DIALING/COMMUNICATION Control | Toshiba GD-1270, GD-1260, GD-1250

-Change of the image transmission speed by the transmitter

The transmitter sends a PPh signal after sending the image data. The receiver returns a PPh sig- nal. Then, the image transmission speed is determined according to the MPh sequence sent from the both modems.

Transmitter

Receiver

3

	Fig. 3-12
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	DIALING/COMMUNICATION CONTROL

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Toshiba GD-1270, GD-1260, GD-1250, GD-1160, GD-1210 service manual DIALING/COMMUNICATION Control

Contents

GD-1210/1250/1270/1160/1260 Trademarks Transportation/Installation General Precautions at Service Vorsicht When the option has been installedPage Contents Explanation to the Users Installation Models FAX unit 2nd line for FAX unit FAX Options Original size SpecificationsFolio DBm to 0 dBm Level -55 dBm or lower cannot be detected DBm to -8 dBm The setting can be changed by 1 dBTransmission system Embedded ST-R Paper size Dimension width x length Printing areaComp Features 11/04 Parts GD-1210 GD-1250 GD-1270 Accessories and PartsFollowing accessories and parts come with the FAX unit Accessory GD-1210 GD-1250 GD-1270 Options Extends the FAX functions when the FAX unit is installed Ments to be output Option Function STUDIO206L/256/306/356 STUDIO2500c/3500c/3510c System List NA/AU/EU/C/TW STUDIO2330C/2820C/2830C/3520C/3530C/4520C STUDIO5520C/6520C/6530C Offset Tray MJ-5005 STUDIO205L/255/305/355/455 NA/EU-N/AU/C STUDIO555/655/755/855 Pedestal PFP Feeder LCF KD-1027/C KD-1028 A4/LT/C STUDIO2040C/2540C/3040C/3540C/4540C STUDIO5540C/6540C/6550C STUDIO556/656/756/856 Saddle stitch Finisher MJ-1106/C STUDIO206L/256/306/356/456Inner Finisher MJ-1032 Saddle stitch MJ-1033 Overview LINE2 connector Line connector TEL connectorReversing automatic document feeder TEL connector Line connectorDrawers STUDIO5520C/6520C/6530C, e-STUDIO5540C/6540C/6550C STUDIO205L/255/305/355/455, e-STUDIO206L/256/306/356/456 Power switch TEL connector Line connector LINE2 connector STUDIO555/655/755/855, e-STUDIO556/656/756/856 Power switch LINE2 connector Line connector TEL connector NCU MDM FAX FAX PWR Symbol Name FunctionLayout of PC Boards FAX FAX PWR LSU-RELATED Functions Recording Mode Recording paper selection algorithm Recording Paper Selection Algorithm and Printing AlgorithmPrinting algorithm ST against A3/B4/A4/LD/LT size originals respectively Discard function Length of B Discard parameter Set value Effective printing lengthOFF A5 , Comp LT, Comp COMP, LD LG/LT, LD ST, Folio B5, Folio B4, A3 A4, B4 B5, B4 A5, A4 Setting for the split recording Recording Paper and Function Others Table of the recording paper selection modesPriority Energy Saver Energy Saver ModeUser Functions Receiving FAX document, or by Memory Reception Standby state Circuit Connection and Procedure to Change ModeDial call-up transmission to a telephone circuit YES Telephone circuit Selection of the communication modeProcedure to select the transmission mode Communication mode Toshiba original procedure Signal name Signal form Signaling System Diagram and Signal FormsCircuit control signals This signal can be sent manually Signal form Communication with the binary signals Receiver Image signalMode change is possible only for the original set manually Mode change possible Informing that there is the next Frames received Error occurred Only error frame retransmitted 1 completed 2 completed MCF JOB Status button Cancel buttonCED Nsfcsidis CFR Binary signals PRI-MPS PIPPIN PRI-EOM FCF FIF FCS When this frame is the last frame, X =Format Binary signal Format FCF format of each binary signal 4800 bps, 2400 bps 9600 bps, 7200 bpsTCF 3 V.8/V.34 communication sequence Line closed Standard procedure Transmitter Receiver Signal name Abbreviation Function Remarks Data transmission Tone signal betweenHz and 3,750 Hz in units 150 Hz ALT TRN Transmitter FlagMaintains the synchroniza 7E H Tion Receives an NSF sent from Encoded image data Turn off Scrambled 1 is sent for Image data Image data are sent. TransmitterScrambled data frame to be Is completed Informs to disconnect the line Short training SignalPPS-EOP Transmission of one Is completed Flag Line closed DIS cannot be recognized Transmitter Receiver Transmitter Receiver DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control General functions FAX Automatic SwitchingTEL mode FAX mode GD-1210 GD-1160 Configuration GD-1250 / GD-1270 GD-1260 Description of Circuits Configuration EU/AU/AS/C models ATT3DB1 Line path switching control circuitSignal Name Type Active Description Destination CML1 IC3 RLY3, IC3IC5 Dial pulse generation circuit Line 1 Dial Pulse Generation Signal Q53 Line 1 Dial Pulse Generation Signal REVA1 Line Current Detection Signal IC29 IC26Line Reverse Current Detection Signal IC29 IC26 Line current detection circuit Current Reverse Line 1 Current Detection IC29 IC26 Signal Line 1 Current Detection Signal IC29 IC26 CI detection circuit Line 1 CI Detect Signal IC29 IC26 Line 1 CI Detection Signal IC29 IC26 NCU board Line1 Line monitor circuit LOW High Monitoring signalRinger/Alarm Line Monitor Sound volume Relation between the signals and sound volume is as follows PWA-F-FAX-631 GD-1210 PC Boards PWA-F-FAX-670 GD-1250/1270 08/04 08/04 PWA-F-MDM-563 GD-1160 PWA-F-MDM-671 GD-1260 PWA-F-FAX-POWER-631 GD-1210 Electrical Circuits Explanation to the Users Installation Installation