Page 1
FAX4500L G4 "I" KIT
SERVICE MANUAL
Page 2
1. INSTALLATION
1.1. INSTALLATION PROCEDURE
[A]
Remove
covers [A] and
[B].
[B]
Attach [C],[D],[E],
and [G] from ISDN kit.
[E]
Remove NCU to
attach [D], then
replace NCU in
machine.
[D]
[C]
[G]
Component [F]: Europe only
[H]
[F]
Remove panel [H] from
back cover and replace with
[I] from kit, then replace
covers.
[ I ]
Caution: Do not plug in or switch on until all connections are completed.
4500L/G4 "I" KIT 1-1 SM
Page 3
Rev. 11/93
1.2. FACTORY SETTINGS
The following tables show how to program the G4 Internal Bit Switches (Function 01) and G4 Parameter Switches (Function 02) for each country. Make
sure that these values are correct at installation.
USA
Bit Switches
All at 00 (H), except:
Switch 00: 11(H) Switch 06: 03 (H) Switch 14: 21(H)
Switch 03: 01(H) Switch 11: 01 (H) Switch 17: 42 (H)
57 (H)
Switch 04: 03(H) Switch 13: 1A (H) Switch 19: 01(H)
* For AT&T 5ESS switch
** For Northern Telecom DMS-100 switch
Parameter Switches
SW 00 SW 01 SW 02 SW 03 SW 04 SW 05 SW 06 SW 07
00(H) 00(H) 01(H) 01(H) 07(H) 02(H) 11(H) 0B(H)
SW 08 SW 09 SW 0A SW 0B SW 0C SW 0D SW 0E SW 0F
07(H) 00(H) 01(H) 0B(H) 01(H) 00(H) B2(H) 00 (H)
*
**
UK
Bit Switches
All at 00 (H), except: Switch 00: 02(H)
Switch 10: 01(H)
Parameter Switches
SW 00 SW 01 SW 02 SW 03 SW 04 SW 05 SW 06 SW 07
00(H) 01(H) 00(H) 00(H) 07(H) 02(H) 00(H) 0B(H)
SW 08 SW 09 SW 0A SW 0B SW 0C SW 0D SW 0E
07(H) 00(H) 01(H) 0B(H) 01(H) 00(H) B2(H)
Asia
Bit Switches
All at 00 (H), except: Switch 00: 12(H)
Parameter Switches
SW 00 SW 01 SW 02 SW 03 SW 04 SW 05 SW 06 SW 07
00(H) 01(H) 00(H) 00(H) 07(H) 02(H) 00(H) 0B(H)
SW 08 SW 09 SW 0A SW 0B SW 0C SW 0D SW 0E
07(H) 00(H) 01(H) 0B(H) 01(H) 00(H) B2(H)
4500L/G4 "I" KIT 1-2 SM
Page 4
2. SERVICE TABLES AND PROCEDURES
2.1. SERVICE LEVEL FUNCTIONS
To enter G4 service mode, press the following sequence of keys:
Function 6 0 1 9 9 1
then immediately Yes
Then press 1 8
SERVICE FUNCTION NO. _
01BIT SW. 02PARA LIST
03ERROR CODE 04SVC MONITOR
G4 NO. _
01 G4_ISW 02 G4_PSW
03 DN_IP 04 ISDN_IP
After completing a G4 service mode operation, you must reset the machine
by switching it off, waiting for a few minutes, then switching back on. There is
no need to do this for any of the G3 service modes (except during hard disk
installation).
2.1.1. G4 Internal Switch Programming (Function 01)
1. After entering G4 service mode,
press 0 1
G4_ISW
DF: 00000000
SW:00 00000000
Bit 7 is displayed at the left, and bit 0 at the right. The default settings are
shown on the top line, and the current settings on the bottom.
2. • Increment bit switch: ↓
• Decrement bit switch: ↑
Example:
Display bit switch 3: ↓ x 3
4500L/G4 "I" KIT 2-1 SM
G4_ISW
DF: 00000000
SW:03 00000000
Page 5
3. Adjust the bit switch.
Example: To change the value of
bit 7, press 7
G4_ISW
DF: 00000000
SW:03 10000000
4. Either:
• Adjust more bit switches - go to
step 2.
• Finish - Yes
G4_PSW
DF: 00000000
SW:00 00000000
2.1.2. G4 Parameter Switch Programming (Function 02)
1. After entering G4 service mode,
press 0 2
Bit 7 is displayed at the left, and bit
0 at the right. The default settings
are shown on the top line, and the
current settings on the bottom.
2. • Increment bit switch: ↓
• Decrement bit switch: ↑
Example:
Display bit switch 3: ↓ x 3
3. Adjust the bit switch.
Example: To change the value of
bit 7, press 7
G4_PSW
DF: 00000000
SW:03 00000000
G4_PSW
DF: 00000000
SW:03 10000000
4. Either:
• Adjust more bit switches - go to step 2.
• Finish - Yes
2.1.3. Storing the DNIP (Function 03)
Do not use this function.
4500L/G4 "I" KIT 2-2 SM
Page 6
2.1.4. Storing the ISDN-IP (Function 04)
1. After entering G4 service mode,
press 0 4
ISDN_IP
2. Input the ISDN International Prefix (ISDN-IP).
Example: 1 2 3 4 Yes
2.1.5. Storing the First G4 Subscriber Number (Function 05)
1. After entering G4 service mode,
press 0 5
G4_SN1
2. Input the number. Include a pause in the number. Then press Yes
2.1.6. Storing the Second G4 Subscriber Number (Function 06)
Do not use this function.
2.1.7. Storing the First ISDN G3 Subscriber Number (Function 07)
1. After entering G4 service mode,
press 0 7
IG3_SN1
2. Input the number. Include a pause in the number. Then press Yes
2.1.8. Storing the Second ISDN G3 Subscriber Number (Function 08)
Do not use this function.
2.1.9. Storing the ISDN Access Unit No 1 (Function 09)
This is only for use during PTT approval tests.
4500L/G4 "I" KIT 2-3 SM
Page 7
2.1.10. Storing the ISDN Access Unit No 2 (Function 10)
Do not use this function
2.1.11. Storing the G4 Subaddress (Function 11)
1. After entering G4 service mode,
press 1 1
G4_SA
2. Input the subaddress. Then press Yes
2.1.12. Storing the ISDN G3 Subaddress (Function 12)
1. After entering G4 service mode,
press 1 2
IG3_SA
2. Input the subaddress. Then press Yes
2.1.13. Storing the G4 Terminal ID (Function 13)
1. After entering G4 service mode,
press 1 3
G4_TID
-=
2. First, input the ISDN’s country
code.
For example: 1 2 3 4 Yes
G4_TID
1234-=
-
4500L/G4 "I" KIT 2-4 SM
Page 8
3. Input the machine’s telephone number, then press Yes
G4_TID
= ABC
4. Input the G4 terminal name.
G4_TID
= XYZ CO. NEW YORK ABC
5. Press Yes
2.1.14. Storing the ISDN G3 CSI (Function 14)
1. After entering G4 service mode,
press 1 4
IG3_CSI
1234-5551234=
1234-5551234=
YES OR CLR . NO
YES
TO END
2. Input the CSI. Then press Yes
2.1.15. Printing a G4 Memory Dump (Function 15)
1. After entering G4 service mode,
press 1 5
G4 MEMORY DUMP
ADD. H - ADD. FFH
2. Input the range of addresses that you wish to print.
Example: Addresses 22AA00 to 22BBFF
2 2 A A 2 2 B B Start
4500L/G4 "I" KIT 2-5 SM
Page 9
2.1.16. Printing a G4 Protocol Dump List (Function 16)
1. After entering G4 service mode, set parameter switch E bit 1 to 1 (use G4
function 02). Then make a test communication.
2. From the G4 service mode menu,
press 1 6
G4_DMP2
0 D+Bch1
PRESS START
3. Either:
• Print a protocol dump list for the B and D channels: 0 Start
• Print a protocol dump list for the D channel: 1 Start
• Print a protocol dump list for the B channel link layer: 2 Start
• Print a protocol dump list for the D channel link layer: 3 Start
4. Reset parameter switch E bit 0 to 0 after you have finished.
2.1.17. Printing the G4 System Parameter List (Function 17)
1. After entering G4 service mode,
G4 SYSTEM PARAMETER LIST
press 1 7
2. Start
2.1.18. Modem/DTMF Tone Tests (Function 18)
This is only for use during PTT approval tests.
PRESS START
4500L/G4 "I" KIT 2-6 SM
Page 10
2.2. BIT SWITCHES
1 0 1 1 1 New Zealand
WARNING
Do not adjust a bit switch that is described as "Not used", as this
may cause the machine to malfunction or to operate in a manner
that is not accepted by local regulations. Such bits are for use only
in other areas, such as Japan.
2.2.1. G4 Internal Switches
Bit Switch 00
FUNCTION COMMENTS
0
Country code
1
Bit 4 3 2 1 0 Country Bit 4 3 2 1 0 Country
0 0 0 0 0 France 0 1 1 0 1 Holland
2
0 0 0 0 1 Germany 0 1 1 1 0 Spain
0 0 0 1 0 UK 0 1 1 1 1 Israel
3
0 0 0 1 1 Italy 1 0 0 0 1 USA
0 0 1 0 0 Austria 1 0 0 1 0 Asia
4
0 0 1 0 1 Belgium 1 0 0 1 1 Japan
0 0 1 1 0 Denmark 1 0 1 0 0 Hong Kong
5
0 0 1 1 1 Finland 1 0 1 0 1 South Africa
0 1 0 0 0 Ireland 1 0 1 1 0 Australia
6
0 1 0 0 1 Norway
0 1 0 1 0 Sweden 1 1 0 0 0 Singapore
7
0 1 0 1 1 Switzerland 1 1 0 0 1 Malaysia
0 1 1 0 0 Portugal
Bit switches 01 and 02 are not used.
Bit Switch 03
FUNCTION COMMENTS
0 Frame save area
status after each
communication
0: Erased 1: Kept
1 Not used Do not change the factory settings.
2
3
4
5
6
7
4500L/G4 "I" KIT 2-7 SM
If you wish to keep the protocol frames of communications
in the memory buffer, set this bit to 1. The buffer can record
several communications
Page 11
Bit Switch 04
FUNCTION COMMENTS
0 Not used Do not change the factory settings.
1
2
3
4
5 RCBCTR
0: Not valid 1: Valid
6 Not used Do not change the factory settings.
7
Bit Switch 05
FUNCTION COMMENTS
0 Not used Do not change the factory setting.
1 Logical channel
number (LCN)
0: Not controlled
1: Fixed at 01
2 Protocol ID check
0: Yes 1: No
3 Not used Do not change the factory settings.
4
5
6
7
This bit is used in Germany; set it to 1 for German PTT
approval tests.
1: RCBCTR counts consecutive R:RNR. If the counter
reaches the value of N2, the link is disconnected.
This bit is normally 0. However, some networks may require
a fixed LCN. In such cases, this bit should be 1, and you
may have to set a different value for the LCN using G4
Parameter Switch A.
The Protocol ID is in the CR packet.
Bit Switch 06
FUNCTION COMMENTS
0 Inclusion of the DTE
address in the S:CR
packet
0: No 1: Yes
1 Calling and called
DTE addresses
0: Not used 1: Used
2 Not used Do not change the factory setting.
3
4
5
6
7
When the CR packet format matches IS8208 protocol, some
networks may require this bit to be set at 1.
This bit is only effective if bit 0 of G4 Parameter switch 6 is
at 1.
This is only for packet networks. The CR packet should
contain the rx side’s DTE address, but does not have to
include the tx side’s; it can include it as an option.
Bit switch 07 and 08 are not used.
Bit Switch 09
FUNCTION COMMENTS
0 Not used Do not change the factory setting.
4500L/G4 "I" KIT 2-8 SM
Page 12
Bit Switch 09
FUNCTION COMMENTS
1 New session within
the same call
0: Not accepted
1: Accepted
2 Not used Do not change the factory settings.
3
4
5
6
7
0: If a new R:CSS is received, the machine sends back
S:RSSN.
1: If a new R:CSS is received, the machine sends back
S:RSSP.
Set this bit to 1 for German PTT approval tests.
Bit switches 0A to 0F are not used.
Bit Switch 10
FUNCTION COMMENTS
0 Connection detector
0: Disabled 1: Enabled
12Layer 1 T3 timer
Bit 2 1 Time
0 0 5 s
0 1 29 s
1 0 10 s
1 1 Not used
3 Layer 1 T4 timer
0: Not used 1: Used
4 Not used Do not change the factory settings.
5
6
7 Loop back 4 mode
0: Disabled 1: Enabled
0: USA and Japan
1: Europe
This should be kept at 5 s (both bits at 0) for normal
operation. However, you may have to change this during
PTT approval tests.
Set this bit to 1 for French PTT approval tests.
This is normally kept at 0. However, set it to 1 for British
PTT approval tests.
4500L/G4 "I" KIT 2-9 SM
Page 13
Bit Switch 11
FUNCTION COMMENTS
0 Action in reply to a link
release request
0: Link is released
1: Link is not released
1 Type of TEI used
0: Dynamic TEI
1: Static TEI
2 Static TEI value This is used in the USA with the DMS100 (Northern
3
4
5
6
7
0: Outside the USA
1: USA only
This is normally fixed at 0. However, some networks such
as the Northern Telecom ISDN may require this bit to be set
at 1 (see below). In this case, you may have to change the
values of bits 2 to 7.
Telecom ISDN) exchanger.
Store the high bit of the TEI at bit 7 and the low bit of the
TEI at bit 2.
Bit 7 6 5 4 3 2
Value 32 16 8 4 2 1
Example: Static TEI Value 21 = 010101
Rev. 1/95
Bit switch 12 is not used. Do not change any of the factory settings.
Bit Switch 13: D channel layer 3 (Attachment IE in S: SETUP)
FUNCTION COMMENTS
0 Not used Do not change the factory settings.
1
2 Attachment of calling
ID
0: No 1: Yes
3 Attachment of the
Lower Layer
Capabilities
0: No 1: Yes
4 Attachment of the
Higher Layer
Capabilities
0: Yes 1: No
5 Not used Do not change the factory settings.
6
7
Normally, this bit should be at 0. However, some networks
may require this ID, and in these cases, this bit should be at
1.
This bit determines whether Lower Layer Capabilities are
informed in the [Setup] signal or not.
This bit determines whether Higher Layer Capabilities are
informed in the [Setup] signal or not.
4500L/G4 "I" KIT 2-10 SM
Page 14
Bit Switch 14: D channel layer 3 (Selection IE in S: SETUP)
FUNCTION COMMENTS
0 G3 calling mode
0: 3.1 kHz audio
1: Speech
1 Not used Do not change the factory settings.
2
34Channel selection in
[SETUP] in tx mode
Bit 4 3 Setting
0 0 Any channel
0 1 B1 channel
1 0 B2 channel
1 1 Not used
5 Called ID mapping
0: Called party number
1: Keypad facility
6 Numbering plan for the
called party number
0: Unknown
1: E.164
7 Subaddress
0: IA5 1: BCD
This determines the bearer capability informed in the
[Setup] message. Set this bit to 1 if the ISDN does not
support 3.1 kHz audio. This bit is only used in the USA.
Any channel: When this is informed to the exchanger,
the exchanger will select either B1 or B2.
0: Called ID is mapped to the called party number.
1: Called ID is mapped to the keypad facility.
E.164: This may be used in Sweden if the AXE10
exchanger is fitted with old software.
Unknown: This is the normal setting.
This is normally kept at 0. However, some networks
require this bit to be at 1.
Bit Switch 15: D channel layer 3 (Judgement R: MSG)
FUNCTION COMMENTS
0 Action when receiving
[Setup] containing no
called subaddress, if
the subaddress was
programmed in the
dialed number
0: A reply is sent
1: No reply is sent
1 Not used Do not change the factory settings
2
3
4
5 Global call reference
0: Ignored
1: Global call number
is used
6 Not used Do not change the factory settings.
7
This bit depends on user requirements. If it is at 1,
communication will be halted if the other terminal has not
input their subaddress value.
Global call reference means ’call reference value = 0’. This
bit determines how to deal with such an incoming call if
received from the network.
Keep this bit at 1 in France and Germany.
4500L/G4 "I" KIT 2-11 SM
Page 15
Bit Switch 16: D channel layer 3 (Approval)
FUNCTION COMMENTS
0 Not used Do not change the factory settings.
1
2
3
4
5 Indicated bearer
capabilities
0: 56 k 1: 64 k
6 Not used Do not change the factory settings.
7
Bit Switch 17: Fallback from ISDN G4 to ISDN G3
FUNCTION COMMENTS
0 Condition for fallback from G4 to G3
Bits 0 to 6 of bit switch 17 contain a CPS code, and bits 0 to 6 of bit switch 18 contain
1
another CPS code. If a CPS code is received which is the same as either of these,
2
communication will fall back from ISDN G4 mode to ISDN G3 mode.
3
The CPS codes must be the same as those specified in table 4-13 of CCITT
4
recommendation Q.931.
5
Examples: Bit 6 5 4 3 2 1 0
6
This feature may not be available in Germany; this is not decided yet.
For the codes in bits 0 to 6 of bit switches 17 and 18 to be recognized, bit 7 of bit
switch 17 must be 1. Also, bit 0 of RAM address 00015C (Service Switch 1C) must be
at 0, or Fallback from G4 to G3 will be disabled.
1 0 0 0 0 0 1 CPS code 65
1 0 1 1 0 0 0 CPS code 88
1: 64 k calling is indicated in the Bearer Capabilities, but
communication is at 56 k.
7 This bit determines whether fallback from G4 to G3 occurs on receipt of one of the
CPS codes programmed in bit switch 17 or 18, or on receipt of a certain standard
code.
0: Fallback occurs on receipt of CPS code 63 (UK), 53 (Germany), or 65 (Other areas)
1: Fallback from G4 to G3 occurs on receipt of one of the CPS codes programmed in
bit switch 17 or 18
Bit Switch 18: Fallback from ISDN G4 to ISDN G3
FUNCTION COMMENTS
0 Condition for fallback from G4 to G3
See the explanation for bits 0 to 6 of bit switch 17
1
2
3
4
5
6
7 Not used Do not change the factory setting.
4500L/G4 "I" KIT 2-12 SM
Page 16
Bit Switch 19
FUNCTION COMMENTS
0 Permanence of the link
0: Set/released each
LAPD call
1: Permanent
1 Channel used in ISDN
L2 (64k) mode
0: B1 1: B2
2 Not used Do not change the factory settings.
3
4
5
6
7
Keep this at 1 in the USA. In other areas, this bit is normally
0, depending on network requirements.
When making an IDSN L2 back-to-back test, you can select
either the B1 or B2 channel with this bit switch.
Bit switches 1A to 1F are not used. Do not change any of the factory settings.
4500L/G4 "I" KIT 2-13 SM
Page 17
2.2.2. G4 Parameter Switches
Parameter Switch 0
FUNCTION COMMENTS
0 Network type
Bit 2 1 0 Type
1
x 0 0 Circuit switched ISDN
2
Other settings: Not used
3 Not used Do not change the factory settings.
4
5
6
7
Parameter Switch 1
FUNCTION COMMENTS
0 Voice coding
0: µ law
1: A law
1 Not used Do not change the factory settings.
2
3
4
5
6
7
0: This setting is used in Japan, Taiwan, and the USA.
1: This setting is used in Europe and Asia.
Parameter Switch 2
FUNCTION COMMENTS
01Data rate (kbps)
Bit 1 0 Setting
0 0 64 kbps
0 1 56 kbps
2 Not used Do not change the factory settings.
3
45Transmission mode
Bit 5 4 Mode
0 0 CS
6 Not used Do not change the factory settings.
7
Parameter Switch 3
FUNCTION COMMENTS
0 Link modulus
0: 8 1: 128
Other settings: Not used
Other settings: Not used
This setting determines whether protocol frame numbering
is done using 3 bits (0 to 7 then start again at 0) or 7 bits (0
to 127 then start again at 0). Set this bit switch to match the
network’s specifications.
4500L/G4 "I" KIT 2-14 SM
Page 18
Parameter Switch 3
FUNCTION COMMENTS
1 Not used Do not change the factory settings.
2
3
4
5
6
7
Parameter Switch 4 is not used. Do not change any of the factory settings.
Parameter Switch 5
FUNCTION COMMENTS
0
Link timer
Bit 3 2 1 0 Value
1
0 0 0 0 0
0 0 0 1 1
2
0 0 1 0 2
and so on until
3
1 0 1 0 10
4 Not used Do not change the factory settings.
5
6
7
The link timer is the maximum allowable time between
sending a protocol frame and receiving a response frame
from the remote terminal.
Parameter Switch 6
FUNCTION COMMENTS
0 Layer 3 protocol
0: ISO8208
1: T.70NULL
1 Not used Do not change the factory settings.
2
3
4 Packet modulus
0: 8 1: 128
5 Not used Do not change the factory settings.
6
7
Set this bit to match the type of layer 3 signalling used by
the ISDN.
Do not change the factory setting, unless the machine is
experiencing compatibility problems.
4500L/G4 "I" KIT 2-15 SM
Page 19
Parameter Switch 7
FUNCTION COMMENTS
0
Packet size
Bit 3 2 1 0 Value
1
0 1 1 1 128
1 0 0 0 256
2
1 0 0 1 512
1 0 1 0 1024
3
1 0 1 1 2048
4 Not used Do not change the factory settings.
5
6
7
Parameter Switch 8
FUNCTION COMMENTS
0
Packet window size
Bit 3 2 1 0 Value
1
0 0 0 1 1
0 0 1 0 2
2
and so on until
1 1 1 1 15
3
4 Not used Do not change the factory settings.
5
6
7
This value is sent in the CR packet. This value must match
the value stored in the other terminal, or communication will
stop (CI will be returned). If the other end returns CI, check
the value of the packet window size with the other party.
Note that this value must be the same as the value
programmed for the transport block size (G4 Parameter
Switch B, bits 0 to 3).
This is the maximum number of unacknowledged packets
that the machine can send out before having to pause and
wait for an acknowledgement from the other end.
This should be kept at 7 normally.
If the packet modulus (G4 Parameter Switch 6, bit 4) is 8,
the packet window size cannot be more than 7. However, if
the packet modulus is 128, the window size can be up to 15.
Also, if the layer 3 protocol setting (G4 Parameter Switch 6,
bit 0) is at IS8208, the packet window size cannot be more
than 7.
Parameter Switch 9
FUNCTION COMMENTS
0
LCGN
Bit 3 2 1 0 Value
1
0 0 0 0 0
0 0 0 1 1
2
0 0 1 0 2
and so on until
3
1 1 1 1 15
4 Not used Do not change the factory settings.
5
6
7
4500L/G4 "I" KIT 2-16 SM
Keep the value of the LCGN at 0.
Page 20
Parameter Switch A
FUNCTION COMMENTS
0
LCN
1
Bit 7 6 5 4 3 2 1 0 Value
2
0 0 0 0 0 0 0 1 1
3
0 0 0 0 0 0 1 0 2
4
0 0 0 0 0 0 1 1 3
5
and so on until
6
1 1 1 1 1 1 1 1 255
7
Parameter Switch B
FUNCTION COMMENTS
0
Transport block size
Bit 3 2 1 0 Value
1
0 1 1 1 128
1 0 0 0 256
2
1 0 0 1 512
1 0 1 0 1024
3
1 0 1 1 2048
4 Not used Do not change the factory settings.
5
6
7
This value must match the value set in the other terminal.
Note that this value must be the same as the value
programmed for the packet size (G4 Parameter Switch 7,
bits 0 to 3). Also, the transport block size is limited by the
amount of memory in the remote terminal.
Keep at the value of the LCN at 1.
Parameter Switch C is not used. Do not change any of the factory settings.
Parameter Switch D
FUNCTION COMMENTS
01Back-to-back test mode
Bit 1 0 Setting
0 0 Off
0 1 Not used
1 0 ISDN L2 test mode (TE mode)
1 1 ISDN L2 test mode (NT mode)
2 Not used Do not change the factory settings.
3
4
5
6
7
When doing a back-to-back test, use
these bits to set up one of the machines
in TE mode, and the other in NT mode.
After the test, return both bits to 0.
4500L/G4 "I" KIT 2-17 SM
Page 21
Parameter Switch E
FUNCTION COMMENTS
0 Debug mode - real
time display
0: Off 1: On
1 Debug mode - C/R
frame save
0: Off 1: On
2 Not used Do not change the factory settings.
3
4
5
6
7
If this is switched on, a status code will be displayed in the
bottom right corner of the LCD. These codes are explained
in the Troubleshooting section.
Set this bit to 1 when you wish to print a protocol dump list.
Set it back to 0 after printing.
4500L/G4 "I" KIT 2-18 SM
Page 22
2.3. DEDICATED TRANSMISSION PARAMETERS
The following G4 communication parameter bytes have been added for each
Quick Dial and Speed Dial. For how to program Dedicated Transmission Parameters, refer to the Service Manual for the base machine.
Bytes 1 to 4 are for use with Group 3 communication and are explained in the
Service Manual for the base machine.
Byte 5
FUNCTION
0
Data rate Bit 3 2 1 0 Setting
1
2
3
4 Not used
5
6
7
Byte 6
0
Link modulus Bit 3 2 1 0 Setting
1
2
3
4 Not used
5
6
7
0 0 0 0 64 kbps
0 0 0 1 56 kbps
1 1 1 1 As in Parameter Switch 2, bits 0 and 1
Other settings: Not used
FUNCTION
0 0 0 0 Modulo 8
0 0 0 1 Modulo 128
1 1 1 1 As in Parameter Switch 3, bit 0
Other settings: Not used
Byte 7
FUNCTION
0
Layer 3 protocol Bit 3 2 1 0 Setting
1
2
3
4
Packet modulus Bit 3 2 1 0 Setting
5
6
7
4500L/G4 "I" KIT 2-19 SM
0 0 0 0 IS.8208
0 0 0 1 T.70 NULL
1 1 1 1 As in Parameter Switch 6, bit 0
Other settings: Not used
0 0 0 0 Modulo 8
0 0 0 1 Modulo 128
1 1 1 1 As in Parameter Switch 6, bit 4
Other settings: Not used
Page 23
3. TROUBLESHOOTING
3.1. ERROR CODES
The following error codes will be printed on the Service Monitor Report. See
the Service Manual for the base machine for instructions on how to print this
report.
The meaning of the numbers in the Action column is as follows.
1. Check Layer 1 signalling with a protocol analyzer to determine the cause
of the problem. This may require assistance from a G4 specialist.
2. Repeat the communication. If the problem does not repeat itself, the problem was a temporary one caused by the user connecting the machine to
another interface. However, if the problem remains, there is a network
problem.
3. There is a network problem.
4. There is a network problem. Do the following:
• Check the error bit rate of the network. If it is high, contact the network
and ask them to improve the line.
• Check the network speed (is it 56 or 64 kbps), and make sure that the
bit switch setting is correct. You may also use the dedicated transmission parameters if this problem only occurs when dialling certain numbers.
• Check that the user dialled the correct number.
5. There is a network problem, or a problem in the machine at the other end.
6. There is a problem in the machine at the other end; ask a technician to
check it.
7. The machine at the other end is not a Group 4 fax terminal.
8. The machine is not compatible with the machine at the other end. A compatibility test is needed.
4500L/G4 "I" KIT 3-1 SM
Page 24
3.1.1. D-channel, Layer 1
Code Probable Cause Action
7-00 T3 timeout (layer 1 activation error) 1
7-01 No connection on the S0 interface 1
7-02 Deactivated 1
3.1.2. D-channel Link Layer
Code Probable Cause Action
7-20 At the start of link set-up, the machine received an unsolicited S (F=1). 2
7-21
7-22 At TEI release, the machine received an unsolicited UA (F=1). 2
7-23
7-24 At TEI release, the machine received an unsolicited UA (F=0). 2
7-25 SABME received at the start of network link set-up No error
7-26 N200 retransmission error for SABME 2
7-27 N200 retransmission error for DISC 2
7-28 N200 retransmission error for situation enquiry (RR) 2
7-29 N(R) sequence number error 3
7-30 N(S) sequence number error 3
7-31 FRMR received 3
7-32 Non-standard frame received 3
7-33 Abnormal frame length 3
7-34 N201 error; information field N in the I frame exceeded N201 3
7-35 T201 timeout; timeout while waiting for checking 3
7-36 T202 timeout; timeout while waiting for ID assignment 3
At the start of link set-up, the machine received an unsolicited DM
(F=1).
At the start of link set-up, the machine received an unsolicited DM
(F=0).
2
2
3.1.3. D-channel Network Layer
Code Probable Cause Action
7-40 Insufficient mandatory information elements 3
7-41 Abnormal LI for a mandatory information element 3
7-42 T301 timeout; timeout while waiting for R:CONN 3
7-43 T303 timeout; timeout while waiting for R:CALL-PROC etc. 3
7-44 T304 timeout; timeout while waiting for R:CALL-PROC etc. 3
7-45 T305 timeout; timeout while waiting for R:REL 3
7-46 T308 timeout; timeout while waiting for R:REL-COMP 3
7-47 T310 timeout; timeout while waiting for R:ALERT etc. 3
7-48 T313 timeout; timeout while waiting for R:CONN-ACK 3
7-49 Internal error 3
7-51 Release call reference during communication 3
4500L/G4 "I" KIT 3-2 SM
Page 25
3.1.4. B-channel Link Layer
Code Probable Cause Action
7-60 T3 timeout; timeout while waiting for flag 4
7-61 T3 timeout; timeout while waiting for SABM during an incoming call 4
7-62 T1 timeout x N2; timeout while waiting for UA after sending SABM 5
7-63
7-64
7-65 T1 timeout x N2; timeout while waiting for a response to DISC 5
7-66 RNR x N2 (other end busy, RCB counter error) 5
7-67 Invalid (Ad) frame received 5
7-68 Invalid short frame received 5
7-69 Link reset error 5
7-70 FRMR received 5
7-71 Non-standard (Cn) frame received 5
7-72 An S or U frame having an information field was received 5
7-73 A frame longer than the maximum N1 length was received 5
7-74 An S or I frame having an N(R) error was received 5
7-75 CRC error 3
T1 timeout x N2; timeout while waiting for a response to a transmitted
S frame (P=1)
T1 timeout x N2; timeout while waiting for SABM or DISC after
sending FRMR
5
5
3.1.5. B-channel Network Layer
Code Probable Cause Action
7-80 A packet having an abnormal GFI was received 6
7-81
7-82 A packet containing a format error was received 6
7-83 A packet containing an LI error was received 7
7-84 A CN packet was received that had a PID different from 02 7
7-85 Unsupported packet type received 7
7-86 Abnormal or unsupported facility received 7
7-87 P(s) sequence number error 6
7-88 P(r) sequence number error 6
7-89 A reset using S:RQ or R:RI occurred 6
7-90 A restart using S:RQ or R:SI occurred 6
7-91
7-92 T20 timeout; timeout while waiting for an SF packet 6
7-93 T21 timeout; timeout while waiting for a CC packet 6
7-94 T22 timeout; timeout while waiting for an RF packet 6
7-95 T23 timeout; timeout while waiting for a CF packet 6
7-96 T10 timeout; timeout while waiting for the first frame 6
A packet was received that had a logical channel number different
from the logical channel being used for the communication
Call set-up error; in reply to S:CR, R:CI was received to indicate
rejection of the call
6
7
4500L/G4 "I" KIT 3-3 SM
Page 26
3.1.6. Transport Layer
Code Probable Cause Action
8-00 Invalid block received 8
8-01 TCC block received 8
8-02 TBR block received 8
8-05 TCR block; block format error 8
8-06 TCR block; block size parameter LI error 8
8-07 TCR block; extended addressing LI error 8
8-08 TCR block; block size length error 8
8-10 TCA block; block format error 8
8-11
8-12 TCA block; octet 7 did not equal 0 8
8-13 TCA block; extended addressing LI error 8
8-14 TCA block; block size exceeded that set by TCR 8
8-15 TCA block; block size parameter LI error 8
8-20 TDT block; block format error 8
8-21 TDT block; octet 3 did not equal either 00 or 80(H) 8
8-22
8-23
8-26 Timeout during state 0.2 8
8-27 Timeout during state 1.1 8
8-28 Timeout during state 0.3 8
TCA block; Tx origin reference data in TCR disagreed with the
address reference data in TCA
TDT block; the end indicator was "Continue" even though there was
no field data
TDT block; and end block with no field data was received after an end
indicator of "End"
8
8
8
3.1.7. Session Layer
Code Probable Cause Action
8-30 Invalid frame received 8
8-31 RSSN received 8
8-32 CSA received 8
8-34 Calling terminal identification error in CSS 8
8-35 Date and time error in CSS 8
8-36 Window size error in CSS 8
8-37 Service identification error in CSS 8
8-38 Session user data error in CSS 8
8-39 CSS rejected (new session rejected) 8
8-40 Called terminal identification error in RSSP 8
8-41 Date and time error in RSSP 8
4500L/G4 "I" KIT 3-4 SM
Page 27
Code Probable Cause Action
8-42 Date and time in RSSP was not the same as that in CSS 8
8-43 Window size error in RSSP 8
8-44 Service identification error in RSSP 8
8-45 Session user data error in RSSP 8
8-47 Message synchronization error inside the CCU 8
8-48 Document task busy 8
8-50 Ti timeout; non-communication surveillance timer (T.62) 8
8-51 T2 timeout; timeout while waiting for a response (T.62) 8
8-52 T3 timeout; CSA timer timeout (T.62) 8
8-53
8-54
8-55 G4 board load timer timeout; called side waited too long for S:RSSP 8
8-56
8-57
G4 board load timer timeout; calling side waited too long for a new
session
G4 board load timer timeout; calling side waited too long for transport
probability
G4 board load timer timeout; document transmission surveillance
timer timeout
G4 board load timer timeout; timeout while waiting for a user abort
request after a provider fail
3.1.8. Document Layer
8
8
8
8
Code Probable Cause Action
8-60 T.62 coding format error (LI error) 8
8-61 A mandatory PI was absent, or the LI for a mandatory PI was 0 8
8-62
8-63 The LI for session user data exceeded the maximum value (512) 8
8-64 The LI for CDUI was not 0 8
8-65
8-66 The checkpoint reference number differed from the expected value 8
8-70 RDGR received 8
8-71 A non-standard PDU was received while in calling mode 8
8-72 A non-standard PDU was received while in called mode 8
8-73 Abnormal PDU received while in calling state ds1 8
8-74 15 consecutive CDCL signals received 8
8-75 Session window size control error (size not equal to 0) 8
8-76 Internal error 8
Calling/called terminal identification LI was different from that
specified by F.184 (LI = 24)
Checkpoint and document reference numbers LI error, or they were
not in T.61 (ASCII) coding
8
8
4500L/G4 "I" KIT 3-5 SM
Page 28
3.1.9. Presentation Layer
Code Probable Cause Action
8-80 X.209 coding error in session user data (LI error) 8
8-81 PV error in session user data 8
8-82 PI error in session user data 8
8-83
8-84 X.209 coding error in the DP (LI error) 8
8-85
8-86 SLD object type absent 8
8-87 PI error in the SLD (document descriptor/page descriptor) 8
8-88
8-89 No document descriptor at the start of the document 8
8-90 No page descriptor at the start of the page 8
8-91 Page descriptor PV error 8
8-92 X.209 coding error in the TU (LI error) 8
8-93 The TU was absent 8
8-94 PV error in the TU 8
8-95 TI error 8
8-96 X.209 coding nest level > 8, or an LI form error 8
8-97
The capabilities in the session user data of CDS/CDC were not the
same as those in RDCLP
X.209 coding error in the SLD (document descriptor/page descriptor)
(LI error)
The capabilities in the SLD (document descriptor/page descriptor) are
duplicated or are not the same as those in RDCLP
CDPB/CDE received while TU/TI not yet completed, or an
unexpected PDU was received while analyzing an SLD
8
8
8
8
4500L/G4 "I" KIT 3-6 SM
Page 29
3.2. G4CCU STATUS CODES
The display of G4CCU status codes is affected by the Real Time Display
On/off setting (G4 Parameter Switch E, bit 0).
• If Real Time Display is off (the bit is 0; this is the default setting), there is
no indication on the operation panel.
• If Real Time Display is on (the bit is 1), the codes are fully displayed on
the operation panel.
The codes are defined in the following pages.
3.2.1. Layer 1 (Physical Layer)
Code (H) Status Code (H) Status
10 Ready E0 R: [DISC]
01 S: [SETUP] E1 S: [REL]
02 R: [CALL_PROC] E3 R: [REL_COMP]
03 R: [CONN] E4 R: [STAT]
04 S: [CONN_ACK] E5 R: [STAT_ENQ]
05 R: [SETUP ACK] F0 S: [DISC]
06 R: [ALERT] F1 R: [REL]
11 R: [SETUP] F2 S: [REL_COMP]
12 S: [CALL_PROC] F3 S: [STAT]
13 S: [CONN]
14 R: [CONN_ACK]
3.2.2. Layer 2 (Link Layer)
Code (H) Status Code (H) Status
20 S: SABM, or R: SABM D0 S: DISC, or R: DISC
21 S: UA, or R: UA D1 S: DM, or R: DM
22 S: FRMR, or R: FRMR
28 S: SABME, or R: SABME
4500L/G4 "I" KIT 3-7 SM
Page 30
3.2.3. Network Layer (Layer 3)
Code (H) Status Code (H) Status
30 S: CR C2 S: SQ
31 R: CC C3 R: SF
38 R: CN CA R: SI
39 S: CA CB S: SF
32 S: GF C4 S: RQ
3A R: GQ C5 R: RF
3B R: GF CC R: RI
C0 S: CQ CD S: RF
C1 R: CF C6 R: IT
C8 R: CI C7 R: IF
C9 S: CF CE R: DIAG
3.2.4. Transport Layer (Layer 4)
Code (H) Status Code (H) Status
40 S: TCR, or R: TCR 42 S: TBR, or R: TBR
41 S: TCA, or R: TCA 43 S: TCC or R: TCC
3.2.5. Session Layer, Session Control Layer (Layer 5)
Code (H) Status Code (H) Status
50 S: CSS, or R: CSS 56 S: RSUI, or R: RSUI
51 S: RSSP, or R: RSSP A0 S: CSA, or R: CSA
52 S: RSSN, or R: RSSN A1 S: RSAP, or R: RSAP
53 S: CSCC, or R: CSCC A2 S: CSE, or R: CSE
54 S: RSCCP, or R: RSCCP A3 S: RSEP, or R: RSEP
3.2.6. Session Layer, Document Control Layer (Layer 5)
Code (H) Status Code (H) Status
60 S: CDCL, or R: CDCL 90 S: CDE, or R: CDE
61 S: RDCLP, or R: RDCLP 91 S: RDEP, or R: RDEP
62 S: CDS, or R: CDS 92 S: CDD, or R: CDD
63 S: CDC, or R: CDC 93 S: RDDP, or R: RDDP
64 S: CDPB, or R: CDPB 94 S: CDR, or R: CDR
65 S: RDPBP, or R: RDPBP 95 S: RDRP, or R: RDRP
70
S: CDUI, or R: CDUI (Data
phase - layer 6 and facsimile
data)
96 S: RDGR, or R: RDGR
97
S: RDPBN, or R: RDPBN
4500L/G4 "I" KIT 3-8 SM
Page 31
3.3. G4CCU LED DISPLAY
There are six LEDs on the G4CCU board, as shown below.
LED 5 LED 6
LED 1 LED 2 LED 3 LED 4
These LEDs give the following information about the status of the machine.
O = ON, -- = OFF
Initial Settings
Power-up/Reset O O
-- -- -- --
Initial setting request from FCU -- O
-- -- -- --
Initial setting confirmation to FCU -- --
-- -- -- --
Communication
Layer 1 activated -- --
O -- -- --
Layer 2 set -- --
O O -- --
B channel connected (ISDN G4) -- --
O O O --
B channel connected (ISDN G3) -- --
O O -- O
B channel released -- --
O O -- --
Layer 2 released -- --
O -- -- --
Layer 1 deactivated -- --
-- -- -- -The following will be displayed if bit 1 of G4 parameter switch E is at 1.
B channel: send I frame (A blinks at this time if bit 1 of -- A
G4 parameter switch E is at 1) O O O --
B channel: receive I frame (B blinks at this time if bit 1 of B -G4 parameter switch E is at 1) O O O --
4500L/G4 "I" KIT 3-9 SM
Page 32
Note: At the start and end of communication, both A and B will blink.
4500L/G4 "I" KIT 3-10 SM
Page 33
3.4. BACK-TO-BACK TESTING
To make a back-to-back test, you need:
• Two machines (they must be the same model)
• The 5 m cable supplied with the ISDN Option Kit
The procedure is as follows.
1. Switch off the machines
2. Connect two machines back-to-back using four lengths of wire as follows.
3. Make the following bit switch adjustments:
• In the machine acting in NT mode, set bits 0 and 1 of G4 parameter
switch 0D to 1.
• In the machine acting in TE mode, set bit 0 of G4 parameter switch 0D
to 0 and bit 1 to 1.
4. Reset the machine by switching it off, waiting a few seconds, then switching back on.
5. Place a document in one of the machines, dial a number, then press Start.
6. After you have finished the test, set bits 0 and 1 of G4 parameter switch
0D back to 0. then reset the machine.
Note: The following cannot be tested using this procedure:
• ISDN G3 communication
• P to M
4500L/G4 "I" KIT 3-11 SM
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