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APPENDIX B

RS232C CONNECTOR

CCITT

Direction Name

Condensed

LED

103

Transmitted Data

(TxD)

TxD

104

OUT

Received Data

(RxD)

RxD

105

Request to send

(RTS)

106

OUT

Clear to send

(CTS)

107

OUT

Data set ready

(DSR)

102

Signal Ground

(GND)

109

OUT

Data carrier detect (CD)

OUT

+ 12V (via 1 k

Ω

)

OUT

- 12V (via 1 k

Ω

)

108

Data terminal ready(DTR)

Speed leds

125

OUT

Ring indicator

(RI)

EXPLANATION OF THE ASCII CODES

NUL

Null, or all zeros

DC1

Device Control 1

Shift In

SOH

Start of Heading

DC2

Device Control 2

Shift Out

STX

Start of Text

DC3

Device Control 3

SYN

Sync.

ETX

End of Text

DC4

Device Control 4

Line Feed

EOT

End of Transmission

CAN

Cancel

Form Feed

ACK

Acknowledge

End of Medium

ENQ

Enquiry

BEL

Bell or Alarm

SUB

Substitute

ESC

Escape

Backspace

File Separator

DLE

Data Link

Horizontal Tab

Group Separator

ESC

Escape

Vertical Tab

Record Separator

Space

Carriage Return

Unit Separator

DEL

Delete

NAK

Negative Acknowledge ETB

End Transmis. Block

TRON SECURE 33.6

Allied Data Technologies BV -

Allways one step ahead

Содержание TRON SECURE 33.6

Страница 1: ...was pointed out to AD Technologies or an agent of AD Technologies that such damage might be sustained This does not of course affect our legal liability for damages based on any intent or gross negli...

Страница 2: ...Allied Data Technologies BV Allways one step ahead 2 TRON SECURE 33 6...

Страница 3: ...MODEM COMMANDS 15 3 1 Command mode and data mode 15 3 2 Structure of a command line 16 3 3 List of AT commands 17 3 4 Explanation of the AT commands 19 4 SECURE FUNCTIONS 35 4 1 General Secure Comman...

Страница 4: ...TRON SECURE 33 6 Allied Data Technologies BV Allways one step ahead 4...

Страница 5: ...chapter 1 is interesting for the first category In this chapter general information is given about data communication and the use of a modem The alphabetical description of the modem com mands and the...

Страница 6: ...Allied Data Technologies BV Allways one step ahead 6 TRON SECURE 33 6...

Страница 7: ...2400 bps connection is 600 baud This is the case since per modulation per baud 4 bits are transferred simultaneously Possible speeds are 75 300 600 1200 2400 4800 7200 9600 12000 14400 16800 21600 240...

Страница 8: ...nals that are suitable for the telephone line The receiver converts demodulates these analog signals again into digital ones and sends these to its serial port We call the device that can carry out th...

Страница 9: ...generate a 0 and a 1 at a far enough distance from each other twice within the 3000 Hz of the telephone line Also at 1200 bps this is already a problem In this case there are three possibilities 1 co...

Страница 10: ...When a connection has been established it is possible to send data between both computers The modem only serves to establish the connection after that they are fully transparent Nevertheless sometimes...

Страница 11: ...ce 2 They indicate the DTR Data Terminal Ready status This signal is active when one of the speed LEDs is on The transmission LEDs show the sent TxD and received RxD data on the serial port The third...

Страница 12: ...ram 4 a telephone number and other data speed parity etc of the data base that you want to contact 5 a serial cable 6 a wall socket 2 3 Connection of the TRON SECURE 33 6 1 Connect the serial ports of...

Страница 13: ...the communication program If this is not possible the modem can simulate that DTR is active This is done with the AT D0 command N B Use this method only if you know for sure that the software does no...

Страница 14: ...ng error NO DIALTONE The modem does not recognize a dialtone Therefore it is not possible to call Check whether the modem is connected with the telephone network BUSY The telephone number that you dia...

Страница 15: ...agraph of this chapter it is explained when the modem is in the command mode After that the structure of a command line is discussed Then an enumeration of the AT commands follows after which each com...

Страница 16: ...rom each other by spaces The spaces are included in the length of a command line Sometimes a command is followed by a parameter number If this number is 0 it may be left out For example ATE correspond...

Страница 17: ...onse Quiet 22 S Read write S registers 23 T Select tone dialling DTMF 23 V Verbal or numerical response 24 W Extended response 24 X Dial and busy tone recognition responses 25 Y Long space disconnect...

Страница 18: ...e operator password 29 AT E Exit operator mode 29 AT O Enter Operator mode 29 AT Q Lock the modem 30 AT A Auto dialback on off 30 AT J Select secondline dialback 30 AT L List callback entries 30 AT M...

Страница 19: ...egister An S register can be selected by using the AT command See also ATS ATA Answer The ATA command puts your modem on line in answer mode If no carrier is detected during the period determined by r...

Страница 20: ...AX mode 1 9 Break length in 100 ms units default 3 This only counts for non error correction connections AT C Select data compression mode This command is used to select between MNP5 and or V42bis Thi...

Страница 21: ...and give a message NO DIALTONE Wait for silence The modem waits for at least 5 seconds of silence on the line before it executes the dial command If the modem does not detect these 5 seconds of silenc...

Страница 22: ...synchronous escape sequence was received The modem returns to the asynchronous command mode without breaking off the connection Q2 A 3 The DTR signal becoming inactive switches the mode off line Auto...

Страница 23: ...quality monitor and auto retrain but hangup immediately when line quality is insufficient AT F Factory settings With this command the modem will load the factory settings These settings are mentioned...

Страница 24: ...of the terminal DTE a remote modem or the AT B command in accordance with the given parameters When a break has been received from the terminal and the modem is working in the data mode its working ca...

Страница 25: ...er always on 3 Loudspeaker off during dialling and connection but on during the answering period AT M Synchronous mode This command determines the working of the CT108 in cooperation with the AT Q com...

Страница 26: ...on automode enabled or the modulation automode disabled to use in originating or answering a connection The options are mod Modulation Possible speeds 0 V 21 300 1 V 22 1200 2 V 22bis 2400 1200 3 V 23...

Страница 27: ...the selected modulation For example AT MS 9 0 2400 14400 selects V 32 9600 or 4800 bps c To emulate issuance of the N0S37 x command sequence to select fixed mode operation specify the max_rate and mi...

Страница 28: ...level adjustments possible at MNP10 connection 0 Standard transmission level at MNP10 connection default 1 Automatic transmission level adjustment at MNP10 connections ATN Automatic line speed detecti...

Страница 29: ...the command AT E1 has been activated a retrain will take place AT Q Synchronous asynchronous mode This command is an extension of the M command and it is used together with the registers S36 and S48 t...

Страница 30: ...been detected and it becomes inactive when the carrier disappears ATT Select tone dialling DTMF This command forces tone DTMF dialling until another dialling method for example ATDP has been selected...

Страница 31: ...NNECT 14400 1 6 2 CONNECT 24000 1 1 6 CONNECT 19200 1 6 3 CONNECT 26400 1 1 7 CONNECT 38400 1 6 4 CONNECT 28800 1 1 8 CONNECT 57600 1 1 9 CONNECT 115200 1 6 6 COMPRESSION CLASS 5 2 2 CONNECT 1200TX 75...

Страница 32: ...essage The dialtone and busy tone recognition can also be switched off This is used when blind dialling is required When the dialtone recognition has to be used while this is switched off a W can be i...

Страница 33: ...manent memory These telephone numbers may have a length of 40 characters at the most AT Zn x n 0 to 3 x telephone number See the ATDS n command Escape code sequence When the modem has established a co...

Страница 34: ...TRON SECURE 33 6 Allied Data Technologies BV Allways one step ahead 34...

Страница 35: ...6 modems make use of 2 key triple DES for enhanced security Another great feature included in the TRON Secure 33 6 is the LOG function Together with the Auto dialback function the LOG function keeps...

Страница 36: ...e AT O Enter Operator mode AT Q Lock the modem Auto Dialback commands Command description AT A Auto dialback on off AT J Select secondline dialback AT L List callback entries AT M Change show Auto dia...

Страница 37: ...ecure commands require that the modem is in Operator mode before they are executed Use AT O to enter Operator mode The default factory password entered by Allied Data Technologies is TRON It is strong...

Страница 38: ...o dialback is off default 1 Auto dialback is on Example AT A1 Switch ON Auto dialback Use AT A0 to switch OFF Auto dialback again AT W must be used to store this setting in memory AT J Select secondli...

Страница 39: ...to 79 n 4 will list entries 80 to 99 Example AT L4 The modem responds by showing entries 80 to 99 80 GIENEK 045633234 1 81 PALLE 08452761656 0 82 PETER 0745732991 1 83 84 DETROIT 0534324445 1 85 86 87...

Страница 40: ...each message is 31 characters Syntax AT M Show messages AT Mn Message Change message n AT MD Restore default messages Examples AT M The modem will list the messages 1 Welcome type your password 2 Dia...

Страница 41: ...entries Examples AT P15 GATES 0545477763 1 Programm entry 15 with the password GATES and the dialback number 0545477763 during dialback DES will be active AT P13 pluto 0715737179 0 This will programm...

Страница 42: ...AT P command the accompaning remote modem should be programmed with the AT D2 command To store this setting to NVM memory use the AT W command Syntax AT Dn n 0 1 2 0 DES is off default 1 DES is on 2 D...

Страница 43: ...ult AT S show the LOG buffer The AT S command lists the entire 48K LOG buffer The output is presented in comma seperated form so it can be imported into a PC programm IF the LOG function is in use the...

Страница 44: ...y 43 Hangup 01 23 13 44 The password belonging to entry 43 has been entered but the dialback did not succeed due to NO DIALTONE BUSY NO ANSWER or NO CARRIER A possible cause maybe that the secondline...

Страница 45: ...n the S register should be used to change the value The following paragraph explains what bit mapped means In paragraph 4 2 a list of the meaning of each S register is given The registers marked with...

Страница 46: ...er S19 Reserved S20 Reserved S21 055 Bit Mapped Register S22 117 Bit Mapped Register S23 183 Bit Mapped Register S24 Reserved S25 005 0 255 Time DTR inactive S26 001 0 255 RTS to CTS active time S27 0...

Страница 47: ...the content of the register exceeds 127 the escape sequence is switched off S3 013 0 127 Carriage return character Gives the ASCII character which is recognized as carriage return The carriage return...

Страница 48: ...er Unit APU Bit Value Default Description Bit 0 6 1 255 10 Switch off delay time APU ____________________________________________________________ Bit 7 0 1 0 0 switch off on DTR 1 switch on CD S14 138...

Страница 49: ...__________________________________________________________ Bit 3 0 1 0 Remote Digital Loopback RDL Status 0 Modem not in RDL 1 RDL operational _________________________________________________________...

Страница 50: ...0 CTS follows RTS AT R0 1 CTS always on AT R1 ____________________________________________________________ Bit 3 4 0 3 1 DTR CT108 behaviour 0 AT D0 selected 1 AT D1 selected 2 AT D2 selected 3 AT D3...

Страница 51: ...ATX2 selected 6 ATX3 selected 7 ATX4 selected ____________________________________________________________ Bit 7 0 1 0 0 Normal mode AT D0 1 Dumb mode AT D1 __________________________________________...

Страница 52: ...TS active time Delay time between RTS and CTS in synchronous mode The time unit is in 1 100 seconds S27 009 Bit Mapped Register Bit Value Default Description Bit 0 1 0 3 0 0 0 AT M0 or AT Q0 default B...

Страница 53: ..._________________ Bit 2 0 1 0 V23 half duplex 0 Off 1 On AT F3 ____________________________________________________ Bit 3 4 0 3 0 Reserved ____________________________________________________ Bit 5 0...

Страница 54: ...rror registration line speed limitation This register determines the action if an attempt to build up a V42 LAMP connection fails S48 1 28 Bit Value Default Description Bit 0 2 0 1 3 4 5 7 7 0 break c...

Страница 55: ...level adjustment MNP10 0 Automatic AT M0 1 Forced adjustment AT M1 ____________________________________________________________ Bit 2 0 1 0 MNP negotiation speed 0 Highest possible speed AT H0 1 Negot...

Страница 56: ...AT L1 ____________________________________________________ Bit 5 7 4 Reserved S46 138 136 138 Data compression 136 Data compression on 138 Data compression off S48 007 0 7 128 V42 negotiation 0 Establ...

Страница 57: ...n ____________________________________________________ Bit 4 0 Reserved ____________________________________________________ Bit 5 0 1 1 0 COMPRESSION report off 1 COMPRESSION report on ______________...

Страница 58: ...to establish a data connection at an arbitrary speed without having to adjust the DTE speed in the software 6 2 Automatic flow control When the modem uses a speed convertor there is a difference in sp...

Страница 59: ...M are protocols which recognize and correct an error To compensate the speed loss caused by this there is a possibility to compress the data to be sent MNP5 and V42bis have a compression technique wit...

Страница 60: ...directory 4 numbers Two user settings Serial CCITT RS232C V24 port 300 115 200 bps Internal power supply with connection to 220V through Euro connector Status indication LEDs Secure Functions Auto dia...

Страница 61: ...0Hz also depending on country requirements Reception level switch on 41 dBm 1dB switchoff 46 dBm 1dB Impedance and symmetry Impedance 600 50 300 3400 Hz 200 0Hz 16 80 mA Earth symmetry 46dB Echo muffl...

Страница 62: ...ll zeros DC1 Device Control 1 SI Shift In SOH Start of Heading DC2 Device Control 2 SO Shift Out STX Start of Text DC3 Device Control 3 SYN Sync ETX End of Text DC4 Device Control 4 LF Line Feed EOT E...

Страница 63: ...1 65 P DLE 16 10 59 3B f 102 66 Q DC1 17 11 60 3C g 103 67 R DC2 18 12 61 3D h 104 68 S DC3 19 13 62 3E i 105 69 T DC4 20 14 63 3F j 106 6A U NAK 21 15 64 40 k 107 6B V SYN 22 16 A 65 41 l 108 6C W ET...

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