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Motorola V3229 - 14.4 Kbps Modem, Operating Instructions Manual

Introducing the Motorola V3229 - 14.4 Kbps Modem! Enhance your connectivity with this reliable device. To get started, simply access the Operating Instructions Manual - a comprehensive and easy-to-follow manual that you can download for free from manualshive.com. Unlock the full potential of your modem effortlessly!

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V.3229 / V.3229L

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5

Asynchronous Operating Commands

Chapter 5

Asynchronous Operating Commands

GENERAL

This chapter describes the AT commands used to
select options and to operate and test the modem.

COMMAND
CATEGORIES

The modem offers eight major categories of com-
mand statements:

¥Response
¥Dial
¥Terminal Interface
¥Test
¥General
¥Configuration
¥Security
¥Protocol

OPERATION
MODES

During asynchronous operation the modem func-
tions in one of three modes:

¥Offline Command Mode
¥Online Command Mode
¥Data Mode

Offline Command
Mode

In offline command mode (generally referred to as
command mode), the modem communicates with the
computer or terminal. Commands can be entered

Summary of Contents for V3229 - 14.4 Kbps Modem

Page 1: ...V 3229 V 3229L Installation and Operation Motorola Doc 6 209 5262 07 014 20 Cabot Boulevard May 1995 Mansfield MA 02048 508 261 4000 ...

Page 2: ...quired standards and recommendations and feature a wide variety of automatic remote and backup capabilities Major characteristics include 14 4 kbps data rate V 42 bis and MNP 5 error control protocols with data compression a V 25 bis autodialer secure operation trellis coding for superior signal to noise perfor mance Data Rates The V 3229 operates at data rates of 7 2 12 0 and 14 4 kbps trellis co...

Page 3: ... set Changes can be made easily AutoConfiguration AutoConfigure allows any of eleven option sets to be quickly enabled or selected as the powerup configu ration There are two ways to enable option sets the LCD and the AT command set Refer to Chapter 3 and 5 respectively Appendix D lists the nine factory option sets For maximum versatility two additional options sets de signed by the user can also ...

Page 4: ... C Introduction V 3229 V 3229L C 3 Reference Introduction button The LED is on in talk mode and off in data mode the pushbutton selects between the two modes Figure 1 2 ...

Page 5: ...L models are available in both standalone or shelf mount configurations The pc printed circuit boards are identical for either so that the standalone board can be field changed for use in the shelf or vice versa Hardware straps on the pc board offer additional customer options The shelf mount unit has edge connectors that insert into the shelf backplane The shelf backplane per forms the same funct...

Page 6: ...ion There are six ways to change or select options LCD Using the front panel LCD and pushbuttons is simple straightforward and requires the least amount of technical background Refer to Chapter 3 Software program A variety of software programs is available or advanced computer users can write their own software programs to interact with the modem This manual does not discussed software programs AT...

Page 7: ...hap ter 4providesinformation for quickly gettingonline Specifications Appendix A contains modem specifications SECURITY Three separate security schemes prevent unautho rized access to local and remote modems and DTEs An AT command password prevents remote config uration of the modem An AT command password prevents remote access to the DTE while operating in dial up mode An autocallback option requ...

Page 8: ... shock and vibration See equipment specifications in Appendix A for details Allow clearance for operation and maintenance and at least 4 inches at the rear for cables and air flow Receipt Inspection After unpacking the equipment check the contents against the packing list Inspect the equipment for any damage that may have occurred in shipment If any damage or equipment shortage is noted refer to t...

Page 9: ...ounded 3 wire plug If common ground is avail able through the third prong of the plug a separate ground wire is not required If the modem has a 110 220V switch select the appropriate voltage If 220 Volt operation is selected install the supplied 1 8 Amp fuse before connecting power to the modem DC Power Input Option Caution To protect the dc to dc converter from damage ensure the positive and nega...

Page 10: ...hone Network PSTN Pri vate line mode is used on 4 wire or 2 wire dedicated leased lines The user must decide which mode to use and then select the telephone jack arrangement accordingly PSTN Connection Modems are registered with the Federal Communi cations Commission FCC for direct connection to the PSTN dial up network The label on the chassis bottom gives the FCC registration number and other in...

Page 11: ... C Introduction C 4 V 3229 V 3229L Reference Installation phones the jack arrangement is RJ11C Cable PN 61020202 0301 connects the DIAL jack on the back of the modem to the RJ11C wall jack Programmable ...

Page 12: ...evel with a resistor selected and installed in the jack by the telephone company This allows the output signal to reach the central office at the optimum level of 12 dBm Jack ar rangements for this mode are the RJ45S Program mable and RJ41S Universal The RJ41S has a switch option that must be selected to Programmed P Cable PN 61020192 0301 not supplied with modem is used to connect the DIAL jack t...

Page 13: ...terface Sync data is accompanied by an internal data rate receive clock pin 17 with negative going transitions on the data transition Async datadoesnot requireareceive clock 4 CA 105 Request to Send A positive level to the modem when data transmission is desired 5 CB 106 Clear to Send A positive level from the modem in response to request to send and when the modem is ready to transmit 6 CC 107 Da...

Page 14: ... C Introduction V 3229 V 3229L C 7 Reference Installation ...

Page 15: ...s 18 141 Local Loopback Loop 3 Control A positive level causes the modem to enter the local analog loopback test mode 20 CD 108 2 Data Terminal Ready This circuit is positive when the DTE is ready to originate or answer a call in dial up operation DTR must al ways be active high in 2 wire private line operation Cycling DTR causes retraining 21 140 Remote Digital Loopback A positive level causes a ...

Page 16: ...ELSET LEASED LINE jack The 42A block is the most common termination for leased line use It requires the use of the 8 pin modular to spade lug cable PN 61020569 0000 Figure 2 4 illustrates the typical hook up of the mo dem for operation over private leased lines with dial backup Note Although the 42A block is the most common some Bell operating companies have discontinued its use for leased lines I...

Page 17: ... C Introduction C 10 V 3229 V 3229L Reference Installation ...

Page 18: ... C Introduction V 3229 V 3229L C 11 Reference Installation ...

Page 19: ... for each set Because of the number of possible applications most modems require some option changes to fit the application Two user programmed option sets are also available These allow the user to configure customized option sets and store them in memory for immediate recall or as the powerup configuration The AutoConfigure feature explained later in this chapter allows immediate use of any stor...

Page 20: ... C 2 V 3229 V 3229L 3 Option Selection The strap diagrams on the following pages indicate the factory settings ...

Page 21: ... present Place the unit on its side on a flat surface To disengage the lock prong insert a medium size flat screwdriver blade in one of the bottom rear latch slots DO NOT PUSH the screwdriver but lightly pry the handle away from the unit as illustrated in Figure 3 1 Assist removal by pushing the cover from the chassis with your fingers on the unit rear edges Repeat this procedure with the remainin...

Page 22: ... V 3229 V 3229L 3 Option Selection To replace the cover align the lock clips rear guide grooves and front lock tabs Press the cover in place until the lock clips engage the lock prongs Board Identification ...

Page 23: ...S Strap illustrations in this section match the board with the TR LED Tip and Ring Polarity Some telephones are tip and ring polarity sensitive If a dial tone is detected after dialing reverse these two straps factory setting Ground Strap Signal ground is normally connected to chassis ground If interference exists isolate signal ground from chassis ground QM Disabled When enabled the Quality Monit...

Page 24: ...by AT or V 25 bis operating commands discussed in Chapter 5 and 7 MAIN MENU Six main menus support modem operations MODEM STATUS DIAL STORED NUMBER DISPLAY STATUS SELECT TEST MODIFY CONFIGURATION CHANGE PHONE NUMBERS Each main menu contains submenus items and op tions Table 3 1 The two right columns in the table show associated AT commands and S registers Menu Sequence The user can step through th...

Page 25: ...ons In most cases while operating in the option menu pressing NO scrolls down the col umns in Table 3 1 and pressing YES advances across the rows Table 3 1 Menu Options Table 1 MAIN MENU LCD MESSAG ES M A I N 1 V 32b 14400 TALK V 32b 14400 TRAINING V 32b 14400 ON LINE V 32b 14400 RINGING V 32b 14400 IN TEST Press NO to ad vanceto MAIN 2 M A I N M E N U SUBMENU SUBMENU ITEM ITEM OP TION AT COM MAND...

Page 26: ...R END ECHO LEVEL FAR END ECHO LEV EL FAR END ECHO DE LAY ESTIMATED DELAY FREQUENCY TRANSLATION DIS PLAY STA TUS M A I N 4 SELECT TEST Offline test only LONG ANALOG LOOP INI TIATE EXIT T1 S16 LAL WITH TP INI TIATE EXIT T8 S16 4 wire only REMOTE ANALOG LOOP INI TIATE EXIT T2 S16 RAL WITH TP INI TIATE EXIT T9 S16 Online test LOCAL DIGITAL LOOP INI TIATE EXIT T3 S16 REMOTE DIGITAL LOOP INI TIATE EXIT ...

Page 27: ...6 9 FORCED ANSWER OR NORMAL ORIGINATE NORM ORIGIN FORCED ANSWER OR OR1 S1 4 V 32 FAST TRAIN ENABLE DISABLE FT1 FT S2 9 AUTO RETRAIN ENABLE DISABLE E1 E S6 0 AUTO RATE RENEGOTIATION DIS low BER med high BER R R1 R2 R3 S5 3 TRANSMIT CLOCK INT EXT RX X X1 X2 S2 7 LINE TYPE LEASE DIAL L1 L2 L S2 7 DIAL LINE TRANSMIT LEVEL 9 to 21 dBm TDn n 9 21 S5 1 JACK TYPE PER RJ11 PROG RJ45 Z Z1 LINE CURRENT DISCO...

Page 28: ...6 N7 N N1 N4 N5 S7 0 PROTOCOL FALLBACK ENABLE DISABLE N3 N5 N6 N7 N N1 N2 N4 S7 0 DATA COMPRES SION DISABLE NORM TX RX C C1 C2 C3 S5 6 Table 3 M A I N M E N U SUBMENU SUBMENU ITEM ITEM OPTION AT COM MAND S RE G M A I N 5 MODIFY CONFIGU RA TION cont CHANGE PROTOCOL OPTIONS cont BUFFER MODE NORMAL DIRECT J J1 DTE SPEED DTE DCE CONSTANT DTE J1 J DTE FLOW CON TROL DISABLE XON XOFF CTS RTS CTS Q Q1 Q2 ...

Page 29: ... 38400 19200 14400 12000 9600 7200 4800 2400 1200 300 S8 0 CHAR SIZE async 7 BIT 8 BIT S6 1 PARITY async NO EVEN ODD S6 1 DIAL METHOD sync ASYNC DTR MANUAL V 25 BISYNC V 25 SDLC M1 M2 M3 M4 M5 S2 7 S3 0 AT COMMAND SET ENABLE DISABLE NT1 NT S2 9 CHARACTER TYPE V 25 only ASCII EBCDIC SDLC DATA FOR MAT NRZ NRZ1 DTR RESPONSE IGNORE RECALL CMD DISCONNECT RESET D D1 D2 D3 S2 1 DSR STATE NORMAL FORCED HI...

Page 30: ...RTS R R1 R2 R9 S2 1 S7 2 RTS CTS DELAY 0 to 150 ms 10 ms incre ments S2 6 DTE COMMANDED FALLBACK ENABLE DISABLE FB1 FB S5 3 OPTIONS RES RET ND AT DISC RESTORED RETAINED RO1 RO S2 9 CHANGE TEST OPTIONS BILATERAL ANA LOG LOOP ENABLE DISABLE AN1 AN S3 4 BILATERAL DIGITAL LOOP ENABLE DISABLE DG1 DG S3 4 DTE LOCAL TEST ENABLE DISABLE LA1 LA S3 4 DTE REMOTE TEST ENABLE DISABLE RD1 RD S3 4 REMOTE COM MAN...

Page 31: ...WAIT FOR DIAL TONE X X1 X3 X2 X4 S2 2 WAIT DELAY Blind Dial 1 2 4 8 16 32 SEC S6 PAUSE DELAY 1 2 4 8 16 32 SEC S8 CALL TIMEOUT 15 30 45 60 75 90 105 120 SEC ANSWER RING X 1 2 4 8 16 manual S0 801 V 32 TIMEOUT LONG SHORT S5 3 AUTOCALLBACK ENABLE DIS S7 2 Table 4 ...

Page 32: ...UBMENU ITEM ITEM OPTION AT COM MAND S RE G M A I N 5 MODIFY CONFIGU RA TION cont CHANGE SPEAKER OPERATION VOLUME CONTROL LOW MEDIUM HIGH L1 L2 L3 S2 2 SPEAKER CON TROL ON UNTIL CARRIER DETECT ALWAYS ON OFF WHILE DIALING ALWAYS OFF M1 M2 M3 M S2 2 LOAD STORE OPTION SET LOAD FACTORY OPTION NO 1 9 Fn n 1 9 LOAD USER OP TION SET 1 2 Z Z1 STORE PRESENT OPTIONS 1 2 W W1 USER OPTION AT RESET 1 2 Y Y1 M A...

Page 33: ...D PHONE NO DISPLAY STATUS NO CHANGE PHONE Note While operating in the option menu pressing NO scrolls down the columns in Table 3 1 and press ing YES advances across the columns Main Menu When any Main Menu is on display pressing YES advances to the first Submenu in that Main Menu group MODIFY CONFIGURATION YES CHANGE MODEM OPTIONS ...

Page 34: ...heMainMenuforthatgroupofsubmenus CHANGE MODEM OPTIONS NO LOAD STORE OPTION SET NO MODIFY CONFIGURATION In a Submenu column pressing YES advances to the Submenu Item column CHANGE MODEM OPTIONS YES DCE RATE Submenu Item To scroll through the Submenu Item column press NO At the end pressing NO returns you to the Submenu header for that item group DCE ...

Page 35: ...YES advances through the options for that Submenu Item The first option that appears is the currently selected option NORMAL ORIG FORCED ANSWER YES FORCE ANSWER NORMAL ORIG This is the last submenu item for modem options Item Option When in the Item Option column respond to the prompt question on the LCD to either keep or change the current option displayed ...

Page 36: ... Submenu Item option setting displayed is the desired option press NO to scroll through Submenu Items If the option displayed is not the desired setting respond to the prompts until the desired option is displayed and then advance to the next Submenu Item In any case responding to the prompt will guide you to the desired option Note Because of menu structure and options avail able not all Main Men...

Page 37: ...V 3229 V 3229L C 19 3 Option Selection ...

Page 38: ...tatus during various op erations Two versions of the V 3229 contain two different LEDs One version has a TR LED in the location where the other version has a QM LED Definitions are as follows Terminal Ready TR lights when the associated DTE is ready to exchange data with the modem This signal is input on EIA 232 pin 20 OR Quality Monitor QM lights when poor signal quality produces a bit error rate...

Page 39: ...2 pin 11 Request to Send RS lights when the DTE is ready to send data to the modem This signal is input on EIA 232 pin 4 Clear to Send CS lights when the modem is ready to accept data from the DTE This signal is output on EIA 232 pin 5 Carrier Detect ...

Page 40: ...A 232 pin 2 TALK DATA Only on the L model the TALK DATA LED lights to indicate that the modem is in talk mode and goes off to indicate that the modem is in data mode POWERUP A powerup procedure is not required Turn the ON OFF power switch on the rear panel to ON Quick Startup Procedure This procedure can help with first time operation of the modem The procedure assumes that phone numbers have been...

Page 41: ...e display shows TRAINING as the modems nego tiate a connection and then ONLINE when the con nection is made Data transfer is controlled by the user and begins when instructed Manual Answering To manually answer the phone for conversation set the autoanswer register S0 to a ring count value high enough to allow answering by the connected phone before the modem autoanswers When the conversation is c...

Page 42: ...e observe the LCD and listen to the speaker AT Command Dialing Enter ATD and the telephone number or memory location number to dial When the enter key is pressed the dial sequence starts Follow the status of the dial sequence by observing the monitor screen and listening to the speaker Software Packages Communication ...

Page 43: ...eed characters may be sent by the DTE to the modem faster than it can send them to the remote modem The modem holds characters in an internal buffer until they can be transmitted When this buffer is full the modem uses flow control to cause the DTE to stop sending characters As the modem continues to transmit data and the buffer empties flow control is again used to cause the DTE to resume sending...

Page 44: ...leased line operation using S31 Refer to S31 in Chapter 6 for options The 4 wire leased line connects to the TELSET LEASED LINE jack on the modem rear panel Di aling is not necessary When connected via leased line the modems will train and begin communicating with each other The DIAL jack can be used to connect a 2 wire PSTN line for dial backup 2 Wire Operation In 2 wire operation the modem is a ...

Page 45: ...must be held high in 2 wire leased line operation This is accomplished by DTE control wiring pin 20 of the digital interface cable high or by selecting the option IGNORES DTR If DTR is terminal controlled loss of synchronization can be corrected by cycling DTR This causes the modem to initiate the 2 wire training sequence ...

Page 46: ...ll Active Profile The active profile holds the current option settings and is used by the modem for all operations and functions Any active profile option can be changed to meet an immediate requirement Stored Profile When an active configuration is established that meets all operating requirements it can be trans ferred to one of the stored profiles Two stored profiles are available for greater v...

Page 47: ... C 10 V 3229 V 3229L Reference Operation ferred to the active profile and then modified to fit a specific application if needed ...

Page 48: ...uthorized entry The modems are shipped from the factory without a security code Refer to Remote Configuration in Chapter 5 The ATD and AT T commands are not accepted in remote configuration Note Remote configuration is supported at all rates except 300 bps Remote Configuration Security The correct code must be received by the remote modem before remote configuration can be estab lished Once establ...

Page 49: ...in be returned to the remote modem by issuing the ATO command Switching DTE service between local and remote modems may be performed as needed To exit remote configuration return DTE service to the local modem The AT T command will exit remote configuration mode ...

Page 50: ... After the password has been validated the modem operates normally Operating without Security The modem is not factory set for security and oper ates like a standard V 32 except for additional AT command which allow access to security With these commands a user can set passwords and turn security on When security is enabled a password must be used to change security options Operating with Security...

Page 51: ...eration security code before the secure modem will allow data transfer If accessing a secure remote modem the local modem prompts the user with PLEASE ENTER YOU PASSWORD To Respond to the password prompt Enter followed by the password ...

Page 52: ...mmands EIA 232 signals to the DTE are not affected by security in command mode Passwords Two passwords of up to ten characters each can be stored in the modem s nonvolatile memory AT commands change the passwords Backspace and escape keys are not supported for password entry The passwords can consist of any printable charac ters except a dollar sign a comma or space Pass words are case sensitive T...

Page 53: ... C 16 V 3229 V 3229L Reference Operation SECURE 14400 xxx ...

Page 54: ...the selected autodial AT AUn telephone number after answering a call holding the line for one second and then disconnect ing When autocallback is enabled the modem will not train on an incoming call Access autocallback via Main Menu 5 on the LCD Refer to Chapter 3 for further information S register 72 enables dis ables autocallback S register 78 determines the delay in seconds before autocallback ...

Page 55: ... S28 has elapsed In automatic mode unnecessary termi nation of the dial line connection is prevented by a leased line lookback test If the leased line is not acceptable the dial connection is resumed with a retrain If the leased line is acceptable the dial connection is dropped and normal leased line mode is resumed If return to lease line is manually invoked in manual dial backup mode the dial li...

Page 56: ... BER 1 in 10 3 The following apply to auto rate renegotiation Autoretrainisdisabledwhenautoraterenegotiation is enabled Auto rate renegotiation is disabled during direct mode Manual rate renegotiation is disabled from the front panel when auto rate renegotiation is enabled Only one increment or decrement in the DTE rate is allowed at a time during auto rate renegotiation When online initiator rate...

Page 57: ...one With the L model enable talk mode by pressing the TALK DATA button Dial the number of the remote site When the answer back tone is heard immediately press the TALK DATA button and hang up the phone The modems go through a connection se quence and establish a data link If not hang up and return to the first step ...

Page 58: ...or enter ATD Sn where n equals the stored telephone number location 1 9 to dial The modem dials the number either pulse or tone whichever is currently in effect and takes the role of the originate modem Refer to the DIAL COMMANDS section in Chapter 5 for additional information ANSWERING A CALL Autoanswer Normally the modem is configured to autoanswer A telephone plugged into the telset jack will a...

Page 59: ...ions cause call termination Abort Disconnect No answer busy signal no modem etc Default 30 sec Select 1 to 30 sec ATH Disconnect command Loss of Carrier Disconnect Select 100 ms to 25 5 sec Receive Long Space Disconnect Disable or enable DTR Disconnect Disable or select 10 ms to 2 55 sec LCD Display When TALK DATA is pressed the LCD dis plays DO YOU WANT ...

Page 60: ...telephone Protocol Link Establishment Failure Reliable mode only Failure to establish reli able link Protocol Inactivity Timeout Default 0 disabled Select disable or 1 to 255 minutes Protocol Retry Limit Exceeded 12 retransmissions of the frame Signal Quality Leased line operation with dial backup enabled extended loss of carrier or 4 unsuc cessful retrains in 3 min utes Modem power is turned off ...

Page 61: ... C 24 V 3229 V 3229L Reference Operation ...

Page 62: ...V 3229 V 3229L C 25 Reference Operation V 32 Cleardown ...

Page 63: ...f call termination spec ified in the CCITT recommendation Cleardown incorporates a training sequence which ends with a command to disconnect If long space disconnect is disabled the cleardown sequence is activated by the ATH command or by any method of disconnect request ...

Page 64: ...V 3229 V 3229L C 27 Reference Operation ...

Page 65: ...offers eight major categories of com mand statements Response Dial Terminal Interface Test General Configuration Security Protocol OPERATION MODES During asynchronous operation the modem func tions in one of three modes Offline Command Mode Online Command Mode Data Mode Offline Command Mode In offline command mode generally referred to as command mode the modem communicates with the computer or te...

Page 66: ...ts with a compatible modem In data mode the modem sends and receives data but will not accept or execute command instructions SENDING COMMANDS TO THE MODEM When the computer modem and monitor are on an instruction can be sent to the modem telling it what function or activity to perform The instruction called a command statement command string or just command is typed using the computer keyboard Th...

Page 67: ...ntion Dial 555 1212 Another example is Enter ATZ This means Attention execute the Z command After entering a command line the modem returns a response message If the command is accepted OK is returned If the command is not accepted ER ROR is returned To clear command statements from the buffer per form one of the following Turn the modem off Enter AT Use the DTR reset feature Autobaud The attentio...

Page 68: ...n code AT may be upper or lower case but not a combination like aT Return must be pressed to execute Enter a com mand The command buffer can hold 40 characters Use the backspace or delete key to erase the last character Even though the initial AT code must be all upper or lower case characters that follow can be any mix of upper and lower case Monitor Display ...

Page 69: ...using 40 characters or less The AT characters and punctuation used in telephone numbers do not take up space in the buffer Also blank characters used as spaces to help increase readability are not counted For example the modem reads the commands ATD 212 555 1212 ATD2125551212 ATD 212 555 1212 as having 11 characters each Commands can be typed in any of these forms Backspace Key Use the backspace k...

Page 70: ...229L 5 Asynchronous Operating Commands This command tells the modem to repeat the last command stored in its buffer It automatically reex ecutes the command without retyping The return key does not need to be pressed ...

Page 71: ...peaker always on In all cases the zero 0 may be omitted so the commands M and M0 are identical For clarity this manual uses the nonzero form of commands The modem treats both the same but zeros count against the buffer total Group Commands A group of commands can be typed in a single command statement Pressing the return key sends the entire command string to the modem which executes each command ...

Page 72: ...ting Commands The modem executes the AT command followed by the Q V L D and T commands ATQ0V0L3DT5551212 can be read as ATQVL3DT5551212 Eliminating zeros reduces the number of characters allowing more room in the buffer Response Commands Cont ...

Page 73: ... or action executed Response messages can appear as words or numbers Digit Word Selection V V tells the modem which type of response message to show on the monitor Some software requires digit response messages but words are easier to remember default Response Displays Q The Q command enables or disables response mes sages The modem still responds to commands when the response display is inhibited...

Page 74: ... C 10 V 3229 V 3229L 5 Asynchronous Operating Commands default Q Response display on Q1 Response display off Q2 Response display on in originate mode only Table 2 Response Commands Cont ...

Page 75: ...ction is made the modem returns a CONNECT code 1 message to the screen regardless of the speed of connection With a basic response the modem will not detect a busy or no dial tone condition Table 3 X Dial toneandbusysignal detectionnot selected CONNECT code 1 re sponse messages displayed for all speeds X1 Dial tone and busy signal detection not selected appropriate CONNECT response messages or cod...

Page 76: ...the number If a busy signal is detected the modem sends a BUSY message and hangs up If the call is completed the appropriate CONNECT message similar to X1 will be displayed The mo dem will not detect a dial tone signal X4 followed by a dial command causes the modem to go off hook and wait for a dial tone before dialing If a dial tone is not detected within 5 seconds the modem returns a NO DIALTONE...

Page 77: ...e data rate of the serial port This option selects either of two commonly used number code sets default is RC Note Asterisks in AT commands are part of the command and do not indicate footnotes Response Number Codes Messages Table 4 Command Code Set Num ber Operation RC Stan dard 15 4800 bps 18 9600 bps RC1 Alter nate 11 4800 bps 12 9600 bps Dial Commands Cont ...

Page 78: ...ed 3 NO CARRIER Valid carrier is not detected after call attempt within period specified by register S7 or car rier lost for value of S10 or more 4 ERROR Command not recognized or too long 5 CONNECT 1200 Connection made at 1200 bps 6 NO DIAL TONE No dial tone detected for 5 seconds X2 or X4 command in effect 7 BUSY Dialed number busy X3 or X4 command in effect 9 CONNECT 7200 DTE rate 7200 bps 10 C...

Page 79: ...ion 28 CONNECT 7200 REL MNP 7200 bps connection 29 CONNECT 12000 REL MNP 12000 bps connection 30 CONNECT 14400 REL MNP 14400 bps connection 31 CONNECT 57600 REL MNP 57600 bps connection 36 CONNECT 1200 LAPM LAPM 1200 bps connection 37 CONNECT 2400 LAPM LAPM 2400 bps connection 38 CONNECT 4800 LAPM LAPM 4800 bps connection 39 CONNECT 9600 LAPM LAPM 9600 bps connection 40 CONNECT 14400 LAPM LAPM 144...

Page 80: ... C 16 V 3229 V 3229L 5 Asynchronous Operating Commands Note Connect rates indicate DTE speed 44 CONNECT 7200 LAPM LAPM 7200 bps connection 45 CONNECT 57600 LAPM LAPM 57600 bps connection Table 6 ...

Page 81: ...al a number for example 555 1212 Enter AT D 555 1212 The modem dials the number either pulse or tone whichever is currently in effect and takes the role of the originate modem Use spaces hyphens parentheses or other punctua tion except dial modifiers to make the command line easier to read and enter For example these are all treated the same AT D 1 800 555 1212 AT D 1 800 555 1212 ATD18005551212 T...

Page 82: ...000 Here the modem pulse dialsa 9 pauses for the telephone system to switch to an outside line then dials the phone number Comma pauses may be inserted consecu tively if de sired W wait up to 30 seconds time specified by S7 for a second dial tone Hook Flash enter an exclamation mark AT D T 9W 323 8000 7 377 usually for transferring a call or similar use In this ex ample the modem tone dials a 9 wa...

Page 83: ... Line Telephone S enter ATDSn where n represents a stored telephone number location be tween 1 and 9 AT D S9 AUn which is used for any autodial applica tion Voice Calls dial the number withthetelephone To use the dial command for the call AT D num ber place the modems at both ends in DATA mode by pressing the TALK DATA button ANSWER ING A CALL answer by pressing the TALK DATA button AT Com mand An...

Page 84: ...me terminals and devices to communicate with the modem select C DIMENSION IN COL WIDTHS 1 0000 2 710 8 WIDTH 5 4992 BE LOW 0005 HGUTTER 0555 VGUT TER 0555 BOX Z_DOUBLE HGRID Z_S INGLE VGRID Z_SINGLE KEEP OFF ALIGN RT L2 R1C0 R 1C2 TABLE HEADING Command Operation C DCD always on C1 DCD is on when the modem recogniz es remote modem carrier or if en abled when protocol negotiation is complete C2 DCD ...

Page 85: ...21 5 Asynchronous Operating Commands default Table 8 Command Operation S DSR always on S1 DSR on when off hook in data mode S2 DSR off for 5 seconds after disconnect then returns to on S3 DSR follows off hook OH signal ...

Page 86: ...termines how the ring indicate signal operates on pin 22 of the EIA 232 DTE connector Table 9 Command Operation D The modem ignores DTR D1 The modem goes to command mode from data mode when DTR goes from on to off D2 Disconnects when DTR goes from on to off disables autoanswer while DTR is off D3 Disconnects recalls command mode and resets the modem to a stored configuration when DTR goes from on ...

Page 87: ...high when carrier is detected AT R9 forces CTS to follow the state of RTS without delay default Note RTS CTS delay is not valid in buffered mode or with error control enabled Table 10 Command Operation R Causes ring indicate signal on pin 22 to turn on high during each ring and remain on during the call R1 Causes ring indicate signal on pin 22 to turn on high during each ring and turn off low when...

Page 88: ... 24 V 3229 V 3229L 5 Asynchronous Operating Commands Note With AT R2 selected XON XOFF is the only valid method of flow control and C and C1 are the only valid carrier detect options General Commands Cont ...

Page 89: ...lback If the modem is not using DTE fallback set this option to ignore pin 23 To cause the modem to act on high low levels of pin 23 enable this option Negative level forces a higher rate for primary data rate posi tive forces a lower rate providing a fallback rate default Table 12 Command Operation FB Ignore pin 23 FB1 Transition on pin 23 changes speed General Commands Cont ...

Page 90: ...rn to command mode before terminating the test with the AT T command Refer to Appendix C for test procedures Table 13 Command Operation T Terminate any test T1 Initiate local analog loopback test T2 Initiate remote analog loopback test T3 Initiate local digital loopback test T4 Grant remote requested digital loop back T5 Deny remote requested digital loop back T6 Initiate remote digital loopback t...

Page 91: ...le DTE controlled remote digital loopback enter AT RD1 Enabled the modem goes into remote digital loopback when it detects an off to on transition of pin 21 while in the online data mode Test ends when it detects an on to off transition of pin 21 and the modem returns to online data mode To disable this function enter AT RD Table 14 Command Operation AN AN1 Bilateral analog loop disabled Bilateral...

Page 92: ...ts an off to on transi tion of pin 18 Test ends when it detects an on to off transition of pin 18 To disable enter AT LA default GENERAL COMMANDS These commands control various standard options that in most cases apply to any mode of operation Changing from Data Mode to Command Mode Table 15 Command Operation RD Ignore pin 21 RD1 RDL enabled pin 21 Table 16 Command Operation LA Ignore pin 18 LA1 L...

Page 93: ...he telephone line connection The mo dem responds with OK when it detects the escape code Return to data mode by entering ATO Note The AT command set must be enabled Local Character Echo E Type AT without a carriage return If the screen shows AT character echo is correct Proceed with other commands as desired If the screen shows AATT enter the ATE com mand to correct the double characters or disabl...

Page 94: ... The modem must be in online command mode to use this command EPROM Check ATI I PC software packages may issue the ATI command to verify the modem will support all commands needed by the software package The modem returns ASCII characters representing the model and revi sion level To request the CRC to be calculated on the EPROM enter ATI1 The modem returns four ASCII characters representing the C...

Page 95: ...29L C 31 5 Asynchronous Operating Commands L ATL commands offer three volume levels default Table 19 Command Operation L L1 Speaker volume low L2 Speaker volume medium L3 Speaker volume high General Commands Cont ...

Page 96: ...ce Disconnect Y One method of disconnecting two modems is called long space disconnect When any disconnect condi tion is detected by the local modem it will send 4 seconds of data space condition to the remote modem before disconnecting This signals the remote mo dem to disconnect The local modem will disconnect if it receives 1 6 or more seconds of data space Table 20 Command Operation M Disables...

Page 97: ...n nects Note This option must be disabled if SDLC NRZI data is used default Guard Tones G Guard tones are not used in the United States If required where operating the unit select the appro priate guard tone default Dial Leased Line L Table 21 Y Long space disconnect off Y1 Long space disconnect on Table 22 Command Operation G No guard tone G1 550 Hz guard tone G2 1800 Hz guard tone General Comman...

Page 98: ...ds select synchronous or asyn chronous operation and synchronous dial method AT M selects asynchronous data and dial mode AT M1 selects synchronous data mode 1 Calls are placed asynchronously Operation switches to syn chronous after connecting with the remote modem Table 23 Command Operation L Dial switched L1 Leased private 2 wire L2 Leased private 4 wire ...

Page 99: ... with V 25 bis autodialer set for Bisync protocol AT M5 selects synchronous data mode 5 with V 25 bis autodialer set for SDLC protocol Use register S30 to select NRZ NRZI for protocol data format if using SDLC default Caution Synchronous terminal equipment must be available to communicate with the modem if the V 25 bis dialer is enabled Table 24 Command Operation M Asynchronous mode M1 Sync mode 1...

Page 100: ...dial pulse is on for 33 and off for 67 of one cycle default Synchronous Transmit Clock Source X The AT X commands select internal external or receive clock as the transmit clock source default DCE Speed B Table 25 Command Operation P 39 61 US and Canada P1 33 67 Table 26 Command Operation X Internal clock X1 External clock X2 Receive clock Configuration Commands Cont ...

Page 101: ... DCE speed to follow the DTE speed When originating a call the two modems will not connect at a speed faster than the lower DCE speed setting of the two modems To allow the modem to transmit data at a speed different from DTE speed enter AT Bn n 1 to 9 Configuration Commands Cont ...

Page 102: ...iscon nect the modem tries for n seconds to empty its buffers When the buffers are empty or if n 0 the modem disconnects immediately default Table 27 Command Operation B Use DTE speed B1 300 bps B2 1200 bps B3 2400 bps B4 4800 bps B5 9600 bps B6 9600 trellis B7 7200 trellis B8 12000 trellis B9 14400 trellis Table 28 Command Operation D Disconnect buffer delay disabled Dn Disconnect buffer delay va...

Page 103: ... enabled the modem automatically decreases DCE rate if signal quality deteriorates beyond the allowable bit error rate If signal quality improves the modem increases DCE speed default Table 29 Command Operation E Disable auto retrain E1 Enable auto retrain Table 30 Command Operation R Disable auto rate renegotiation R1 Enable auto rate renegotiation using low BER 1 in 105 R2 Enable auto rate reneg...

Page 104: ...p operation the modem transmitter output can be set in two different modes of operation In permissive RJ11 jack transmit output level is set to 10 dBm In programmable RJ45 jack operation the transmit level is set by an external program resistor default Note Asterisks in AT commands are part of the command and do not indicate footnotes Dial Backup DB Table 31 Command Operation Z RJ11 permissive Z1 ...

Page 105: ... or 2 wire leased lines default Return to Leased Line from Dial Backup LB During dial backup operation LB causes the mo dem to return to leased line operation If dial backup operation is set for manual the dial line connection is dropped immediately when returning to leased line from dial backup Table 32 Command Operation DB Manual dial backup operation DB1 Automatic dial backup operation Table 33...

Page 106: ...eased line operation only LD dials the autodial number if the modem is in originate mode with manual dial backup selected Disable AT Command Set NT AT NT disables the AT command set AT NT1 allows a modem to enable AT command operation of another modem via remote configura tion Table 34 Command Operation LC Line current disconnect off LC1 Line current disconnect short 8 ms LC2 Line current disconne...

Page 107: ...efault To enable AT commands locally scroll through the LCD menu to the CHANGE DTE OPTIONS sub menu Scroll to AT COMMAND SET ENABLE DISABLE Table 35 Command Operation NT Disable AT command set NT1 Enable AT command set at remote site Protocol Commands Cont ...

Page 108: ...m to answer or originate mode This option is used during 2 and 4 wire leased line operation with error correction and or dial backup default Leased Line Transmit Level TLn default is 0 dBm Dial Line Transmit Level TDn Table 36 Command Operation OR Force originate OR1 Force answer Table 37 TLn Sets leased line TX level to n where n is a number 0 to 21 corresponding to a TX level of 0 to 21 dBm Prot...

Page 109: ...229 V 3229L C 45 5 Asynchronous Operating Commands default is 10 dBm Table 38 TDn Sets dial line TX level to n where n is a number 9 to 21 corresponding to a TX level of 9 to 21 dBm Protocol Commands Cont ...

Page 110: ...up profile Remote configuration is discussed at the end of this section Storing a Configuration W The W commands store the current configuration options in one of two nonvolatile memory locations Figure 5 1 The stored configurations are retained in memory even when power is off or until W is issued with a new configuration Table 39 Command Operation W Store options to user option set 1 W1 Store op...

Page 111: ...etermines which user option set is loaded during powerup and reset Load Factory Options F The AT Fn command loads one the existing fac tory option sets Refer to Appendix D for a complete list of the options in each set Table 40 Command Operation Y Powerup with user option set 1 Y1 Powerup with user option set 2 Y Displays currently selected powerup option set Table 41 Command Operation F F1 Load f...

Page 112: ...ctory option 3 sync dial up without V 42 bis F4 Load factory option 4 sync 4 wire leased line without V 42 bis F5 Load factory option 5 async 4 wire leased line with V 42 bis F6 Load factory option 6 async 4 wire leased line without V 42 bis F7 Load factory option 7 sync 2 wire leased line normal originate F8 Load factory option 8 sync 2 wire leased line forced answer F9 Load factory option 9 sync...

Page 113: ...umber longer than 31 characters can overflow into the next location Any spaces remaining in the overflowed location cannot be used for another number The stored phone num ber is retained until replaced by another number Modem power can be turned off without affecting stored information Two commands can store phone numbers AT Z inserts a phone number in location one only AT CN inserts a phone numbe...

Page 114: ... to dial the indicated number is stored at location 1 for later dialing Note Neither the AT prefix nor the D command should follow the Z AT Zn Stores telephone number n including dial modifiers at location 1 up to 31 digits AT CNx n Stores telephone number n including dial modifiers at location x x 1 to 9 AT CNx Clears telephone number location x Protocol Commands Cont ...

Page 115: ... returns to the previously stored configu ration on disconnect When options are restored at disconnect the follow ing commands return OK but are not executed AT CN Store telephone number AT Z Store telephone number AT F Recall factory configuration AT W Store current configuration default REMOTE CONFIGURATION Remote Security Code P D A security code prevents unauthorized access to re Table 44 Comm...

Page 116: ...ore the remote modem responds default The P D command disables remote configuration To enable remote configuration insert another secu rity code Entering Remote Configuration T This mode of operation allows the modem user to view or modify the option set of a compatible remote modem Entering AT T security code of remote initiates remote configuration The modem is shipped from the factory with secu...

Page 117: ...ng Commands code blank This allows initiate remote config uration by using blank as the security code Table 46 Command Operation T This command followed by the correct security code establishes remote configuration T Exits remote configuration ...

Page 118: ...rd or only one is stored in memory It can not be used to change a password Changing a Password C x y AT C x y changes either password where x rep resents the old password and y is the new one Deleting a Password C x AT C x deletes password x from memory Se curity is automatically disabled if the last password is deleted Security Reset DR This command resets security to its initial state off with n...

Page 119: ...s Operating Commands D x AT D x disables security where x is either pass word Security Status D E AT D or AT E displays the current status of security on or off Enabling Security E x AT E x enables security where x is either pass word ...

Page 120: ...eds The AT J1 command forces serial port DTE speed to follow data link speed in any mode If the modem is in direct mode J1 and a DCE link is established at a speed other than that of the original DTE autobaud speed the modem will issue the Table 47 Operating Mode Error Correction Data Compres sion Flow Control Data Constant Speed Interface Normal Disabled Not applica ble Allowed Buffered On or off...

Page 121: ... modem default Operating Mode N Sets the error control mode that the modem uses while in data mode An AT Nn command issued during online command mode will not affect the current connection but will be acted on for subse quent connections LAPM or MNP protocol opera tion is referred to as reliable mode and the auto Table 48 Command Operation J Disable slaved DTE DCE constant speed DTE on J1 Enable s...

Page 122: ...racter from the calling modem and passes the character to the serial port Enter AT An to set the auto reliable fallback char acter n 1 127 decimal representing an ASCII character Table 50 Command Operation N Normal mode no error control data buffered N1 Direct mode no error control data not buffered N2 MNP only try MNP disconnect if not successful N3 MNP or normal try MNP fallback to normal async ...

Page 123: ... be set for auto reliable mode AT N3 N5 N7 Protocol Result Codes V Enable or disable protocol result codes Table 5 1 lists these default Table 51 Command Operation A Sets ASCII character to be recognized as the auto reliable fallback character Table 52 Command Operation V Disable protocol result codes V1 Enable protocol result codes ...

Page 124: ...he DTE to resume sending data AT Q Q3 affect both DTE and DCE flow control AT Q4 Q7 affect only flow control by the DCE AT Q disables flow control When AT Q1 is set the modem generates and ac cepts XON XOFF characters to start and stop the data flow These characters have the same parity as the DTE setup taken from the last AT command AT Q2 allows use of CTS off to stop the data from the DTE and CT...

Page 125: ... the remote modem as data characters In normal mode the modem will look at the G command and act accordingly Caution With X1 in effect local flow control characters will be sent to the remote system These characters may turn on the data flow from the remote system before the modem is ready to receive more data possibly resulting in data loss Table 53 Q Disable DTE flow control Q1 Enable DTE XON XO...

Page 126: ... C 62 V 3229 V 3229L 5 Asynchronous Operating Commands ...

Page 127: ... to start stop data transmission from the remote modem This com mand is ignored during a reliable connection default Break Control Kn Use AT Kn n 0 5 to indicate the action taken by the modem when a break is encountered Table 54 Command Operation X Process but do not pass XON XOFF characters to remote DCE X1 Process and pass XON XOFF charac ters to remote DCE Table 55 Command Operation G Disable d...

Page 128: ... C 64 V 3229 V 3229L 5 Asynchronous Operating Commands default Table 56 Command Operation K Break option 0 K1 Break option 1 K2 Break option 2 K3 Break option 3 K4 Break option 4 K5 Break option 5 ...

Page 129: ...the serial port while the modem is in connect state during a direct connection Table 57 Command Operation K K2 K4 Enter command mode but do not send break to the remote modem K1 Empty the data buffers and send break to the remote modem K3 Immediately send break to the remote modem K5 Send break to the remote modem in sequence with any data received from the serial port Table 58 K K2 K4 Immediately...

Page 130: ...ansmitting or receiving data before hanging up When the value is set to 0 the timer is disabled The timer is active only Table 59 Command Operation K K1 Empty the data buffers and send break to the serial port K2 K3 Immediately send break to the serial port K4 K5 Send a break to the serial port in se quence with any data received from remote modem Table 60 Command Operation K K1 Empty the data buf...

Page 131: ...lock size will maximize throughput when marginal line conditions are caus ing errors The modem sends a block up to the size specified by the AT A command default Transmit Break Set Break Length B Table 61 Command Operation T Disable inactivity timer Tn Set inactivity to n n 1 90 minutes Table 62 Command Operation A Maximum transmit block size 64 characters A1 Maximum transmit block size 128 charac...

Page 132: ...e n 1 255 in 20 ms increments default V 42b Data Compression C Table 63 Command Operation B Sends a break signal to the remote modem Does not modify S79 Bn Sets S79 to length of break desired n 1 255 in 20 ms increments Z_TBL_E ND C DIMENSION IN COL WIDTHS 1 0000 2 710 8 WIDTH 5 4992 BE LOW 0005 HGUTTER 0555 VGUT TER 0555 BOX Z_DOUBLE HGRID Z_S INGLE VGRID Z_SINGLE KEEP OFF ALIGN RT L2 R1C0 R 1C2 ...

Page 133: ...quests 18 seconds and if the remote modem does not respond the modem returns to nor mal mode Accept an MNP Link U Forces the modem to return online and accept an MNP link independent whether the modem originat ed or answered the call For this command to suc ceed the remote modem must have received the AT O command This command causes the modem to wait indefinitely for the remote modem to issue the...

Page 134: ...n for the call The remote modem must switch to MNP mode for this command to succeed The modem will return to a normal connection if an MNP link is not established in 18 seconds SwitchfromMNPto Normal Z This command causes the modem to return online and switch from an MNP connection to a normal connection Note If J1 and C are set the Z command forces the modem to the direct mode Note The Z and Y co...

Page 135: ...V 3229 V 3229L C 71 5 Asynchronous Operating Commands ...

Page 136: ... C 72 V 3229 V 3229L 5 Asynchronous Operating Commands ...

Page 137: ...perform a certain function The S register values comprise the config uration profile Caution The purpose of this tutorial is to show the versatility of option selection and register function It is strongly recommended that the preferred meth ods of option selection be used This tutorial uses S22 as the example register Certain modems may use S22 differently or may not have an S22 Generally the use...

Page 138: ...ains a listing of S regis ters and indicates if they are read only or read and write Figure 6 1 illustrates how the different inputs to an S register S22 in this case are used to select a particular option Bits 3 and 2 of S22 control speaker options Some communication software packages may use the AT command set For example purposes bit values are arbitrary ...

Page 139: ... while the register value is the cumulative decimal or hexadecimal total The decimal value counts all eight bits as a single group Hexadecimal values split the bits into two groups of four each Writing to an S register changes the total value Figure 6 2 illus trates the difference between decimal calculation and hexadecimal calculation Note Refer to Appendix F for decimal hexadecimal values ...

Page 140: ...ds requires the operator to precalculate the revised decimal or hexadecimal total Because of the chance of miscal culating the bit sum causing unplanned option changes writing to an S register is discouraged For operators who prefer this method of option selection a much simplified command that eliminates the dec imal calculation is explained in the Individual Bit Command section Enter ATSn v to c...

Page 141: ...of changing S register options However some options stored in registers do not have an associated AT command For these options the individual bit AT command can be used to change the setting of the bit controlling the option To Change a single bit value within a register Enter ATSn v where n register number bit position 0 through 7 v bit value 1 or 0 Example S register 27 bit 2 selects between dia...

Page 142: ... Set the register to 0 to turn autoanswer off Set the register to any value other than zero 1 255 to turn autoanswer on The number selected is the ring count the modem answers on For example if S0 equals 4 the modem answers the call on the fourth ring The default value is 1 Ring Count S1 0 255 This register contains the ring count for a current incoming call and should not be changed The user can ...

Page 143: ...e the character set S3 to the desired ASCII value 0 127 Line Feed Character S4 0 127 The standard character is the line feed ASCII value of 10 This character is sent by the modem after each status message To change it set S4 as desired 0 127 Backspace Character S5 0 127 The standard characteris the backspace ASCII value of 8 To change it set S5 to the desired value 0 127 Pause Before Dialing S6 0 ...

Page 144: ...nds the NO CAR RIER message or code Values between 1 and 255 may be used The default value is 30 seconds Pause Interval for Comma S8 0 255 When a dial command contains a comma the modem pauses the number of seconds in S8 Change S8 to change the basic pause interval 0 255 or use several commas in a row for greater delay during dialing The default value is 2 seconds Carrier Detect Time S9 0 255 S9 c...

Page 145: ...nce to return to command mode from data mode requires two pauses one be fore and one after the escape characters The pauses prevent the modem from responding to a character sequence which might contain the escape sequence as part of its normal data transmission S12 contains the pause interval in 0 02 second incre ments The factory setting is 50 equivalent to 1 second 50 x 0 02 sec When S12 is 0 th...

Page 146: ...instead of changing S12 Values between 0 and 255 may be used for S12 Note When S registers have parallel AT commands the commands are listed in the register tables as a cross reference If no command exists for the option the column is left blank S13 Not used ...

Page 147: ... Table 1 0 Reserved 1 0 1 E E1 Local character echo off Local character echo on 2 0 1 Q Q1 Response messages on Response messages off 3 0 1 V V1 Response messages as digit codes Response messages as words 4 0 1 Q2 Ignore Response messages in originate mode only 5 0 1 T P Tone dial Pulse dial 6 Reserved 7 0 1 OR1 OR Forced answer Normal originate ...

Page 148: ...est to run indefinitely The default Table 2 Bit Val ue Command Description 0 0 1 Analog loopback inactive Analog loopback in progress 1 Reserved 2 0 1 Digital loopback inactive Digital loopback in progress 3 0 1 Slaved digital loopback inactive Slaved digital loopback in progress 4 0 1 Remote digital loopback inactive Remote digital loopback in progress 5 0 1 Self test remote digital loopback inac...

Page 149: ...V 3229 V 3229L C 13 6 Status Registers value is 0 S19 20 ...

Page 150: ...nt DCD on except for 5 seconds after dis connect DCD follows RTS on remote modem not valid in reliable or buffered mode 2 0 1 R R1 CTS follows RTS by S26 delay CTS always on 4 3 00 01 10 11 D D1 D2 D3 DTR ignored DTR on to off transition recalls asyn chronous command state DTR on to off transition causes disconnect DTE on to off transition resets modem to current stored configuration and en ters c...

Page 151: ...ing 6 4 000 001 010 011 100 X X1 X2 X3 X4 CONNECT message only blind dials no busy detect CONNECT appropriate code for rate blind dials no busy detect CONNECT appropriate code for rate waits for dial tone no busy detect CONNECT appropriate code for rate blind dials reports BUSY CONNECT appropriate code for rate waits for dial tone reports BUSY 7 0 1 P P1 Make break ratio US 39 61 Make break ratio ...

Page 152: ... C 16 V 3229 V 3229L 6 Status Registers default S24 7 6 00 01 10 G G1 G2 No guard tones 550 Hz guard tone 1800 Hz guard tone Table 5 ...

Page 153: ... S26 The S26 register specifies the amount of time 0 255 in 0 01 second 10 ms increments between the RTS signal and the CTS signal The default value is 0 Bit Mapped S27 default Table 6 1 0 00 01 10 11 M M1 M2 M3 Async Sync data async dial Sync data dial through DTR Sync data manual dial 2 0 1 L L1 and L2 Dial up line Leased line 3 Reserved 5 4 00 01 10 X X1 X2 Internal clock External clock Receive...

Page 154: ...rements that the modem will remain in dial backup mode before retrying leased line mode This is only used if automatic dial backup is enabled A zero will disable automatic lookback to leased line The default value is 15 minutes default Table 7 Bit Val ue Command Description 7 0 0 255 Time in 1 minute increments 0 dis abled ...

Page 155: ...1 Options retained at disconnect Options restored at disconnect 2 0 1 FT FT1 Disable V 32 fast train Enable V 32 fast train 6 3 Reserved 7 0 1 FB FB1 DTE fallback disabled DTE fallback enabled Table 9 0 Reserved 1 0 1 V 25 ASCII V 25 EBCDIC 4 2 Reserved 5 0 1 NRZ NRZI 7 6 00 01 10 11 M4 M5 V 25 disabled V 25 bisync enabled V 25 SDLC enabled Async enabled ...

Page 156: ... C 20 V 3229 V 3229L 6 Status Registers default ...

Page 157: ...ning sequence V 32 training sequence 7 1 Reserved Table 11 0 0 1 L1 L2 2 wire leased line only 4 wire leased line only 1 0 1 LC1 LC2 Line current disconnect short Line current disconnect long 2 0 1 LC LC1 or LC2 Line current disconnect disable Line current disconnect enable 3 0 1 DB DB1 Dial backup manual Dial backup automatic 7 4 Reserved ...

Page 158: ...al analog disable Bilateral analog enable 1 0 1 DG DG1 Bilateral digital disable Bilateral digital enable 2 0 1 LA LA1 DTE commanded LAL disable DTE commanded LAL enable 3 0 1 RD RD1 DTE commanded RDL disable DTE commanded RDL enable 7 4 Reserved Table 13 4 0 Reserved 5 0 1 Send connect message DTE rate Send connect message DCE rate 7 6 Reserved ...

Page 159: ...V 3229 V 3229L C 23 6 Status Registers S40 50 ...

Page 160: ...e S52 register selects leased line transmit level from 0 to 21 dBm in 1 dB increments default 801 V 32 Timeout S53 The S53 register selects 801 ACU V 32 timeout Table 14 Bit Val ue Command Description 4 0 9 to 21 TDn Transmit level in dBm 9 through 21 dBm 7 5 Reserved Table 15 Bit Val ue Command Description 3 0 0 to 21 TLn Transmit level in dBm 0 through 21 dBm 7 4 Reserved ...

Page 161: ...Registers default Table 16 Bit Val ue Command Description 0 0 1 801 V 32 timeout long 801 V 32 timeout short 1 Reserved 3 2 00 01 10 11 R R1 R2 R3 Auto rate renegotiation threshold dis abled Low BER Medium BER High BER 7 4 Reserved ...

Page 162: ...l Enable DTE XON XOFF flow control Enable CTS flow control to the DTE Enable bilateral CTS RTS flow control 2 Reserved 3 0 1 G G1 Disable modem port flow control Enable modem port XON XOFF flow control 4 0 1 X X1 No XON XOFF characters to remote Pass XON XOFF characters to remote 6 5 00 01 10 11 Q4 Q5 Q6 Q7 Disable flow control from DCE Enable XON XOFF flow control Enable CTS flow control to the D...

Page 163: ...tatus Registers default Table 18 1 0 00 01 10 11 C C2 C3 C1 Compression disabled Compression enabled on transmit data only Compression enabled on receive data only Compression enabled on transmit and receive data 7 2 Reserved ...

Page 164: ...o data is sent or received This register is active when in error control mode 0 disables timer default Break Control S59 The S59 register determines the action taken when a Table 19 0 0 1 RC RC1 Standard number codes 15 4800 bps 18 9600 bps Alternate number codes 11 4800 bps 12 9600 bps 7 1 Reserved Table 20 Bit Val ue Command Description 7 0 0 1 255 T Tn Disable Timer value in minutes n 1 255 ...

Page 165: ...efer to Break Control section in Chapter 5 for further explanation default Table 21 Bit Val ue Command Description 2 0 000 001 010 011 100 101 K K1 K2 K3 K4 K5 Break option 0 Break option 1 Break option 2 Break option 3 Break option 4 Break option 5 7 3 Reserved ...

Page 166: ...auto reliable data buffer Buffer data for 4 seconds or 200 characters 5 3 111 110 101 100 011 000 O U Y Z Originate an MNP link Accept an MNP link Switch to MNP from normal Switch to normal from MNP Mode selected from S70 6 0 1 R R1 RI blinks for ring and remains on for duration of call RI blinks for ring and turns off when call is answered 7 0 1 V V1 Disable protocol result codes Enable protocol ...

Page 167: ...V 3229 V 3229L C 31 6 Status Registers default 3 0 1 7 bit word length 8 bit word length 5 4 00 01 10 11 Mark parity No parity Odd parity Even parity 7 6 Reserved Table 23 ...

Page 168: ...Transmit Block Size S63 The S63 register sets the maximum transmit block size default Auto Reliable Fallback Character S64 Table 24 Bit Val ue Command Description 7 0 0 1 255 D Dn Buffer disabled Disconnect buffer delay value n 1 255 seconds Table 25 Bit Val ue Command Description 7 0 63 127 191 255 A A1 A2 A3 Maximum block size 64 Maximum block size 128 Maximum block size 192 Maximum block size 2...

Page 169: ... Status S67 The S67 register indicates the true data link DCE speed This register is for reference only Table 26 Bit Val ue Command Description 7 0 0 1 127 A An Disable auto reliable fallback character ASCII value 1 127 n 1 127 Table 27 0 0 1 Y Y1 User option 1 loaded at powerup reset User option 2 loaded at powerup reset 7 1 Reserved Table 28 Bit Val ue Command Description ...

Page 170: ... maximum originate connect rate is deter mined by S69 3 0 0000 0001 0010 0011 0100 0111 0101 0110 1000 1001 N A 300 bps 1200 bps 2400 bps 4800 bps 7200 bps 9600 bps uncoded 9600 bps trellis 12000 bps 14400 bps 7 4 Reserved Table 29 Bit Val ue Command Description 3 0 0000 0001 0010 0011 0100 0111 0101 0110 1000 1001 B B1 B2 B3 B4 B5 B6 B7 B8 B9 Use rate indicated by S80 300 bps 1200 bps 2400 bps 48...

Page 171: ...V 3229 V 3229L C 35 6 Status Registers default ...

Page 172: ... normal mode Modes allowing protocol fallback are referred to as auto reliable default Operating Mode Status S71 The S71 register indicates the level of error control ling protocol This register is for reference only Table 30 Bit Val ue Command Description 2 0 000 001 010 011 100 101 110 111 N N1 N2 N3 N4 N5 N6 N7 Normal Direct MNP only reliable MNP or normal auto reliable LAPM only reliable LAPM ...

Page 173: ...Command Description 2 0 000 001 010 011 100 101 110 111 Protocol not active Protocol negotiation in progress MNP level 2 active MNP level 3 active MNP level 4 active MNP level 5 active MNP with data compression LAPM active LAPM with data compression active 7 3 Reserved ...

Page 174: ...t is 30 seconds Table 32 0 0 1 J J1 Disable slaved DTE DCE constant speed DTE on Enable slaved DTE DCE constant speed DTE off 1 0 1 Link parity option disabled Link parity option enabled 2 0 1 No link parity error Link parity error received cleared on read 3 0 1 R2 CTS does not follow DCD CTS follows DCD 4 0 1 R9 CTS does not equal RTS CTS equals RTS 6 5 Reserved 7 0 1 Disable autocallback Enable ...

Page 175: ...V 3229 V 3229L C 39 6 Status Registers Table 33 Bit Val ue Command Description 7 0 0 255 Time in seconds before autocallback ...

Page 176: ...35 700 ms Serial Port Speed S80 The S80 register indicates the serial port speed default S81 83 Table 34 Bit Val ue Command Description 7 0 1 255 B Bn Send break Set break length n 1 255 Table 35 Bit Val ue Command Description 3 0 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 300 bps 1200 bps 2400 bps 4800 bps 7200 bps 9600 bps 12000 bps 14400 bps 19200 bps 38400 bps 57600 bps 7 4 Reserve...

Page 177: ...D goes low in RDL and re mote configuration Remote DCD goes high in RDL and remote configuration 2 0 1 Fallback to V 22 rates normally Reduced time to fallback to V 22 rates 3 0 1 Answerback normally Reduced answerback time 4 0 1 With DTR disconnects 4 DTR transi tions initiate dial backup With DTR disconnects 1 DTR transition initiates dial backup 7 5 Reserved ...

Page 178: ...nd enter the DTE PARAMETERS submenu Select SYNC DATA Advance to DIAL METHOD Select either V 25 BISYNC DIALER or V 25 SDLC DIALER or V 25 ASYNC DIALER and then select either ASCII or EBCDIC character format Note The modem must be configured as V 25 SDLC ASCII NRZ for use with an AS400 IBM computer Autodialer Command Strings and Parameters Most command strings for the autodialer include two parts th...

Page 179: ...NES Use the following guidelines when working with V 25 bis software An indicator enclosed in less than greater than signs represents a specific character in the appro priate character set ASCII or EBCDIC sp space Each response below is considered an individual message per V 25 bis conventions A dial command with intermediate call progress enabled sync mode ASCII EBCDIC character set is illustrate...

Page 180: ...therwise the following expla nations for invalid INV responses apply INVC Any transmission error parity framing etc INVMS Receiving too many characters for any command INVMS Anycommandfollowedbyasemicolon INVPS This message has one of three possible meanings Any parameter set ending with asemico lon Any parameter set containing too many or not enough parameters this includes any command entered wi...

Page 181: ... contain ing no valid only ignored characters Any parameter set containing an out of range parameter DIAL PARAMETERS Table 7 1 lists and describes the parameters used in autodialing The memory available for dialing can hold up to 40 characters Parameters inserted for readability are not counted Table 1 Character Function 0 thru 9 DTMF and pulse digit and DTMF digit Wait for dial tone W Wait for 2n...

Page 182: ...d nn n The modem accepts up to 40 dial parameters excluding the CRN command and any leading spaces Responses VAL Valid command received Transmitted on receiving an error free command with no transmission error such as a parity error This confirmation is sent before the com mand is executed Pause for programmed delay time P Pulse dialing T Tone dialing Flash go on hook for Insert equa tion here ms ...

Page 183: ... syntax error Examples CRN 205 555 0124 CRN semicolon invalid INVPS Invalid command parameter syntax er ror Examples CRN 205 555 0124 CRN 205 555 0124 CRN INVPV Invalid command parameter value error Examples CRN 205 555 012Q CRN CFIET Call failure reorder or busy CFIRT Call failure timeout occurred CFIDT Call failure no dial tone INC ...

Page 184: ...ediate Call Progress Responses The following responses are given only if enabled Refer to the OPTIONS section later in this chapter CNX sp nnnnnBPS sp ccccc where nnnnn is the line speed and ccccc is an identifier with a max imum of five characters such as V 29 This connect response appears after handshake completed but before DSR is activated This response is required if the intermediate call pro...

Page 185: ...ll progress messages CFI etc If the call fails to connect and the number is linked with other numbers the autodialer tries to call the next number in the list of linked numbers Request List of Stored Numbers RLN The request list of stored numbers command is an RLN Responses INVCU Invalid command command unknown Example TLN INVMS Invalid command message syntax error Example RLN If no number is stor...

Page 186: ...p a nn n where a is the stored number address and nn n is the number stored Disregard Incoming Call DIC The command for disregarding an incoming call does not require parameters If no call is incoming the command is ignored Responses VAL Valid command received Transmitted on receiving an error free command with no transmission error such as a parity error This confirmation is sent before the com m...

Page 187: ... transmission error such as a parity error This confirmation is sent before the com mand is executed INVCU Invalid command command unknown Example TIC INVMS Invalid command message syntax error Example SIC Redial Last Number CRR n The CRR n command redials the last number a maximum of n times If no parameters are present the modem redials once Also the maximum number of redials the amount of time ...

Page 188: ...numbers to be dialed if a call failure occurs Only forward linking to one other number is allowed so address 1 can be linked to 4 to 8 to 9 etc however using this example if address 4 is dialed by a CRS command without connection it links forward to 8 then to 9 If all these fail to connect the autodialer will not back link to address 1 unless circular linking is used Numbers may be linked as 4 to ...

Page 189: ...nses VAL Valid command received Transmitted on receiving an error free command with no transmission error such as a parity error This confirmation is sent before the com mand is executed INVCU Invalid command command unknown Example TRL 1 5 INVMS Invalid command message syntax error Examples PRL 1 5 PRL INVPS Invalid command parameter syntax er ror Examples PRL 1 5 PRL 1 0 0 PRL 1 PRL PRL 001 5 IN...

Page 190: ...lid command command unknown Example TLL INVMS Invalid command message syntax error Example RLL LSL List linked numbers InallLSL examples if no number isstored at the specified address no response is sent The separator field is an etb sp sp stx LSL sp The last LSL string ends with etx per V 25 bis For synchronous bit oriented operation each LSL string is treated as an individual message per V 25 bi...

Page 191: ...arameters Responses INVCU Invalid command command unknown Example TLV INVMS Invalid command message syntax error Example RLV LSV List version The version information is sent to the DTE as LSV sp S362700xxx01yyyddr sp where xxx is the code revision of the mi crocontroller PROM and yyy is the code revision The dd is the model dash number and the r is the printed circuit board revi sion MODEM OPTIONS...

Page 192: ... settings and default values The modem must be able to accept 40 non ignored characters besides the PRO command leading zeros and semicolons are not considered ignored charac ters Responses VAL Valid command received Transmitted on receiving an error free command with no transmission error such as a parity error This confirmation is sent before the com mand is executed INVCU Invalid command comman...

Page 193: ... options is being changed The conditions for this invalid response are as follows An undefined option number is speci fied In the above example if option 12 is undefined for a certain modem and no other error conditions apply options 10 and 11 would be changed as specified in the command message The next option to be changed would be option 12 The modem would detect that this is an unde fined opti...

Page 194: ...e modem would then detect that the value is unde fined or out of range for that option stop execution of the command and return an INVPV sp 013 message Options 10 through 12 wouldstill bechanged as com manded options 13 and 14 would be un changed Save Current Settings PRK PRK saves option settings current Responses VAL Valid command received Transmitted on receiving an error free command with no t...

Page 195: ...number Note Restoring a factory option set other than fac tory option 9 disables the V 25 synchronous dialer If no parameter follows the command the modem automatically selects factory option set 1 Responses VAL Valid command received Transmitted on receiving an error free command with no transmission error such as a parity error This confirmation is sent before the com mand is executed ...

Page 196: ...RP 1 PRP 1 1 PRP 001 INVPV Invalid command parameter value error Example PRP 5 where factory default 5 is not defined for the modem Current modem factory op tions are 1 9 Request List of Stored Options RLO xxx yy The request list of stored options command is RLO followed by an optional 1 to 3 digit decimal address and a 1 or 2 digit decimal count The OPTIONS section lists all available options wit...

Page 197: ...nd command unknown Example TLO 0 1 INVMS Invalid command message syntax error Examples RLO 0 1 RLO Q 1 INVPS Invalid command parameter syntax er ror Examples RLO 0 1 RLO 0 1 4 RLO 0 001 INVPV Invalid command parameter value error Examples RLO 0 Q RLO 0 0 RLO999 45 LSO List stored options The separator sep is a ...

Page 198: ...ep xxx ooo Each value must be padded with leading zeros so that each field has three charac ters Option zero would be sent as LSO sp 000 000 If only an address follows the command the single requested option is sent to the DTE as LSO sp xxx ooo If address and count follow the command the requested count of options starting with the specified address are sent to the DTE as LSO sp xxx ooo sep xxx oo...

Page 199: ...lt value 0 003 Blind dial 0 Disable 1 Enable Default value 0 004 006 Not applicable 007 Long space disconnect 0 Disable 1 Enable Default value 1 008 019 Not applicable 020 Programmable permissive operation 0 Permissive 1 Programmable Default value 0 021 022 Not applicable 023 049 Reserved for future use ...

Page 200: ...d line operation Default value 0 051 Primary transmit receive rate See Rate Select section below Default value 36 9600 bps 052 054 Not applicable 055 Transmit clock 0 Internal 1 External 2 Receive slave Default value 0 056 Leased line transmit level Transmit level decimal dBm Default value 0 057 062 Not applicable 063 Autoanswer ...

Page 201: ...C 24 V 3229 V 3229L 7 V 25 bis Autodialer 0 Disable 1 Enable answer after 1 to 255 rings Default value 1 064 Line current disconnect 0 Off 1 Short 8 ms 2 Long 90 ms Default value 2 065 075 Not applicable ...

Page 202: ... N A 6 Off while dialing Default value 4 077 Speaker volume 0 Low 1 Medium 2 High Default value 1 078 084 Not applicable 085 Constant carrier RTS CTS delay 0 to 250 ms Must be set in increments of 10 ms 10 20 30 250 Default value 0 086 Not applicable 087 DTR dropout timer 0 to 255 in 10 ms increments ...

Page 203: ...comma in dial string 0 invalid 1 to 255 seconds Default value 2 090 Carriage return character 13 decimal is ASCII and EBCDIC default 091 Line feed character 10 decimal is ASCII default 37 decimal is EBCDIC default 092 Guard tone 0 None 1 550 Hz 2 1800 Hz Default value 0 093 Carrier detect delay 0 Off 1 to 255 in increments of 10 ms Default value 6 60 ms 094 ...

Page 204: ... address Stored telephone number address to dial on DTR off to on transition Default value 1 096 DTR dial 0 Disable 1 Enable 2 N A Default value 0 097 Not applicable 098 Call timeout 0 Off 1 255 sec Default value 30 sec 099 102 Not applicable 103 Signal quality retrain 0 Disable 1 Send training sequence on poor quality Default value 1 104 106 ...

Page 205: ...ble 903 Bilateral loop 0 Disable 1 Enable Default value 0 During a test bilateral loop is defined as follows Test Commanded Loop 1 Loop 2 Loop 3 Loop 4 Bilateral Loop Loop 2 Loop 1 Loop 4 Loop 3 Loop definitions are per CCITT V 54 904 DTE commanded remote digital loopback 0 Disable 1 Enable Default value 0 905 ...

Page 206: ...e 1 Enable Default value 0 906 Remote commanded test 0 Disable 1 Enable Default value 1 907 Test timer 0 Until DTR drops TTT 1 to 255 sec Default value 0 908 Not applicable 909 999 Reserved for future use Rate Select 000 006 Not applicable 007 V 22 1200 bps 008 V 22 bis 2400 bps 009 033 ...

Page 207: ...ho canceling 035 V 32 9600 bps echo canceling 036 V 32 9600 bps trellis echo canceling 037 045 Not applicable 046 V 32 bis 7200 bps trellis echo canceling 047 V 32 bis 12 000 bps trellis echo canceling 048 V 32 bis 14 400 bps trellis echo canceling 049 999 Reserved for future use ...

Page 208: ... is Microcom Network ing Protocol that has become an industry standard by the number of its users The use of V 42 bis requires both local and remote modems to be V 42 bis compatible Error control protocol is transparent to the user and requires no special hardware or software Data to be transmitted is put in a buffer so the modem can retransmit it if an error occurs The modem also buffers data rec...

Page 209: ... allows the protocol to fallback to normal mode CONSTANTSPEED INTERFACE The modem serial port adapts to the data rate of the DTE and does not change speed if the modem tele phone line connects at another speed Therefore the DTE to DCE interface speed is constant DATA COMPRESSION Using MNP Class 5 data compression the modem can achieve data throughput approaching 28800 bps With LAPM data compressio...

Page 210: ...ient for ASCII text files For maximum throughput when using data compres sion the terminal should be set to a higher speed than the true data link speed with the constant speed interface on and flow control enabled When trans mitting or receiving data files in one direction the throughput can be increased for V 42 bis by having extra buffer and more processor time with the C2 and C3 data compressi...

Page 211: ...229L 8 Protocols NORMAL MODE No error control with or without constant speed DTE interface Data is buffered DIRECT MODE The DTE speed and DCE speed are forced to be the same No error control or buffering FLOW CONTROL ...

Page 212: ...he modem faster than it can send them to the remote modem The modem holds characters in an internal buffer until they can be transmitted When this buffer is full the modem uses flow control to stop data from the DTE As the modem continues to transmit data and the buffer empties flow control is again used to start data from the DTE ...

Page 213: ...ual rating Repeated failure indicates a more serious problem MAINTENANCE The modem provides maintenance free service Pe riodically it is necessary to remove dust that has collected on internal components Remove dust with a soft bristle brush and low pressure air or vacuum Before attempting diagnostic tests check that all connectors and plugs are firmly inserted The test procedures will identify th...

Page 214: ... C 2 V 3229 V 3229L 9 Maintenance ...

Page 215: ...ize Width 7 0 inches 17 78 cm Depth 10 5 inches 26 67 cm Height 2 25 inches 5 72 cm Weight 2 lbs 13 oz 1 28 kg Environmental Conditions Temperature Operation 32 F to 122 F 0 C to 50 C Storage 40 F to 158 F 40 C to 70 C Humidity 0 to 95 relative humidity noncondensing Power ...

Page 216: ...uivalent 16 dB nominal loss frequency translation up to 10 Hz Digital Interface Conforms to EIA 232D and CCITT V 24 Modem Data Rates 14400 12000 9600 and 7200 trellis coded 9600 and 4800 uncoded as stated in CCITT recommendation V 32 bis 2400 and 1200 compatible with CCITT recommen dation V 22 bis 300 compatible with Bell specification 103 Modulation 14400 12000 9600 7200 4800 2400 QAM with suppre...

Page 217: ...Space 1070 Hz 5 2025 Ηz 5 Internal Transmit Clock Frequency Selected bit rate 0 01 External Transmit Clock Frequency Selected bit rate 0 01 Transmit Output Level Leased line Dial line 0 through 21 dBm 9 through 21 dBm Operation 4 wire full duplex private line 2 wire full duplex private line or PSTN Carrier Detect Level Dynamic to 43 dBm Telco Connection ...

Page 218: ...ations 8 pin modular jack dial and private lines Testing 511 PN pattern per V 52 V 54 remote loopback control Line Equalization Automatic adaptive RTS CTS Delay From 0 2 ms to 150 2 ms user selectable in 10 ms increments The default is 0 ms ...

Page 219: ...ts to the PSTN dial up lines Pin functions are Pins 1 2 Not used Pin 3 MI Switch hook on exclusion key tele phone Pin 4 R Ring side of telephone line Pin 5 T Tip side of telephone line Pin 6 MIC Switch hook on exclusion key tele phone Pin 7 PR To data jack program resistor Pin 8 PC To data jack program resistor TELSET LEASED ...

Page 220: ...NE jack allows a standard telephone or a leased line to be connected to the modem The pin functions for this jack are Pins 1 2 Transmit pair 4 wire leased line or Tx and Rx for 2 wire leased line Pins 4 5 Ring and tip respectively of telephone line for TELSET Pins 7 8 Receive pair 4 wire leased line ...

Page 221: ...V 3229 V 3229L C C Reference Interfaces ...

Page 222: ... C D V 3229 V 3229L Reference Phone Jack Descriptions ...

Page 223: ...re Ensure the units are turned on and remote tests are enabled at both sites before starting the fault isolation procedure Note In some cases the observer must distinguish between rapid LED blinking and steady on in tests TELEPHONE INTERFACE Connect the modem to the dial up line via the DIAL jack on the back panel Connect a telephone to the TELSET LEASED LINE jack on the back panel of the modem Pr...

Page 224: ...ok terminates the local modem leased lines into 600 ohms and connects the local modem transmit output amplifier back to its own receiver Transmit input data from the terminal is inhibited and is substituted with a V 52 test pattern This test checks operation of the local modem mod ulator and demodulator circuitry and should be at tempted at both local and remote sites if operators are available Wh...

Page 225: ...V 3229 V 3229L C C Reference Test Procedures RD and or TD may be on off or flashing depending on the type of DTE and its operating state ...

Page 226: ...hould remain the same except for CS which should turn on If the indicators are correct the modem is probably operating correctly If the preceding tests were not successful call Tech nical Services Step 2 This step determines the performance of the local and remote modems and the telephone circuits It also determines each modem s ability to receive a trans mitted signal from the other site properly...

Page 227: ...dicators should be Tofurthertestthemodemandcommunicationslink reverse the system loopback First exit the existing loopback test Reverse the roles of the local and remote modems and repeat step two Note If the bilateral digital loop is enabled at the local modem the DTE interface is looped to itself through the modem and permits the DTE and inter face circuitry to be checked Step 3 This step determ...

Page 228: ...modem and back to the local modem At the local modem the front panel indicators under ideal conditions should be The TEST PATTERN ERRORS display counts re ceived errors In this test you are connecting two telephone line links in series doubling the distortion effects A telephone link indicated as marginal by this test may be satisfactory as used in normal operation After determining the quality of...

Page 229: ...e LCD dis plays a cumulative error count For other tests the DTE transmission is the test signal Disparity be tween DTE transmitted and received characters indi cates errors Table C 1 indicates with an X the operating mode required for specific tests Table C 1 Test Operating Mode Requirements Table 1 Test Offline Online LAL X LAL TP X RAL 4 W X RAL TP 4 W X LDL X RDL X RDL TP X TP X ...

Page 230: ...ased lines are terminated into 600 ohms Figure C 1 If operating 2 wire over the PSTN any call is terminated and the modem is forced on hook Figure C 2 Note Figure C 1 through C 8 include LED indica tions for diagnostic tests These indications are valid when DTE options are set by factory option set 1 and RTS is active from the DTE Where indicated RD and or TD may be on off or flashing depending on...

Page 231: ...ng modem signals the remote modem to go to Remote Analog Loopback The remote receive leased line connects to the transmit leased line through a buffer amplifier Figure 3 4 The remote modem transmitter goes off but its receiver stays connected and waits for the signal to end the test Local Digital Loop ...

Page 232: ...s the remote modem to enter Digital Loopback The remote modem receives the data digitally processes it and retransmits the data back to the local modem If Digital Bilateral Loopback is enabled the remote DTE is looped back to itself Figure C 6 Test Pattern In Test Pattern transmit data from the local DTE is blocked and replaced by a V 52 compatible test pat tern When the modem transmits the test p...

Page 233: ...rocedures When Local Analog Loopback Remote Analog Loopback or Remote Digital Loopback is selected the locate DTE transmits data may be replaced by a V 52 compatible test pattern Figures C 7 and C 8 To do so answer yes to the LCD prompt ...

Page 234: ...tion code command prefix A 5 4 Repeat last command 5 23 S2 Escape sequence pause pause S12 A 5 16 Answer D 5 12 Dial T 5 13 S14 Tone dial P 5 13 S14 Pulse dial 5 13 S8 Long pause 2 sec or S8 value W 5 13 S7 Wait for 2nd dial tone S7 value 5 13 Flash switchboard R 5 14 Switch to answer mode after dialing 5 14 Wait for 5 seconds of silence 5 14 Return to command mode after dialing S n 5 15 Dial stor...

Page 235: ...2 Speaker volume medium L3 Speaker volume high M 5 25 S22 Speaker off M1 Speaker off when carrier is present M2 Speaker always on M3 Speaker off when dialing and carrier is present O 5 25 Restore data mode after escape Q 5 6 S14 Response displays on Q1 Response displays off Q2 Response displays on in originate mode only Sn 6 4 Read value in register n decimal Sn Read value in register n hexadecima...

Page 236: ... disconnect enabled Z 5 36 Reset to user option set 1 Z1 Reset to user option set 2 C 5 17 S21 DCD always on C1 DCD on while carrier is present C2 DCD off 5 seconds after disconnect C3 DCD follows remote RTS D 5 18 S21 DTR ignored D1 DTR recalls command mode D2 DTR disconnects D3 DTR disconnects and resets modem to stored configuration F or F1 5 35 Restore factory configuration 1 F2 Restore factor...

Page 237: ...dialer with BISYNC protocol sync data M5 V 25 bis autodialer with SDLC protocol sync data P 5 28 S22 39 61 pulse make break ratio P1 33 67 pulse make break ratio R 5 19 S21 CTS normal operating state R1 CTS forced on R2 S72 CTS follows DCD R9 CTS equals RTS S 5 17 S21 DSR always on S1 DSR on when ready to accept data S2 DSR off for 5 seconds after disconnect S3 DSR follows off hook OH T 5 21 Termi...

Page 238: ...W1 Store current configuration to user option set 2 X 5 28 S27 Internal clock X1 External clock X2 Receive clock Y 5 35 S66 Powerup with user option set 1 Y1 Powerup with user option set 2 Y Display powerup option set Zn 5 36 Store dial string n dial string A 5 43 S64 Disable auto reliable fallback character An Set auto reliable fallback character to n n ASCII 1 127 B 5 28 S69 Use DTE speed B1 300...

Page 239: ...Enable auto retrain P 5 38 Sets remote configuration security code to value entered after equal sign 0 99999999 P D Disabled P Displays remote configuration security code of local modem P blank Clears the security code R 5 30 S53 Disable auto rate renegotiation R1 Enable auto rate renegotiation using low BER R2 Enable auto rate renegotiation using medium BER R3 Enable auto rate renegotiation using...

Page 240: ... or 200 characters G 5 46 S54 Disable modem port flow control G1 Enable modem port XON XOFF flow control J 5 41 S72 Disable slaved DTE DCE speed constant speed DTE on J1 Enable slaved DTE DCE speed constant speed DTE off Kn 5 46 S59 Selects action when encountering a break K Break option 0 K1 Break option 1 K2 Break option 2 K3 Break option 3 K4 Break option 4 K5 Break option 5 M 5 42 S70 V 42 fas...

Page 241: ...e blinks for ring and remains on for duration of call R1 Ring indicate blinks for ring and turns off when call is answered T 5 48 S58 Disable inactivity timer Tn Set inactivitytimerto n n 1 255minutes U 5 51 S60 Accept an MNP link V 5 43 S60 Disable protocol result codes V1 Enable protocol result codes X 5 45 S54 No XON XOFF characters to remote DCE X1 Pass XON XOFF characters to remote DCE Y 5 51...

Page 242: ...nable fast train LA 5 22 S34 Ignore pin 18 LA1 DTE commanded LAL enabled LB 5 31 Return to leased line from dial backup LC 5 32 S32 Line current disconnect disabled LC1 Short 8 ms line current disconnect LC2 Long 90 ms line current disconnect LD 5 32 Manual dial backup from leased line ND 5 36 Displays the nine stored numbers NT 5 32 S29 AT command set disabled NT1 AT command set enabled OR 5 33 S...

Page 243: ... 0 and 21 corresponding to 0 to 21 db V 5 30 Display product serial number Security Commands S x 5 40 Sets an empty password location to x C x y 5 40 Changes either password where x represents the old password and y is the new one C x 5 40 Deletes password x from memory DR 5 40 Reset security D 5 40 Displays the current status of security D x 5 40 Disables security where x is either password E x 5...

Page 244: ... RW 6 7 DTMF tone duration 80 80 ms S12 RW 6 8 Escape sequence pause 50 1 sec S14 RW 6 9 Bit mapped S16 RO 6 10 System tests 0 S18 RW 6 10 Test timer 0 S21 RW 6 11 Bit mapped S22 RW 6 12 Bit mapped S23 RW 6 12 Bit mapped S25 RW 6 13 DTR recognition time 5 0 5 sec S26 RW 6 13 RTS CTS delay 0 S27 RW 6 13 Bit mapped S28 RW 6 13 Lookback timer 15 min S29 RW 6 14 Bit mapped S30 RW 6 14 V 25 mode select...

Page 245: ...parity 6 S62 RW 6 21 Disconnect buffer delay 0 S63 RW 6 21 Maximum block size 255 S64 RW 6 21 Auto reliable character 0 S66 RW 6 21 Bit mapped S67 RO 6 22 Link speed status S69 RW 6 22 Maximum DCE speed S70 RW 6 23 Operating mode 1 S71 RO 6 23 Operating mode status S72 RW 6 24 Bit mapped S78 RW 6 24 Autocallback timer 30 S79 RW 6 25 Break length 35 S80 RO 6 25 Serial port speed 6 S84 RW 6 26 Bit m...

Page 246: ...ne WWait for second type of dial tone Pause for 1 second Pause for 3 seconds Pause for programmed delay time PPulse dial TTone dial Flash go on hook for 1 2 second Parameter separator SpaceClarity characters dash parenthesis period CRR n 7 8 Redial the last number a maximum of n times CRS a 7 6 Dial stored number command a address DIC 7 7 Disregard incoming call command PRK 7 14 Save current optio...

Page 247: ... 9 RLL 7 10 Request list of linked numbers command RLN 7 6 Request list of stored numbers command RLO xxx yy 7 15 Request list of stored options command xxx register address yy option count RLV 7 11 Request list of version information command Response Meaning Message CFIAB Call failure answer back tone but no connection CFIDT Call failure no dial tone CFIET Call failure reorder or busy CFILD Call ...

Page 248: ...200 bps Intermediate call progress connection made at V 32 bis 7200 CNX 4800 bps Intermediate call progress connection made at V 32 bis 4800 CNX 2400 bps Intermediate call progress connection made at V 32 bis 2400 CNX 1200 bps Intermediate call progress connection made at V 32 bis 1200 INC Incoming ring detected INVCU Invalid command command unknown INVMS Invalid command message syntax error INVPS...

Page 249: ...ct long Long space disconnect enabled V 22 guard tone disabled TEST OPTIONS Bilateral analog loop disabled Bilateral digital loop disabled DTE local test disabled DTE remote test disabled Remote commanded test enabled Test timeout off PROTOCOL OPTIONS LAPM protocol enabled MNP protocol enabled Protocol fallback enabled Data compression normal Constant DTE speed DTE flow control XON XOFF DCE flow c...

Page 250: ...ct SPEAKER OPTIONS Volume medium On until carrier detect FACTORY OPTION SET 2 ASYNCHRONOUS DIAL UP WITHOUT V 42 bis PROTOCOL AT F2 MODEM OPTIONS DCE rate 14400 Normal originate Fast train disabled Auto retrain enabled SQ auto rate disabled Internal transmit clock Dial TX level 10 dBm Dial line Jack type RJ11 permissive Line current disconnect long Long space disconnect enabled V 22 guard tone disa...

Page 251: ...ct disabled DIAL LINE OPTIONS Tone dial Auto dial 1 Wait for dial tone Wait delay 2 seconds Pause delay 2 seconds Call timeout 30 seconds Answer on 1 ring 801 V 32b timeout long Autocallback disabled DTE OPTIONS Async data DTE rate 9600 8 bit No parity Async controlled dialer AT command set enabled Ignores DTR DSR forced high DCD forced high CTS forced high DTE fallback disabled Options retained a...

Page 252: ...d V 22 guard tone disabled TEST OPTIONS Bilateral analog loop disabled Bilateral digital loop disabled DTE local test disabled DTE remote test disabled Remote commanded test enabled Test timeout off PROTOCOL OPTIONS LAPM protocol disabled MNP protocol disabled Direct mode DTE flow control disabled DCE flow control disabled XON XOFF pass through disabled Inactivity timer off Break Option 0 V 42 fas...

Page 253: ...faults DTE OPTIONS Sync data Dial method manual AT command set disabled DTR disconnects DSR normal DCD normal CTS follows RTS RTS CTS delay 0 ms DTE fallback disabled Options retained at disconnect SPEAKER OPTIONS Volume medium On until carrier detect ...

Page 254: ...type RJ11 permissive Line current disconnect long Long space disconnect enabled V 22 guard tone disabled TEST OPTIONS Bilateral analog loop enabled Bilateral digital loop enabled DTE local test disabled DTE remote test disabled Remote commanded test enabled Test timeout off PROTOCOL OPTIONS LAPM protocol disabled MNP protocol disabled Direct mode DTE flow control disabled DCE flow control disabled...

Page 255: ... on 1 ring 801 V 32b timeout long Autocallback disabled DTE OPTIONS Sync data AT command set disabled Ignores DTR DSR normal DCD normal CTS follows RTS RTS CTS delay 0 ms DTE fallback disabled Options retained at disconnect SPEAKER OPTIONS Volume medium Speaker off ...

Page 256: ...er is 15 min Jack type RJ11 permissive Line current disconnect long Long space disconnect enabled V 22 guard tone disabled DTE fallback disabled Options retained at disconnect l TEST OPTIONS Bilateral analog loop disabled Bilateral digital loop disabled DTE local test disabled DTE remote test disabled Remote commanded test enabled Test timeout off PROTOCOL OPTIONS LAPM protocol enabled MNP protoco...

Page 257: ...ommand set enabled Ignores DTR DSR forced high DCD forced high CTS forced high SPEAKER OPTIONS Volume medium Speaker off Indicates variation from factory option set 1 FACTORY OPTION SET 6 ASYNCHRONOUS 4 WIRE LEASED LINE WITHOUT V 42 bis PROTOCOL AT F6 MODEM OPTIONS DCE rate 14400 trellis Normal originate Fast train disabled Auto retrain enabled SQ auto rate disabled Internal transmit clock Dial Tx...

Page 258: ...ol disabled MNP protocol disabled Direct mode DTE flow control disabled DCE flow control disabled XON XOFF pass through disabled Inactivity timer off Break option 0 V 42 fast detect disabled DIAL LINE OPTIONS Tone dial Auto dial 1 Wait for dial tone Wait delay 2 seconds Pause delay 2 seconds Call timeout 30 seconds Answer on 1 ring 801 V 32b timeout long Autocallback disabled DTE OPTIONS Async dat...

Page 259: ... C Z V 3229 V 3229L Reference Command Index and Defaults SPEAKER OPTIONS Volume medium Speaker off ...

Page 260: ...timer is 15 min Jack type RJ11 permissive Line current disconnect long Long space disconnect enabled V 22 guard tone disabled TEST OPTIONS Bilateral analog loop enabled Bilateral digital loop enabled DTE local test disabled DTE remote test disabled Remote commanded test enabled Test timeout off PROTOCOL OPTIONS LAPM protocol disabled MNP protocol disabled Direct mode DTE flow control disabled DCE ...

Page 261: ...conds Answer on 1 ring 801 V 32b timeout long Autocallback disabled DTE OPTIONS Sync data AT command set disabled Ignores DTR DSR normal DCD normal CTS follows RTS RTS CTS delay 0 ms DTE fallback disabled Options retained at disconnect SPEAKER OPTIONS Volume medium Speaker off ...

Page 262: ...er is 15 min Jack type RJ11 permissive Line current disconnect long Long space disconnect enabled V 22 guard tone disabled TEST OPTIONS Bilateral analog loop enabled Bilateral digital loop enabled DTE local test disabled DTE remote test disabled Remote commanded test enabled Test timeout off PROTOCOL OPTIONS LAPM protocol disabled MNP protocol disabled Direct mode DTE flow control disabled DCE flo...

Page 263: ...conds Answer on 1 ring 801 V 32b timeout long Autocallback disabled DTE OPTIONS Sync data AT command set disabled Ignores DTR DSR normal DCD normal CTS follows RTS RTS CTS delay 0 ms DTE fallback disabled Options retained at disconnect SPEAKER OPTIONS Volume medium Speaker off ...

Page 264: ...enabled V 22 guard tone disabled TEST OPTIONS Bilateral analog loop disabled Bilateral digital loop disabled DTE local test disabled DTE remote test disabled Remote commanded test enabled Test timeout off PROTOCOL OPTIONS LAPM protocol disabled MNP protocol disabled Direct mode DTE flow control disabled DCE flow control disabled XON XOFF pass through disabled Inactivity timer off Break option 0 V ...

Page 265: ...DTE OPTIONS Sync data V 25 SDLC dialer Character type ASCII SDLC data format NRZ DTR disconnect DSR normal DCD normal CTS follows RTS RTS CTS delay 0 ms DTE fallback disabled Options retained at disconnect SPEAKER OPTIONS Volume medium On until carrier detect ...

Page 266: ...V 3229 V 3229L C AG Reference Command Index and Defaults Indicates variation from factory option set 1 ...

Page 267: ... BSC Binary Synchronous Com munications BUFF Elastic Buffer C C Celsius CA Circuit Assurance CBX Computerized Private Branch Exchange CC Carrier Control CCITT International Consultative Committee for Telegraph and Telephone CCU Communications Control Unit CD Carrier Detect CFICB Call Failure Indication Lo cal DCE Busy CFIDT Call Failure Indication No Dial Tone CFINT Call Failure Indication No Answ...

Page 268: ... Digital Data Service OR Dataphone Digital Service AT T DDS MR Digital Data Service Multi Rate DIC Disregard Incoming Call Dip Dual In line Package DIS DS Disable DLE Data Link Escape DLO Data Line Occupied DMS Digital Multiplexer System DOC Department of Communica tions Canada DOS Disk Operating System DPR Digit Present DRS Data Rate Select DSR Data Set Ready DSU Data Service Unit DTE Data Termin...

Page 269: ...ulation Fox message Test message The quick brown fox jumps over the lazy dog 0123456789 FSK Frequency Shift Keying FX Foreign Exchange H HDLC High Level Data Link Con trol HDX Half Duplex Transmission Hz Hertz cycles per second I INC Incoming Call INV Invalid INVCU Invalid Command Com mand Unknown INVMS Invalid Command Message Syntax Error INVPS Invalid Command Parame ter Syntax Error INVPV Invali...

Page 270: ...ps MHz MegaHertz Modem Modulator Demodulator MR Modem Ready MR RI Modem Ready Ring Indi cate ms Millisecond MUX Multiplexer N NAK Negative Acknowledgment NET STAT Network Status NRZ Non Return to Zero NRZI Non Return to Zero Inverted NS No Signal NT Network Termination O OH Off Hook OS Out of Service P PBX Private Branch Exchange PC Personal Computer pc Printed circuit board PIW Power Indication P...

Page 271: ...etec tor RLV Request List of Version rms Root Mean Square RMT LB Remote Loopback RNG Ringback Detection RO Receive Only ROM Read Only Memory RT Remote Terminal RTS RS Request to Send RX Receive S S or S T Reference Designator SCC Serial or Satellite Commu nications Controller SD Send Data SDLC Synchronous Data Link Control IBM SGND SG Signal Ground SH Switch Hook SIM SW CR Simulated Switched Carri...

Page 272: ...onous Receiver Transmitter USOC Universal Service Ordering Code V V CCITT Code Designation V 24 List of definitions for inter change circuits between data terminal equipment and data circuit terminating equip ment and provisional amendments May 1977 Vac Volts Alternating Current VAC Value Added Carrier VAL Valid Vdc Volts Direct Current W WATS Wide Area Telecommunica tions Access Method AT T X X C...

Page 273: ...r For additional information contact Motorola 20 Cabot Boulevard Mansfield MA 02048 508 261 4000 TRADEMARKS MNP is a registered trademark of Microcom Incorporated IBM is a registered trademark of International Business Machines Corporation NOTICE All titles versions trademarks claims of compatibility etc of hardware and software products mentioned herein are the sole property and responsibility of...

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