element "reason display": 08h
(fixed)
DISC
signal code: 45h
Reason
display
-4
Reason
display
-3
Reason
display
-2
Reason
display
-1
Messag
e type
Call No.
-2
Call No.
-1
Protocol
ID
DISConnect
0100 0101
0000
Reason display
length
F
0 F
(flag)
0--- ---
1--- --- Call generation side
Call destination side
Identifier
0000 1000
1000
Genera tio
n source
*See the fig.
below
--- - 0000
--- - 0001
--- - 0010
--- - 0011
--- - 0100
--- - 0101
--- - 0111
--- - 1010 Local terminal (User)
Local private network
Local domestic network
Relay network
Remote domestic network
Remote private network
Internal network
Interworking network
1
Reason display
value
* The list at
right gives
extracted
items. For
details, see
reason display
Q931.
-000 0001
-001 0000
-001 0001
-001 0010
-
101 1100
-101 1000
Missing (81h)
Normal disconnection (90h)
Called user busy (91h)
No reponse from called user
(92h)
Invalid number format (9C)
G e n e r a t i o
n s o u r c e
0000
Reason display value
001 0000
Call No. value
000 0001
Information
element
Description (Fixed unless described here)
Contents
08h
(fixed)
Identifier
0000 1000
bits 4 to 1: Length (bytes) of Call number 2
Call No.
length
Private network
consists of
equipment (PBX/TA)
other than the local
terminal.
Relay network is ISDN
network (G4-F network
/NCC ISDN network)
other than one on the
remote side.
Local office
Terminal
0000
Private
network
0001
Domestic
network
0010
Domestic
network
0101
Domestic
network
0100
Interworking network
1010
Analog terminal
0000
Relay
terminal
International network
0111
Overseas terminal
0000
Local side
Remote office
Remote side
Overseas network(ISDN/analog)
Network (analogue or mobile
telephone network) other than
domestic ISDN
Domestic ISDN
terminal
,6'1
terminal
Generation
source code