Toshiba GD-1151, GD-1260, GD-1160, GD-1201 service manual 9600 bps, 7200 bps, 4800 bps, 2400 bps, Tcf

Page 48

(4)Training

The training is performed in the binary procedure to surely transmit the image signals.

•Training signal

The training signal is transmitted following the DCS signal at the modem speed specified by the DCS signal. Responding to this training signal, the receiving side adjusts the auto-equal- izer.

•Format of the training signal - 14.4 Kbps, 12 Kbps

 

Segment 1

Segment 2

Segment 3

Segment 4

 

 

 

 

 

 

 

 

 

 

Alternation

Equalizer

Chain-store

 

 

 

 

adjustment

information

Scrambled binary data “1”

 

TCF

 

of ABAB

 

 

pattern

sequence

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

106 msec

1240 msec

27 msec

20 msec

 

 

 

 

 

 

 

 

 

 

 

 

 

1393 msec

 

 

 

 

 

 

 

 

 

 

 

-9600 bps, 7200 bps

Segment 1 Segment 2 / Segment 3

Segment 4

V.29

No signal

Repeating 2-state

signal

 

 

(Binary)

 

 

20 msec

53 msec+160 msec

 

 

 

 

 

253 msec

 

 

 

 

 

Scrambled data “1”

TCF

(Hexa or octal)

20 msec

-4800 bps, 2400 bps

 

Segment 1Segment 2 Segment 3

Segment 4

Segment 5

 

 

 

 

 

 

 

 

 

Non-

 

Continuous

0° to 180°

 

 

 

 

180° phase

 

 

V.27ter

modulated

No signal

2-phase pattern

Scrambled data “1”

TCF

inversion

 

carrier

 

 

 

 

 

 

(Binary)

(Binary)

(Hexa or octal)

 

 

 

 

 

 

 

 

 

 

 

 

4,800 bps: 923 msec,

2,400 bps: 1158 msec

•TCF signal

An error may occur in the image data if the training is not performed correctly. The transmit- ting side sends a TCF signal and checks if any error occurs in image data before the image data communication to follow. When the receiving side detects an error in the TCF signal, it transmits an FTT signal to the transmitting side to request the retraining. When there is no error, the receiving side transmits a CFR signal.

The TCF signal transmits all zeros for 1.5 seconds at the same modem speed as that for the training signal.

GD-1150/1151/1200/1201/1160/1260

© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved

DIALING/COMMUNICATION CONTROL

 

3 - 12

04/06

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Contents GD-1150/1151/1200/1201/1160/1260 Trademarks Model Weight Number of people STUDIO3511/4511STUDIO281c/351c/451c Service of Machines Precautions against Static Electricity Page Contents 2003 2008 Toshiba TEC Corporation All rights reserved FAX Options FAX unit 2nd line for FAX boardSpecifications Original sizeFolio DBm to -8 dBm The setting can be changed by 1 dB Transmission systemEmbedded DBm to 0 dBm Level -55 dBm or lower cannot be detectedDimension width x length Printing area CompFeatures Specifications and Outline of System Accessories and Parts Following accessories and parts come with the FAX unitQty Options STUDIO230/280STUDIO281c/351c/451c Option Function ModelSTUDIO352/353/452/453 STUDIO202L/203L/232/233/282/283 seriesGD-1260NA/TW/EU/C System List GD-1150NA/TW/EU AU/AS/CGD-1150NA/TW/EU Bridge Kit KN-3511 FAX Board GD-1200 Finisher Hanging type e-STUDIO352/353 only MJ-1022 GD-1150NA/TW/EU AU/AS/C/KR Units and Components Symbol Name Function Remarks Layout of PC BoardsFAX MDM NCU FAXFAX power board Supplies the power -12V, +24V STUDIO281c/351c/451c, e-STUDIO352/353/452/453MDM FAX FAX PWR NCU FAX control board Controls the FAX functionSpecifications and Outline of System Recording Mode LSU-RELATED FunctionsRecording Paper Selection Algorithm and Printing Algorithm Recording paper selection algorithmPrinting algorithm ST against A3/B4/A4/LD/LT size originals respectively Effective printing length Discard function Length of B Discard parameter Set valueOFF B4, A3 A4, B4 B5, B4 A5, A4 A5 , Comp LT, Comp COMP, LD LG/LT, LD ST, Folio B5, FolioSetting for the split recording Recording Paper and Function Table of the recording paper selection modes OthersPriority Energy Saver Mode User FunctionsReceiving FAX document, or by Energy SaverMemory Reception Circuit Connection and Procedure to Change Mode Dial call-up transmission to a telephone circuitYES Standby stateSelection of the communication mode Procedure to select the transmission modeCommunication mode Toshiba original procedure Telephone circuitSignaling System Diagram and Signal Forms Circuit control signalsThis signal can be sent manually Signal form Signal name Signal formCommunication with the binary signals Image signal Mode change is possible only for the original set manuallyMode change possible Informing that there is the next ReceiverOnly error frame retransmitted 1 completed 2 completed Frames received Error occurredJOB Status button Cancel button CED NsfcsidisCFR MCFBinary signals PIP PINPRI-EOM PRI-MPSWhen this frame is the last frame, X = FCF FIF FCSFormat FCF format of each binary signal Binary signal Format9600 bps, 7200 bps 4800 bps, 2400 bpsTCF 3 V.8/V.34 communication sequence Standard procedure Transmitter Receiver Line closedSignal name Abbreviation Function Remarks Tone signal between Hz and 3,750 Hz in units150 Hz Data transmissionTRN ALTFlag Maintains the synchroniza 7E H TionReceives an NSF sent from TransmitterImage data Image data are sent. Transmitter Scrambled data frame to beIs completed Encoded image data Turn off Scrambled 1 is sent forShort training Signal PPS-EOPTransmission of one Is completed Flag Informs to disconnect the lineLine closed DIS cannot be recognized DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control FAX Automatic Switching TEL modeFAX mode General functionsConfiguration Electrical CircuitsFAX PWR STUDIO202L/203L/232/233/282/283 GD-1151 GD-1260 95C265 4Mbit x MN86064 Configuration Description of CircuitsEU/AU/AS/C models Line path switching control circuit Signal Name Type Active Description DestinationCML1 ATT3DB1RLY3, IC3 IC3IC5 Line 1 Dial Pulse Generation Signal Q53 Dial pulse generation circuitLine 1 Dial Pulse Generation Signal Line Current Detection Signal IC29 IC26 Line Reverse Current Detection Signal IC29 IC26Line current detection circuit REVA1Line 1 Current Detection Signal IC29 IC26 Current Reverse Line 1 Current Detection IC29 IC26 SignalLine 1 CI Detect Signal IC29 IC26 CI detection circuitLine 1 CI Detection Signal IC29 IC26 Line monitor circuit NCU board Line1Monitoring signal Ringer/AlarmLine Monitor LOW HighRelation between the signals and sound volume is as follows Sound volumePC Boards PWA-F-FAX-562 / PWA-F-FAX-610PWA-F-FAX-670 PWA-F-NCU-US-562/PWA-F-NCU-631-US PWA-F-NCU-EU-562/PWA-F-NCU-631-EU PWA-F-MDM-563PWA-F-FAX-POWER-610 PWA-F-MDM-631PWA-F-FAX-POWER-631 Electrical Circuits Installation Explanation to the UsersInstallation
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