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Chapter 4

General Information and Features

56

4.11

Auto Fallback And Fall Forward

When auto fallback & fall forward is enabled in V.34 or V.32bis mode, the modem
will automatically initial a V.34 or V.32bis rate renegotiation when the line
condition changes, so that the optimum available data rate is always select with
minimal interruption to user data.

To use this function, the "FF/FB control " under "CONFIG MODEM” menu must
set to be on.

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Содержание T-336Cx

Страница 1: ...9 P N 07008 00027 Headquarters No 25 Alley 15 Lane 120 SEC 1 NEI HU RD Taipei 114 Taiwan TEL 886 2 26583000 FAX 886 2 26583232 Beijing Branch 3F A Building 113 Zhi Chun Lu HaiDian District Beijing Chi...

Страница 2: ...ommunication System Corporation Other product names mentioned in this manual are used for identification purposes only and may be trademarks or trademarks of their respective companies The information...

Страница 3: ...AINET s VENUS Series VoIP Gateway The summary of this manual is as follows Chapter 1 TAINET Modem Introduction Chapter 2 Installation Chapter 3 Front Panel and Menu Tree Chapter 4 General Information...

Страница 4: ...explained below Warning This symbol and associated text are used when death or injury to the user may result if operating instructions are not followed properly Note This symbol and associated text ar...

Страница 5: ...E WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE FACE HEREOF INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY AND FITNESS FOR...

Страница 6: ...e user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver C...

Страница 7: ...ny may discontinue your service temporarily If possible they will notify you in advance But the advance notice isn t practical you will be notified as soon as possible You will be informed of your rig...

Страница 8: ...U 27 3 5 2 DIAL MENU 29 3 5 3 PROTOCOL MENU 31 3 5 4 3 5 4 TEST MENU 33 3 5 5 3 5 5 CONFIG MODEM MENU 34 3 5 6 CONFIG DTE MENU 38 3 5 7 COMMAND MENU 40 3 5 8 LINE SETUP MENU 41 3 5 9 PROFILE MENU 42 C...

Страница 9: ...TER 5 INSTRUCTION SETS 67 5 1 AT COMMAND SET 67 5 2 DIAL MODIFIERS 74 5 3 RESULT CODES 75 5 4 V 25BIS AUTO CALL UNIT 77 CHAPTER 6 MAINTENANCE 79 6 1 DESCRIPTION 79 6 2 INSTRUMENTS 80 6 3 PERIODIC MAIN...

Страница 10: ...such as Adaptive Precoding Non Linear Encoding Warping Constellation Expansion Multidimensional Trellis coding and Shell Mapping Tx power back off Power Reduction There are 10 factory default profiles...

Страница 11: ...ded overspeed range 2 3 to 2 5 DTE speed Synchronous 33600 31200 28800 26400 24000 21600 19200 1680 14400 12000 9600 7200 4800 2400 1200 bps Asynchronous 15200 76800 57600 38400 33600 32000 31200 2880...

Страница 12: ...V 34 4800 V 34 2400 SM SM SM SM SM SM SM SM SM SM SM SM SM SM Table 1 1c Table 1 1c 4 to 1024 Depends on the combination of data rate symbol rate and constellation expansion chosen V 32bis 14400 T TCM...

Страница 13: ...nsmit Level Lease Line 0 31 dBm 1 dB stepadjustable Dial Line 0 15 dBm 1 dB step adjustable Line requirement 4 2 wires L L or D L Line Impedenance Balance 600 10 Return Loss 20 dB 300 3400 Hz Longitud...

Страница 14: ...r Comply with ITU T V 34 V 32bis V 32 V 22bis V 22 Data And Control Signal Output Voltage 6 12 V ITU T V 28 Input Voltage 3 25 V Output Impedance 330 Input Impedance 3000 7000 Tx Clock Source Internal...

Страница 15: ...S Request To Send DTE 5 106 CTS Clear To Send MODEM 6 107 DSR Data Set Ready MODEM 7 102 SG Signal Ground 8 109 DCD Data Carrier Detect MODEM 9 12 VDC MODEM 10 12 VDC MODEM 15 114 TXC Transmit Clock M...

Страница 16: ...bps modem card TRS32 NMC16 NMS Control unit TRS16 NMC32 NMS Control unit TRS32 TRS16 19inch rack up to 16 modem card TRS32 19inch rack up to 32 modem card PW 130AC 90 265 VAC 130W power unit for rack...

Страница 17: ......

Страница 18: ...apter provides the information needed to install the TAINET Network Series Modem and to ensure that it is working properly You may obtain more information about this subject for rack mount modem shelf...

Страница 19: ...ar telephone cable for connection to RJ45 8 pin jack or one site is RJ 45 and the other site is type option One 7 feet 2 13m modular telephone cable for connection to an RJ11 4 pin jack One 8 pin RJ 4...

Страница 20: ...outside the building at least 8 feet 2 44 meters deep in the earth Several ground rods connected together buried outside the building at least 8 feet 2 44 meters deep in the earth If you are unsure wh...

Страница 21: ...clean area that is free from environmental extremes Allow at least 6 inch 15 24 cm in front of the modem for access to the front panel and at least 4 inch 10 2 cm in back for cable clearance Position...

Страница 22: ...ers three pins plug Middle cylinder is for grounding For power source adapting an automatic switching power supply 90 265VAC is used for the device the fuse for stand alone type is 2A for rack mount t...

Страница 23: ...LINE jack The pin layout of the PHONE connector for RJ11 operation is as follows Pin Color PHONE pin defined 1 No Connect No Connect 2 Black Not used 3 Red Tip 4 Green Ring 5 Yellow Not used 6 No Conn...

Страница 24: ...Wire 4 Wire When it used RJ 45 8 core wire pin 1 2 is a group used for 2 wires leased line application it is TX for 4 wires leased line application Pin 7 8 is another group it is no used in 2 wire le...

Страница 25: ...NE LEASED DIAL BLU BWN BOX RJ45 RJ11 ORG WTE Back up Line TX 2W TX 2W RX RX If use dial back up feature RJ45 modular telephone cable Leased Line BLK GRN BOX RED YEW TX 2W TX 2W RX RX Leased Line or Fi...

Страница 26: ...tion There are 5 keys on the front panel of TAINET s Modem VO DA Key Right Key Left Key ENTER Key and EXIT Key one 2 x 16 LCD displayer and 10 LEDs Through these interfaces users are able to see the s...

Страница 27: ...ower On Off switch a RS 232 connector for connecting to DTE Equipment two RJ11 telephone jack for connecting to dial line and telephone set and one RJ45 telephone jack for connecting to 2 wire or 4 wi...

Страница 28: ...k to the upper level menu LED indicator total 10 indicators as following PWR On for power supply ok DTR On for DTR signal present DSR On for DSR signal present RTS On for RTS signal present CTS On for...

Страница 29: ...and remote access function enabled 3 The character L on the upper left corner stands for local 4 You may use and keys to select menu 5 Press ENTER key to enter the MENU 6 Press EXIT key to quit from t...

Страница 30: ...nu Tree 21 Set up Menu Exp 1 Exp 2 LL TX Level 10dBm R Protocol type Auto MNP V42 1 Use or keys to shift among fields then press ENTER key to confirm and wait for appears on the LCD screen 2 Press EXI...

Страница 31: ...OCOL TEST CONFIG MODEM CONFIG DTE COMMAND LINE SETUP PROFILE LINE SETUP A STATUS MENU REMOTE STATUS MENU Tx Level XX dBm S N Ratio XX dB EQM Valueio XXX F Shift X X Hz F F Shift X X Hz Delay XXXX ms P...

Страница 32: ...Second Dial Type Tone Pulse SPK Control Until DCD on Always on Off when dial Off SPK Volume Low Medium High C PROTOCOL MENU Protocol Type Normal Direct Reliant MNP Auto Reliant LAPM LAPM Normal LAPM M...

Страница 33: ...2b Adaptive V32b 144 V32b 120 V32 96Q V32 96T V32b 72 V32 48 V26b 24 V26b 12 V23 1200 V22b 2400 V22 1200 BELL 212A BELL 103 V21 300 ORG ANS Mode Answer Mode Originate Mode Auto Retrain On Off Tx Clock...

Страница 34: ...NC SYNC Total Bits 8 9 10 11 AL by 141 Off On RDL by 140 Off On G COMMAND MENU Command Mode AT Command V 25bis Command Dumb Mode Auto Baud Off On Framing ASYNC HDLC SDLC BSC Async Form 7 O 1 7 E 1 7 N...

Страница 35: ...DL AT NONE 2 SY DL V25 NONE 3 AS 2L ANS V34 4 AS 2L ORG V34 5 SY 2L ANS V34 6 SY 2L ORG V34 7 SY 4L ANS V34 8 SY 4L ORG V34 9 AS 2L ANS AUTO Power Up User Profile 0 9 Initial Are You Sure Front Lock U...

Страница 36: ...n from the transmitted signal Normally the RX level of 2w leased line and the dial line is between 15 and 33dBm S N RATIO XX dB AT S Signal to noise ratio The bigger the S N ratio the better quality o...

Страница 37: ...Y 10 stands for 19200 bps Asynchronous 10 bits in total bit length DTE 14400 SYN means 14400 bps synchronous RETRAINS XXXX AT S Total retrain count From the total retrain count you will find the total...

Страница 38: ...n operating on V 34 TR MR RS CS CD T AT S Indications of the RS 232 interface lead status 3 5 2 DIAL MENU Item Name Command Description Dial a Number 0 9 ATDSn Dial out a preset telephone number n n 0...

Страница 39: ...Don t care dial tone but show the line connection speed Dial Busy Tone ATX4 Do care dial tone busy tone and show the extended result code default Redial Delay ATS37 n Pause time between auto redial Im...

Страница 40: ...P level with the remote modem The negotiation sequence is V42bis V42 MNP5 MNP4 NORMAL Reliant LAPM AT N4 Link can be established only when V42 function is enabled on the remote modem LAPM Normal AT N5...

Страница 41: ...5x for authentication Timeout for waiting password from dial in modem is about 8 seconds If ANS modem is a standalone model T 336Cx this option will be the same as ALL The program CS V1 5x is an addit...

Страница 42: ...shown LAL ON OFF AT T1 Local analog loop test ON OFF This test is normally used to certify if the modem is in normal operation condition Also this test is usually carried out together with B E R test...

Страница 43: ...4DTCM SM V34 312 AT B41 Set modem speed to V34 31 2k bps 4DTCM SM V34 288 AT B28 Set modem speed to V34 28800 bps 4DTCM SM V34 264 AT B37 Set modem speed to V34 26400 bps 4DTCM SM V34 240 AT B27 Set...

Страница 44: ...eed to V 22bis 2400 bps QAM V22 1200 AT B3 Set modem speed to V 22 1200 bps DPSK V21 300 AT B1 Set modem speed to V 21 300 bps FSK BELL 212A AT B4 Set modem speed to BELL 212A 1200bps DPSK BELL 103 AT...

Страница 45: ...Chapter 3 Front Panel and Menu Tree 36 polling networks or the modem in the most far end of a cascading network...

Страница 46: ...OFF Hook ATH1 Force modem off hooking the line to busy out the in coming calls OH by DTR ATS19 n bit 6 Make the modem to off hook the line when DTR being off for a period of time On enable the OH By...

Страница 47: ...00 bps 7200 bps 9600 bps 12000 bps 14400 bps 16800 bps 19200 bps 21600 bps 24000 bps 26400 bps 28800 bps 31200 bps 33600 bps 38400 bps 57600 bps AT This setting is used to determine DTE speed when aut...

Страница 48: ...the modems will dial the designed preset telephone number or answer according to the current ring count DTR Off Action AT Dn On originate and answer site respectively modem action select for DTR from...

Страница 49: ...3 n bit2 DTE control AL through EIA RS 232 pin18 On Enable Off Disable default RDL by 140 ATS23 n bit1 DTE control RDL through EIA RS 232 pin21 On Enable Off Disable default 3 5 7 COMMAND MENU Item Na...

Страница 50: ...Data Bits even parity 1 stop bit 7 N 2 7 Data Bits none parity 2 stop bits 8 N 1 8 Data Bits none parity 1 stop bit default Idle char ATS19 n bit3 Select the char to be transmitted for the BSC HDLC f...

Страница 51: ...back up mode to select how long it will take to detect if the leased line is recovered or not Forever No dial to leased 1 255 mins default 60 minutes Dial To Dial ATS42 n bit3 When dial line is in us...

Страница 52: ...2L ANS V34 AT F5 W Sync 2W leased answer applicable to the most of the Sync 2 wire leased line 6 SY 2L ORG V34 AT F6 W Sync 2W leased line originate applicable to the most of the Sync 2 wire leased l...

Страница 53: ...tory profile 0 and flush the stored telephone numbers Are you sure confirm the initializing action Press enter key to confirm or any other key to quit Serg edit ATSn m Edit the contain of the selected...

Страница 54: ...apter 4 General Information and Features 4 1 Preview In order to help you to get familiar with your TAINET Network Series Modem this chapter introduces you some common applications For most applicatio...

Страница 55: ...lephone and facsimile machine we have to dial a number For the users who are used to communicate with different counterparts such as bulletin board system BBS public service network and toll free serv...

Страница 56: ...thod Whereas in V 32 V32bis V 34 mode it must provides echo cancellation because originate and answer modems occupy the same frequency band 4W leased line offers two independently unilateral transmiss...

Страница 57: ...the call as originate mode and the other one as answer mode According to the role of the connection the training sequence and working frequency band of either modem is different from each other even...

Страница 58: ...us For most multiplexes the connecting modems should be synchronous However the user should know the type of the data terminal equipment DTE to get proper operation Except V 21 V 23 and Bell 103 which...

Страница 59: ...s Due to the improved throughput the T 336Cx provides DTE speed up to 115200 bps for between data terminal and modem During connecting the modem automatically recognizes the protocol being used by the...

Страница 60: ...the default settings of each factory profiles Table 4 7 1 T 336Cx Factory Profile Default Settings Profile 0 1 2 3 4 5 6 7 8 9 SETTI NG ITEM ASY DL AT AUTO ASY DL AT NONE SYN DL V25 NONE ASY 2L ANS V...

Страница 61: ...ON ON Normal Normal Normal Normal Normal DCD CTRL Normal ON Normal Normal Normal Normal Normal Normal Normal Normal DTR OFF ON ON DISCN T ON ON ON ON ON ON ON DSR CTRL ON ON Normal ON ON ON ON ON ON...

Страница 62: ...ng service loading the T 336Cx offer a remote access function through secondary channel It can read and write the parameter of the remote site modem from local site for well maintenance purpose To use...

Страница 63: ...andshake The T 336Cx complies with ITU T recommendations V 34 V 32bis V 32 V 22bis V 22 V 21 V 8 V 42 and V 42bis operating standard This functions in both calling and answering mode to automatically...

Страница 64: ...the back up line the modem periodically checks the recovery of leased lines to find the opportunity to go back to leased lines in order to save the charge of dial line But when you apply the back up l...

Страница 65: ...enabled in V 34 or V 32bis mode the modem will automatically initial a V 34 or V 32bis rate renegotiation when the line condition changes so that the optimum available data rate is always select with...

Страница 66: ...0 5 to 10 6 is the basic required bit error rate If this condition is not achievable leased line users should report to telephone company however it is better for dial line users to try the dial again...

Страница 67: ...Chapter 4 General Information and Features 58 10 Retrain count Retrains 1 The parameters above can be found in STATUS menu...

Страница 68: ...ress ENTER to clear Error Count Wait a period you may get B E R by dividing error count by total transmitted bits There is one test pattern say 511 you may choose from The selection can be done at BER...

Страница 69: ...llers and synchronous terminals can t issue AT commands to dial The modem offers you a very convenient way to dial by means of operating front panel In addition to ten set phone number it provides you...

Страница 70: ...e front panel keys are still effective all the operations affecting transmission are not allowed You only may observe the setting and monitor the line conditions To release the lock you need to enter...

Страница 71: ...plex mode However some applications may require control of a remote DCD signal by a local RTS signal V 13 V 23 operation allows local RTS control of remote DCD signal without on off carrier switching...

Страница 72: ...ts of Stored Phone Number is char modem will dial current number and continue on with specific stored number as designated by char char is the stored phone number order n any other characters after ch...

Страница 73: ...ion and Features 64 Dynamic Password Call Back Control Code as will not take effect during Login check will be treated as part of Password There s no Call Back function under leased line mode Password...

Страница 74: ...If user is using ATDTxxxx command to dial then it will start the dial polling from Telephone Number 0 If the setting of DTR is DTR off to on 108 1 then the symbol function needs to be set included in...

Страница 75: ......

Страница 76: ...mand ATD dial command ATEn echo on off 0 echo off 1 echo on ATHn hang on off 0 on hook 1 off hook ATIn modem identification command 0 report product code 1 ROM checksum 2 verify ROM checksum 3 Report...

Страница 77: ...value mm in decimal form to the s register nn ATT enable tone dialing ATVn result code form long short 0 short 1 long ATWn extented result code formats 0 CONNECT with DTE speed 1 CONNECT with CARRIER...

Страница 78: ...ions 0 ignore 1 recall command mode 2 disconnect 3 reset modem AT Fn load factory profile n n 0 9 Cmd Function Description AT Gn guard tone options 0 disabled 1 550 Hz 2 1800 Hz AT Kn or AT Qn DTE flo...

Страница 79: ...test 10 TP on AT Vn view active config user profiles tel numbers 0 view current active profile n view user profile n n 1 9 AT Wn save to user profile n n 0 to 9 AT Xn sync tx clock source options 0 i...

Страница 80: ...iable with fallback to normal mode 6 LAPM reliable with fallback to MNP mode 7 MNP reliable with fallback to normal mode AT An async tolerance 0 basic ASI 1 to 2 5 1 extended ASI 2 3 to 2 5 Cmd Functi...

Страница 81: ...V34_33600 43 V17_7200 44 V17_9600 45 V17_12000 46 V17_14400 47 V32b_Adaptive AT Cn data compression on off 0 data compression off 1 data compression on Cmd Function Description AT Dn DTR off to on ac...

Страница 82: ...rd fallback disable 1 auto fall forward fall back enable AT Un autobauding on off 0 autobauding off 1 autobauding on AT Cn calling tone on off 0 calling tone off 1 calling tone on AT V display version...

Страница 83: ...enable tone dial P or p enable pulse dial 0 to 9 A to D a to d dial digit pause flash hook W or w or wait for dial tone return to idle after dial or wait for quiet answer silence intelligent dial pol...

Страница 84: ...T 2 RING 3 NO CARRIER 4 ERROR 5 CONNECT 1200 6 NO DIAL TONE 7 BUSY 8 NO ANSWER TONE 9 None 10 CONNECT 300 11 CONNECT 600 12 None 13 CONNECT 1800 14 CONNECT 2400 15 CONNECT 3600 16 CONNECT 4800 17 CONN...

Страница 85: ...Sets 76 Table 5 3 Result Codes cont Short Long form 24 CONNECT 24000 25 CONNECT 26400 26 CONNECT 28800 27 CONNECT 32000 28 CONNECT 38400 29 CONNECT 57600 30 CONNECT 76800 31 CONNECT 115200 32 CONNECT...

Страница 86: ...specified memory address y y 0 9 RLN Request list of all stored numbers CIC Connect incoming call Auto answer enable DIC Disregard incoming call Auto answer disable 2 V 25bis Responses INC Modem detec...

Страница 87: ......

Страница 88: ...Chapter 6 Maintenance 79 Chapter 6 Maintenance 6 1 Description This chapter gives you the information of maintenance and the required instruments in order to let you recover the troubles quickly...

Страница 89: ...Chapter 6 Maintenance 80 6 2 Instruments The only instrument you need is a multi meter due to the embedded digital and analog test abilities...

Страница 90: ...3 Periodic Maintenance For every three months you should do the following jobs A Turn the power off clean the modem check the plugs make sure all the connectors are connected firmly B Be sure that th...

Страница 91: ...er on again if the trouble still exists please follow the procedures below 1 Power Unit Make sure you get a proper power source If no indicator is lighted probably the problem is the power unit Check...

Страница 92: ...d the TAINET Network Series Modem would contact with your local representative or distributor of Tainet or just directly access our customer service department as soon as possible in order not to caus...

Страница 93: ......

Страница 94: ...7 45 second Wait for Carrier Time S8 2 second Pause for Comma S9 6 100ms Carrier Validation Time S10 15 1 1s Lost Carrier Detect Time 1 sec unit for V34 V32bis V32 0 1 sec unit for V22bis V22 S11 95 m...

Страница 95: ...0 ATQ0 response on 1 ATQ1 response off bit 3 0 ATV0 response code 1 ATV1 response word bit 4 reserved bit 5 0 ATT Tone Dial 1 ATP Pulse Dial No Default Unit Function Description bit 6 reserved bit 7...

Страница 96: ...7 bit data even parity 1 stop bit 01 8 bit data no parity 1 stop bit 10 7 bit data odd parity 1 stop bit 11 7 bit data no parity 2 stop bit bit 6 DTR off cause busy out nothing bit 7 0 V 32bis fast t...

Страница 97: ...t speed message blind dial no busy tone Basic Code 001 reserved 010 reserved 011 reserved 100 ATX1 CONNECT with speed message blind dial no busy tone Dialn Tone 101 ATX2 CONNECT with speed message wai...

Страница 98: ...n S24 0100000 0 binary Bit Mapped Options bit 1 0 DTR off to on control 00 AT D0 normal 108 2 01 AT D1 dial ans according to ring in 108 1 10 reserved 11 reserved bit 3 2 reserved bit 7 4 Login check...

Страница 99: ...y Bit Mapped Options bit 0 1 2 to 35 dBm receive dynamic range 0 12 to 44 dBm receive dynamic range bit 1 reserved bit 3 2 disconnect option 00 send clear down before disconnect 01 immediately disconn...

Страница 100: ...ding off 1 AT U1 autobauding on S30 13 dBm Leased Line Tx Level 0 31 dBm S31 0000000 0 binary Bit Mapped Options bit 0 leased to dial 0 manual 1 auto bit 1 dial to leased 0 manual 1 auto bit 2 V 32 au...

Страница 101: ...t second 0 Disable acll back 1 255 Second S41 0000000 1 binary Bit Mapped Options bit 1 0 connect message display 00 ATW0 CONNECT with DTE speed 0 1 ATW1 CONNECT with CARRIER PROTOCOL and COMPRESSION...

Страница 102: ...binary Bit Mapped Options bit 1 0 DATA Mode 00 DATA mode 01 reserved 10 reserved 11 reserved bit 2 reserved bit 7 6 5 4 3 reserved S51 0000001 1 binary Bit Mapped Options bit 1 0 flow control 00 AT Q...

Страница 103: ...4 reserved 15 V32_4800 16 V32b_7200 TCM 17 V32_9600 TCM 18 V32_9600 QAM 19 V32b_12000T 20 V32b_14400T 26 V34_19200 27 V34_24000 28 V34_28800 29 reserved 30 reserved 31 V34_4800 32 V34_7200 33 V34_9600...

Страница 104: ...pression off 1 AT C1 data compression on bit 7 6 5 reserved S54 Bit Mapped Options bit 3 2 1 0 Call back telephone number 0000 1001 0 9 1010 1111 Off Bit 3 0 Call back telephone number bit 7 6 5 4 Sen...

Страница 105: ...ol Type Clear All Speed DTE Speed Command Mode Line Type Load Rx Level Edit a Number Discon Method LAL ORG ANS Mode Flow Control Auto Baud Leased To Dial Power Up I S N Ratio Ring Times Login Check DL...

Страница 106: ...trol Connect Code B E R Test Make Break DCD Control Dial To Dial Save Phase jitter SPK Volume Compress Force Off Hook Data Format M F Echo OH By DTR Total Bits DTE Pump edit AL by 141 Retrains FB FF C...

Страница 107: ......

Страница 108: ...Appendix C T 336Nx LCD Menu Quick Reference 99 Appendix C T 336Nx LCD Menu Quick Reference...

Страница 109: ...Dial Backup Card Fail 01Select Menu Ararm Config 01 Alarm Config Group Setup 01 Group Setup XXXXXXXXXXXXXXXX RXL Low RXL High SNR Bad Chk Dial Line Dial Backup DTR Off TD RD Inactive N Echo High 01 S...

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