Circuit Connection and Procedure to Change Mode | Toshiba GD-1220

3.DIALING/COMMUNICATION CONTROL

3.1Circuit Connection and Procedure to Change Mode

3.1.1Dial call-up transmission to a telephone circuit

START

Detecting a calling signal?				YES
Detecting a calling signal?
	NO
	NO
				YES
Detecting an off-hook signal?				YES
Detecting an off-hook signal?
	NO
	NO


DC circuit closed

After detecting the dial tone, or 3.3 seconds elapsed

Selection signal sent out


	END			Standby state

3

© 2006 - 2008 TOSHIBA TEC CORPORATION All rights reserved	GD-1220/1221
	DIALING/COMMUNICATION CONTROL

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Toshiba GD-1220 Circuit Connection and Procedure to Change Mode, Dial call-up transmission to a telephone circuit, Yes

Contents

GD-1220/1221 Page Transportation/Installation Vorsicht Important Service Parts for Safety Contents 2006 2008 Toshiba TEC Corporation All rights reserved System firmware version FAX OptionsGD-1220 GD-1221 Remarks STUDIO165/205 Available STUDIO167/207/237 Specifications 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 Comp Dimension width x length Printing areaFolio Features Specifications and Outline of System 08/08 Accessory Qty Accessories and PartsFollowing accessories and parts come with the FAX unit Option Function Model Extends the FAX functions when the FAX unit is installedOptions ADF Radf System ListNA/EU/AU/TW Units and Components PWA-F-NCU-631 Symbol Name FunctionLayout of PC Boards FAX Recording paper size LSU-RELATED Functions Size Horizontal x Vertical Effective recording area Effective recording area 297 x 293 x A4-R 210 x 206 x A5-R 148 x 144 x 257 x 253 x For MJD, AUD, ASD, SAD, TWD, and CND models Unit mm inchInch Feed direction Mm 0.16 inch Effective recording area Size Horizontal x Vertical Effective recording range Print mode Print algorithm Recording paper selection algorithm and print algorithmRecording paper selection algorithm Judgment parameter Reception print flowchart Start Receive FAX Bit Discard parameter Discard printing Vertical reduction print Similar reduction print RTI Scanning width For MJD, AUD, ASD, SAD, TWD, CND modelsScanning ST-R Comp Recording paper range A4-R For MJD, AUD, ASD, SAD, TWD, and CND modelsRecording paper range Folio Folio *1 Recording paper range LT long Comp long LD longComp *2 Comp *1 Recording paper range A4 long B4 long A3 long Error processing Order Drawer Limitations on reception print LSU-RELATED Functions 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 Receiver Communication with the binary signalsImage signal Mode change is possible only for the original set manually Frames received Error occurred Only error frame retransmitted 1 completed 2 completed MCF CED NsfcsidisCFR Binary signals PRI-MPS PIPPIN PRI-EOM Format When this frame is the last frame, X =FCF FIF FCS Binary signal Format FCF format of each binary signal TCF 9600 bps, 7200 bps4800 bps, 2400 bps 3 V.8/V.34 communication sequence Line closed Standard procedure Transmitter Receiver Signal name Abbreviation Function Remarks Frequency transmission Capability Tone signal betweenHz and 3,750 Hz in units 150 Hz ALT TRN Receiver Maintains the synchroniza 7E H TionReceives an NSF sent from Transmitter 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 Line closed DIS cannot be recognized DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control General functions FAX Automatic SwitchingTEL mode FAX mode DIALING/COMMUNICATION Control GD-1220/1221 Configuration Description of Circuits Configuration EU/AU/AS/C models ATT3DB1 Line path switching control circuitSignal Name Type Active Description Destination CML1 IC5 RLY3, IC3IC3 Dial pulse generation circuit Line 1 Dial Pulse Generation Signal Q53 Line 1 Dial Pulse Generation Signal REVA1 Line Current Detection Signal IC23Line Reverse Current Detection Signal IC23 Line current detection circuit Current Reverse Line 1 Current Detection IC23 Signal Line 1 Current Detection Signal IC23 CI detection circuit Line 1 CI Detect Signal IC23 Line 1 CI Detection Signal IC23 FAX board Line monitor circuit LOW High Monitoring signalRinger/Alarm Line Monitor Sound volume PWA-F-FAX-635 GD-1220 PC Boards PWA-F-FAX-678 GD-1221 PWA-F-NCU-631 NAD, TWD, SAD PWA-F-NCU-631 MJD, AUD, ASD, CND Electrical Circuits Explanation to the Users Installation Installation