Line 1 Dial Pulse Generation Signal | Toshiba GD-1201, GD-1260

EU/AU/AS/C models

NCU board

+12V RLY3

CML relay

112

+5V

Q4

3

FAX board

3 CML1 21

4 Lb 4

1 5

0 3

6 1

AG

IC29

[IC26]

Line

External telephone

	3	La	1	8
	3	La	9	10
CN3			0	10
CN3	2	a2
	2	a2
	5	b2

IC1

42

Q6

SG

T1

AG

Ring signal

detection

circuit

4

Line path switching circuit

CN4

CN501

4 LD1 20

ASIC

Fig. 4-10

The dial pulse generation circuit consists of the photocoupler (IC1), the ASIC (IC29 [IC26]) on the FAX board and the other peripheral devices. It generates the dial pulses in the FAX transmission and dialing to the outside.

The ASIC makes the CML1 signal become HIGH to connect the line to the MODEM side. To generate the dial pulses, the ASIC makes the LD1 signal become HIGH to turn ON Q6. This allows the photocou- pler to come on and the current flows through the line for sending a dial attempt.

Signal Name	Type	Active	Description	Destination

LD1	O	H	Line 1 Dial Pulse Generation Signal	Q6

*Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and GD-1151/1201.

GD-1150/1151/1200/1201/1160/1260	© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
ELECTRICAL CIRCUITS

4 - 10

08/03

Image 72

Toshiba GD-1201, GD-1260, GD-1160, GD-1151, Model: GD-1150 service manual Line 1 Dial Pulse Generation Signal

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 board Specifications 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 detected Dimension width x length Printing area Comp Features Specifications and Outline of System Accessories and Parts Following accessories and parts come with the FAX unitQty Options STUDIO230/280STUDIO281c/351c/451c Option Function Model STUDIO352/353/452/453 STUDIO202L/203L/232/233/282/283 seriesGD-1260NA/TW/EU/C System List GD-1150NA/TW/EU AU/AS/C GD-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 FAX FAX 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 function Specifications and Outline of System Recording Mode LSU-RELATED Functions Recording 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, Folio Setting 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 Saver Memory Reception Circuit Connection and Procedure to Change Mode Dial call-up transmission to a telephone circuitYES Standby state Selection of the communication mode Procedure to select the transmission modeCommunication mode Toshiba original procedure Telephone circuit Signaling System Diagram and Signal Forms Circuit control signalsThis signal can be sent manually Signal form Signal name Signal form Communication with the binary signals Image signal Mode change is possible only for the original set manuallyMode change possible Informing that there is the next Receiver Only error frame retransmitted 1 completed 2 completed Frames received Error occurred JOB Status button Cancel button CED NsfcsidisCFR MCF Binary signals PIP PINPRI-EOM PRI-MPS When this frame is the last frame, X = FCF FIF FCSFormat FCF format of each binary signal Binary signal Format 9600 bps, 7200 bps 4800 bps, 2400 bpsTCF 3 V.8/V.34 communication sequence Standard procedure Transmitter Receiver Line closed Signal name Abbreviation Function Remarks Tone signal between Hz and 3,750 Hz in units150 Hz Data transmission TRN ALT Flag Maintains the synchroniza 7E H TionReceives an NSF sent from Transmitter Image data Image data are sent. Transmitter Scrambled data frame to beIs completed Encoded image data Turn off Scrambled 1 is sent for Short training Signal PPS-EOPTransmission of one Is completed Flag Informs to disconnect the line Line closed DIS cannot be recognized DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control FAX Automatic Switching TEL modeFAX mode General functions Configuration Electrical Circuits FAX PWR STUDIO202L/203L/232/233/282/283 GD-1151 GD-1260 95C265 4Mbit x MN86064 Configuration Description of Circuits EU/AU/AS/C models Line path switching control circuit Signal Name Type Active Description DestinationCML1 ATT3DB1 RLY3, IC3 IC3IC5 Line 1 Dial Pulse Generation Signal Q53 Dial pulse generation circuit Line 1 Dial Pulse Generation Signal Line Current Detection Signal IC29 IC26 Line Reverse Current Detection Signal IC29 IC26Line current detection circuit REVA1 Line 1 Current Detection Signal IC29 IC26 Current Reverse Line 1 Current Detection IC29 IC26 Signal Line 1 CI Detect Signal IC29 IC26 CI detection circuit Line 1 CI Detection Signal IC29 IC26 Line monitor circuit NCU board Line1 Monitoring signal Ringer/AlarmLine Monitor LOW High Relation between the signals and sound volume is as follows Sound volume PC Boards PWA-F-FAX-562 / PWA-F-FAX-610 PWA-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-563 PWA-F-FAX-POWER-610 PWA-F-MDM-631 PWA-F-FAX-POWER-631 Electrical Circuits Installation Explanation to the Users Installation