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Datatronics 3314LC User Manual

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UNPACKING AND INSTALLATION
This chapter describes the procedures for unpacking and installing
your modem. Chapter 1 is designed to have normal PC users on-line
quickly.
1.1
Unpacking the Modem
The complete Discovery LCD Fax/Audio modem package includes:
1. Discovery LCD Faxmodem unit
2. User's manual
3. Power supply unit
4. Data and fax communication software
5. RJ-11 to RJ-11 cable
6. RJ-45 to Y terminal cable
7. 6 by 2 terminal block
Carefully inspect the contents of the package for shipping damage. If
there is damage, immediately repack the modem in the original
packing material and contact your dealer.
1.2
Modem Front Panel and LED Indicators
Located on the modem front panel are the LCD, LCD configuration
buttons, LCD Panel Lock switch, the Voice/Data switch, and the LED
indicators. The modem LCD, LCD configuration buttons, Panel Lock
switch and Voice/Data switch are described in Chapter 2. The LED
indicators display current modem operation and status, as explained
below:
MR Modem Ready
Lit when modem is turned on. Flashes when modem is in test
mode.
TR
Terminal Ready
Lit when the computer or terminal is ready.
Page: 1
Chapter 1

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Summary of Contents for Datatronics 3314LC

  • Page 1 Chapter 1 UNPACKING AND INSTALLATION This chapter describes the procedures for unpacking and installing your modem. Chapter 1 is designed to have normal PC users on-line quickly. Unpacking the Modem The complete Discovery LCD Fax/Audio modem package includes: 1. Discovery LCD Faxmodem unit 2.
  • Page 2 RTS Request To Send Lit when local computer (DTE) requests to send data to local modem for transmission. CTS Clear To Send Lit when local modem is ready to receive data from local computer (DTE) for transmission. Auto Answer Lit when modem is set for auto-answer. Flashes when incoming rings are detected.
  • Page 3 The RS-232 connector on the modem rear panel corresponds to the RS-232 cable and connects the local computer to the modem. It is a DB25F (female) and a RS-232 cable in pin assignment and electronic standards. See the following section for more information about the RS-232 cable.
  • Page 4 1) DB25M (male) connector at one end to match the modem conn- ector. 2) A connector that corresponds to your computer's serial port at the other end. For PC users, a standard serial port card has either a DB25M or DB9M connector, and your cable must possess one of these two connectors.
  • Page 5 The distance between the computer and modem is determined by the length of the RS-232 cable. However, a RS-232 cable should not be longer than fifty feet, as signal distortion and interference might occur. A suitable location for your modem includes: 1) A reliable AC power source and a good quality telephone outlet that are not too far away from the computer.
  • Page 6 Since your modem has a standard modem command set, most popular communication software packages are compatible. To install the software, turn on your computer and modem and then follow the software manual instructions. Unfortunately, we are unable to describe software configuration procedures in detail, as the procedures vary with each software package, computer, and application.
  • Page 7 specify a command string which is sent to the modem prior to a dialing session. This string is usually called the Dialing Prefix or Dialing String, and it instructs the modem prior to dialing and going on-line. Listed below are common commands which are helpful for setting the software Dialing Prefix/Dialing String.
  • Page 8 The following two examples set the modem to auto reliable mode, use CTS/RTS flow control, and enable ECDC extended response code sets without baud rate adjustment: AT\J0\N3\Q3\V4%C1 Error correction and Data compressinare both enabled. AT\J0\N3\Q3\V4%C0 Error correction enabled but Data compression disabled.
  • Page 9 Chapter 2 LCD OPERATION AND FUNCTIONS This chapter describes the operation and functions of the modem LCD control panel. Instructions for LCD control panel operation as well as the LCD main menu, directories, subdirectories, and their contents are provided. This chapter is designed to minimize the time required to learn the LCD control panel operation and get the modem on-line.
  • Page 10 You can press the ESC button to view factory EPROM version, LCD will display such as: DATATRONICS 341-008-137 2. Press the ENTER button to view the LCD Main Menu. The LCD will display: <MAIN MENU> STATUS Remember that STATUS is the first possible directory users can view.
  • Page 11 LCD will display PANEL UNLOCKING with a cursor crossing the LCD below the message, until the panel is unlocked. The LCD will then display DATATRONICS PANEL UNLOCKED. Remove your finger from the Panel Lock switch and the LCD displays the original status message.
  • Page 12 Voice/Data Switch The Voice/Data switch on the modem control panel lets you switch between data link and voice link while on-line, without breaking on- line status. In data link you can transmit or receive data through the modem. In voice link you can talk to the other party. To use the Voice/Data feature, both modems need a telephone set connection.
  • Page 13 You may also use the modem as an auto dialing device. First, instruct the modem to dial the desired telephone number. When you hear the remote party answer your call, pick up your telephone handset, press the Voice/Data switch to VOICE and then talk to the other party. Main Menu and Directories The Modem Main Menu has four directories.
  • Page 14 SETUP Main Menu SETUP in the Main Menu contains the following directories: DTE, DCE, COMMAND, LINE, PROTOCOL, CALL BACK,REMOTE ACCESS and MISC. SETUP in the Main Menu provides most of the directories needed for setting and monitoring basic modem functions. SETUP Main Menu: DTE Directory The DTE directory contains the following settings: DTE SPEED:...
  • Page 15 SETUP Main Menu: DCE Directory The DCE directory contains the following settings: DCE SPEED (%B): AUTO, 300, 1200, 2400, 4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400, 28800 PROTOCOL TYPE (-V): V.34 AUTO, V.FC AUTO, V.32BIS AUTO, V.34/V.FC/V.32BIS, V.FC/ V.32BIS, V.34 ONLY, V.FC ONLY, V.32BIS ONLY SYN MODE (&M):...
  • Page 16 DATA BITS: 5,6,7,8 PARITY: NONE, EVEN, ODD, SPACE STOP BIT: 1, 2 COMMAND ECHO (E): ON, OFF RESULT CODE (Q): ON, OFF RESULT FORM (V): SHORT, LONG ESCAPE CHAR (S2): ESCAPE GUARD (S12): xxx 20ms CR CHAR (S3): LF CHAR (S4): BS CHAR (S5): 2.10 SETUP Main Menu: LINE Directory The LINE directory contains the following settings:...
  • Page 17 2.11 SETUP Main Menu: PROTOCOL Directory The PROTOCOL directory contains the following settings: LINK MODE (\N): NORMAL,DIRECT MNP RELIABLE, V42/MNP AUTO, V42 RELIABLE COMPRESSION (%C): ON, OFF MNP BLOCK (\A): 64, 128, 192, 256 SEND ADP/ODP: ON, OFF BREAK CTL (\K): x (0-5) DCE FLOW CTL (\G): ON, OFF...
  • Page 18 The REMOTE ACCESS directory contains the following settings: RA SEC CHANNEL: ON, OFF RA PASSWORD (*P): xxxxxxxxx 2.14 SETUP Main Menu: MISC Directory The MISC directory contains the following settings: FB THRESHOLD: 26400, 24000, 21600, 19200, 16800,14400, 12000, 9600, 7200, 4800, 2400 (not available yet) SECURITY : DTMF CONNECT (@E):...
  • Page 19 2.15 PROFILE Main Menu The PROFILE Main Menu contains the following settings: LOAD DEFAULT (&F): 0. ASY-D-AT-V42BIS 1. ASY-A-AT-V42BIS 2. ASY-D-AT-DIRECT 3. ASY-A-AT-DIRECT 4. ASY-D-AT-NORMAL 5. ASY-A-AT-NORMAL 6. SYN-D-AT-DIRECT 7. SYN-A-AT-DIRECT 8. ASY-V25BIS 9. SYN-BSC-V25BIS 10. SYN-HDLC-V25BIS 11. PWR-2W-LEASED 12. PWR-4W-LEASED SET S REG: Sxx=xxx LOAD PROFILE (Z):...
  • Page 20 #99(OFF) EDIT A TEL# (&Zn=): #0, #1, #2, #3, #4, #5, #6, #7, #8, #9 DIAL STORED (DS=): #0, #1, #2, #3, #4, #5, #6, #7, #8, #9 MULTI PHONE(-M): ON, OFF REDIAL ORDER(-Z=): xxxxxxxxxx TONE CHECK (X): NONE, DIAL TONE, BUSY TONE, DIAL + BUSY TONE WAIT FOR DIAL (S6): xxx sec...
  • Page 21 RDL BY 140: ON, OFF AL BY 141: ON, OFF TEST TIMER (S18): xxx sec (4) The HANG UP directory, contains the following settings: HANG UP: ON, OFF Page: 21...

  • Page 22: Modem Operation

    Chapter 3 MODEM OPERATION This chapter describes modem operation states, protocols, speeds, data formats, error correction, data compression, and modem operation modes. It is designed to help the user understand the modem in a greater detail. Command State and Data State During operation, your modem is either in command state or data state.
  • Page 23 commands. Command state may either be on-line or off-line. When the modem is holding a connection with a remote modem or when it is in an analog loopback test, it is on-line. Otherwise, it is off-line. In data state, the modem is a transparent receiving and sending device. It interprets everything it receives (except the escape sequence) as data and conveys the data to the local computer or remote system.
  • Page 24 with remote modems is called the on-line speed. Since modems are Data Communication Equipment, this is called the DCE speed. On the other hand, the speed over the serial port at which your modem communicates with the local computer is called the serial port speed. Since computers are Data Terminal Equipment, this is called the DTE speed.
  • Page 25 Factory Default Profile The FDP is the default configuration profile stored in your modem's read-only memory (ROM), which is not to be modified by the user. For convenience in different applications, the modem supports 13 FDPs (FDP0 through FDP12). Stored Configuration Profile The SCP is the configuration profile stored in the modem NVRAM which can be retrieved for further use.
  • Page 26 Active Configuration Area The ACA is a portion of the random-access-memory (RAM) in your modem that holds the configuration settings which determine the modem's current operating characteristics. When the modem is turned on or reset by command Z, the ACA is loaded with the FDP (from the modem firmware ROM) and then overwritten by the major SCP (from the NVRAM).

  • Page 27: Special Functions

    Chapter 4 SPECIAL FUNCTIONS This chapter describes special modem operation functions and is designed to help users understand the modem in a greater detail. Speed Dialing Speed dialing lets you issue abbreviated dialing codes instead of whole telephone numbers and requires telephone numbers to be saved in STN. To use speed dialing, specify command S=n or command /n (n=0-9).
  • Page 28 ATX4DT /2 N /5 with swap dialing. Both command lines instruct the modem to dial STN2 first. If STN2 is busy, STN5 is swap dialed. Note that to use swap dialing, busy detection must be enabled by command X3 or X4. Redialing Your modem can automatically redial a call if the line is busy.
  • Page 29 5. Issue command ATA to the other modem to initial it for answering mode. 6. The two modems should then establish a connection and go on- line through the leased line. Note that two modems on a leased line link must be set to exactly the same protocol, one in dialing mode and the other in answering mode.
  • Page 30 Leased Line Dialup Backup The modem supports a dialup backup capability, which automatically dials STN0 through the connected dialup line when the leased line carrier is lost. Thus, a backup connection is automatically initiated if the leased line is disconnected. AT@Y2 Issue this command after connecting both the leased line and dial up line to the modem.
  • Page 31 75 bps and receives at 1200 bps. For Videotex service. The modem uses the V.23 main channel, transmits at 1200 bps and receives at 75 bps. For host side use. With either user or host channels, once the modem connects in V.23 mode, it responds with CONNECT 1200 and data speed between the modem and computer is fixed at 1200bps in both directions.
  • Page 32 4.10 Connection Password Security Your modem supports connection password security, which prevents unauthorized connection to your modem. Enables connection password security and your modem waits for a password from the calling modem. If the correct password is received, the modem establishes a connection, otherwise it responds with NO CONNECTION.
  • Page 33 4.11 Remote Access (RA) The modem supports remote access operation and remote access security. For remote access, first turn on the remote access second channel in the LCD SETUP Main Menu: Remote Access Directory. After the RA SEC CHANNEL is ON, you can configure or issue commands from remote sites.
  • Page 34 4.13 Call Back Security Call back security protects against callers without the right to access your system, allowing you to limit incoming calls to selected persons. Call back security allows 10 telephone numbers to be stored in the NVRAM. After connection with the local modem, an opening message is sent to the caller.
  • Page 35 4.15 V.25bis Operation Your modem is equipped with ITU-T V.25bis protocol, which allows you to enter PSDN through PSTN, while in synchronous mode. The Discovery LCD modem supports Asynchronous Mode, Synchro- nous HDLC Mode (Bit Sync Mode), and Synchronous BSC Mode (Byte Sync Mode).
  • Page 36 Message: If commands are issued properly, you can execute ATA actions (manual answering), and you will receive a CNX response. If the proper commands were not issued, you will receive an INV (failure) response. 2.) CRN (Call Request with Number) Definition: Dial command like ATD.
  • Page 37 Example: CRS 1 (Dials STN1) 2577125 CFIRT (No Carrier) 4.) CNL (Extended V.25bis Command Set) Definition: Executes any AT command except *, %, +, -, &T, &V(Note:&V only effect in Async V.25bis mode.) Limits: None. Message: Successful response is VAL. Failed response is INVCU.
  • Page 38 6.) RLN (Request List of Stored Telephone Number) Definition: Similar to command &V1. Limits: None. Message: Successful response is VAL. Failed response is INVPV. Example: 1. RLN (Lists all) LSN 1; 318 LSN 9 ; 7822456 2. RLN 1 (Lists STN1) LSN 1;...
  • Page 39 3. PRN 10 INVPV (Range: 0-9,) Reponse Message Definitions The following are response messages followed by their definition. 1. INC: Like AT command "ring message." 2. CNX: Like AT command "connect message." 3. VAL: Like AT command "OK message." 4. INVxx: Like AT command "error message."...
  • Page 40 4.16 Voice/Audio Function In addition to data communication and fax transmission, Discovery 2814LC also can run with Voice/Audio management software. Running with the software, Discovery 2814LC can support about 1000 voice mail boxes., receive voice messages, and listen to the voice message or delete message at any time even from remote site.
  • Page 41 Chapter 5 COMMAND REFERENCE This chapter describes all the available modem commands. The default settings, if applicable, are indicated by bold characters. Note that in order to meet local telephone company regulations, some modem commands might have been removed or set to a different default. Answer Call Immediately Command A instructs the modem to take the telephone line off hook and generate a carrier tone.
  • Page 42 Repeat Last Command Command A/ instructs the modem to re-execute the last command line stored in the command buffer. This is the only command that does not require an AT prefix and carriage return. Bell or ITU-T Standard Command B selects the following communications protocols: Selects ITU-T/Bell auto protocol, used in most countries around the world.
  • Page 43 To use swap dialing, either X3 or X4 must be in effect so the modem can detect a busy signal. Dial In Answer (Reverse) Mode Attaching command R at the end of a dial command line instructs the modem to place a call and establish a connection in answer mode. Reverse mode dialing is useful when calling an originate-only modem.
  • Page 44 Command @ instructs the modem to wait for the time specified by register S7 and followed by 5 seconds of continuous silence, before proceeding to dial the following digits. The modem will disconnect and respond with NO ANSWER if it fails to detect continuous silence, or respond with BUSY if it detects a busy tone (either X3 or X4 must be in effect).
  • Page 45 On or Off Hook Command H instructs the modem to go off hook (use the telephone line) or go on hook (hang up). Modem goes on hook. Modem goes off hook. Identification Command I allows the modem‘s product code and firmware version to be checked, and executes firmware tests.
  • Page 46 Selects low speaker volume. Selects medium speaker volume. Selects maximum speaker volume. 5.12 Speaker On or Off Command M turns the modem‘s speaker on or off for call progress monitoring. Turns the speaker off at all times. Turns the speaker on until a connection is established. Turns the speaker on at all times, even after a connection is established.
  • Page 47 5.15 Read Redial Count Issuing N? displays the redial times setting. 5.16 Read Redial Interval Issuing command N5? displays the time interval between the number of redial times. 5.17 On-Line Command O instructs the modem to enter on-line data state. Instructs the modem to enter on-line data state and resume data transmission with the remote modem.
  • Page 48 5.19 Response Codes Command Q enables or disables the sending of response codes after a command line is executed. Enables the sending of response codes. Disables the sending of response codes. This feature is useful if the modem is connected to a printer that prints out undesired response code characters.
  • Page 49 For example: AT DP 9 , T 782-0002 Instructs modem to pulse dial 9, wait for two seconds (comma character), and then tone dial 782- 0002. 5.23 Word or Digital Response Codes Command V instructs the modem to send response codes in either word or digit form.
  • Page 50 5.26 Clear Down Disconnect This command enables or disables the modem clear down disconnect feature. Disables clear down and long space disconnect. Enables long space disconnect. The modem hangs up when it receives 1.6 seconds of continuous break signal. Also, it sends a 4 second break signal before disconnecting when it receives command ATH or when it detects a DTR on-to-off transition if &D2 option is selected.
  • Page 51 5.29 CD Option &C Command &C determines how the modem reacts to the conditions of a CD (Carrier Detect) interchange circuit. &C0 CD is always forced ON. &C1 Modem tracks the data carrier from the remote modem and initials CD accordingly. 5.30 DTR Option &D...
  • Page 52 &F3 For asynchronous, answering, direct links. &F4 For asynchronous, dialing, normal links. &F5 For asynchronous, answering, normal links. &F6 For synchronous, dial in links. &F7 For synchronous, answering, direct links. &F8 For synchronous, V.25bis links. &F9 For synchronous, V.25bis Bisync links. &F10 For synchronous, V.25bis, Data package links.
  • Page 53 5.34 Asynchronous or Synchronous Mode &M Command &M is issued to determine synchronous or asynchronous communications mode operation. Note that this command has the same function as command &Q. &M0 Sets the modem to asynchronous mode to accept asynchronous commands. &M1 Sets the modem to synchronous mode 1 (asynchronous dialing).
  • Page 54 &R1 RTS is ignored and CTS is forced on. 5.38 Data Set Ready (DSR) Option &S Command &S determines how the modem operates the DSR Data Set Ready) signal. Note that command &S is effective only in synchronous mode. &S0 DSR is forced on.
  • Page 55 5.42 TX Clock &X Command &X selects the TX clock setting in synchronous mode. &X0 Sets Internal TX clock to Pin 15 (RS-232). &X1 Sets External TX clock from Pin 24 (RS-232). &X2 Sets Slave TX clock to Pin 15 (RS-232). 5.43 Major Stored Configuration Profile &Y...
  • Page 56 Escape character (+++) instructs the modem to leave data state and enter command state without breaking the connection. Note that this command is only effective in asynchronous mode. For the modem to distinguish escape characters from data, escape characters must be preceded and proceeded by a guard time period. This is called the escape sequence.
  • Page 57 5.48 Check VAR Password This command checks the passwords VP0 and VP1. @C0 Check VAR Password VP0. @C1 Check VAR Password VP1. To check the VAR password VP0 or VP1, you can flow the syntax below with the corresponding response depending on the validity of the password issued.
  • Page 58 Command @F displays the connection password defined by @P, as well as the RA password defined by command *P. 5.52 Closing Message String length up to 60 characters. Command @G sets a closing message. Refer to the syntax below. AT@G <enter> Message: <enter message string>...
  • Page 59 5.55 Set Connection Password @P=x String length up to 9 characters, numbers 0 through 9, *, or #. Command @P=x defines the password required to establish a connection when connection password security is enabled. 5.56 View VAR Buffer A This command views the VAR buffer VP0. It's optional and only available when customer gives his request.
  • Page 60 Command @Y selects modem telephone line operation. @Y0 Selects normal line operation. @Y1 Selects dial up simulate leased line operation. @Y2 Selects leased line backup dialup operation. 5.61 Set Call Back Telephone Number @Zn= n=0-9 String can contain up to 49 dial modifiers. To set the call back telephone number, issue command: @Zn= <dial modifier string>...
  • Page 61 5.63 Remote Access Operation Command *E enables or disables RA operation. Disables RA operation. Enables RA operation. 5.64 Set Remote Access Password Command *P sets an RA password, which is required to establish an RA link. No password is set at the factory. Please note the following before setting the RA password: 1) Command *P must be the last command in a command line.
  • Page 62 Indicates a break of 100 milliseconds. Indicates a break of 200 milliseconds. In reliable links, the break length is a constant 300 milliseconds, regardless of the value of n. If either \B or \B0 are issued, the modem sends a fixed 300 millisecond break to the remote system. 5.67 Auto Reliable Buffer Option Command \C determines how the modem handles data it receives during the initial waiting period when answering a call in auto reliable...
  • Page 63 5.68 Normal Link Flow Control Command \G enables or disables the XON/XOFF flow control on the communications port in a normal link. An XOFF signals the remote modem to stop sending data, while an XON resumes the transmission. Disables XON/XOFF flow control on modem's communications port.
  • Page 64 not send a break signal to the remote system. Modem clears its buffer and immediately sends a break signal to the remote system. Modem immediately sends a break signal to the remote system. Modem sends a break signal to the remote system in sequence with the data received from the serial port.
  • Page 65 stops when CTS is OFF and resumes when CTS is ON. In contrast, data transmission from the modem to the local computer stops when RTS is OFF and resumes when RTS is ON. The serial port generates, but does not respond to XON/XOFF flow control characters.
  • Page 66 V.42) with or without data compression (MNP Class 5/V.42bis). The /NOR identifier means the modem is in normal link. Displays DCE speed and enables MNP/V.42 error correction response codes, without specifying if the connection is with data compression or not. The /REL identifier means the modem is in reliable link (error correction, MNP Class 4), while the /V.42 identifier means the modem is in reliable link (error correction,...
  • Page 67 Enables the XON/XOFF characters pass through to the local computer or the remote system. 5.76 Auto Reliable Fallback Character Range: 0-127 Units: ASCII Default: 0 Command %An defines the ASCII character to be recognized as the auto reliable fallback character during the initial waiting period when the modem auto answers a call.
  • Page 68 5.79 Automatic Retrain Command %E determines if the modem automatically initials a retrain when telephone line quality is poor. %E0 Disables automatic retrain capability. %E1 Enables automatic retrain. When line quality is poor, the modem attempts three times with same speed to re- establish the connection, for a total of six seconds, before hanging up.
  • Page 69 5.84 Leased Line Retry In leased line dialup backup operation, command -Bn determines the number of times (n) the modem attempts to establish a connection on a leased-line. 5.85 Multi-Phone Backup Command -M determines the type of phone system connected to the modem Disables multi-phone backup.
  • Page 70 5.87 Multi-Phone Redial Order Multi-phone redial order set. Multi-phone redial order query. For example: AT N=3 Set redial times to 3. AT-M1 Enables multi-phone redial. AT-Z=426 Dials STN 4, 2, and 6. ATDT 782-2456 If the line is busy, the modem dials STN4,2, and 6;...

  • Page 71: Diagnostic Tests

    Chapter 6 DIAGNOSTIC TESTS There might be times when the modem does not seem to cooperate no matter what you do. Because your communications system is made up of many links, the source of the problem might be the modem, your computer, the telephone circuit, the remote modem, the modem cable, or the remote computer.
  • Page 72 Preliminary Diagnostic Guide A communications problem can stem from the telephone company circuit, local computer, remote computer, modem, or the remote modem. Even if the communications path is in order, communications software parameters may be set incorrectly. The following are suggestions regarding diagnostic tests. Note that all tests should be initiated when the modem is in asynchronous command state with both the computer and modem set to full duplex operation.
  • Page 73 Using the Test Timer Register S18 determines all selftest duration’s, and the modem automatically ends tests and returns to command state when the S18 time expires. The S18 default is zero, to disable the test timer. Ending a Test &T0 A test can be terminated at any time by issuing the escape sequence, causing the modem to enter command state and then issue AT&T0.
  • Page 74 The local digital loopback test (LDL) verifies both the modem and the telephone circuit. This is primarily used to permit a modem that is not ITU-T V.54 compatible to engage in an RDL test with your modem. To initialize the test, issue command AT&T3 with your modem on-line and in command state.
  • Page 75 problem. T e le p h o n e L o c a l M o de m R e m o te M o d e m L in e T ra n s m itte r R e c e iv e r L o c a l R e m o te c o m p u te r...
  • Page 76 The modem then lists the number of errors detected within the time interval. A value of 000 means no errors and 255 means 255 or more errors. 6.10 Local Analog Loopback with Selftest &T8 In the local analog loopback selftest (LALST), the modem generates a test pattern to verify itself.

  • Page 77: Modem Registers

    Appendix A MODEM REGISTERS Modem registers determine operation characteristics. Appendix A describes each register individually, except for registers which cannot be modified. Registers in bold represent default settings. Reading or Changing a Register To read the current content of a register, issue command Sr?. To change the register, use command Sr=.
  • Page 78 Escape Character Range: 0-127 Unit: ASCII Default: 43 Register S2 stores the escape character ASCII decimal value. Default value 43 is an ASCII "+." Carriage Return Character Range: 0-127 Unit: ASCII Default: 13 Register S3 stores the carriage return character ASCII decimal value, which terminates the command line and the response code.
  • Page 79 digits. Register S6 is valid only when X0, X1, or X3 is in effect. If X2 or X4 are in effect, dial tone detection is enabled and the modem will not blind dial. Wait for Carrier After Dialing Range: 2-255 Unit: sec Default: 45 Register S7 determines how long the modem waits for a remote carrier...
  • Page 80 Range: 1-255 Unit: 0.1sec Default: 14 Register S10 determines how long the modem waits before hanging up after detecting a loss of carrier. This delay permits the carrier to momentarily disappear without causing the modem to disconnect. If this register is set to 255, the modem will ignore carrier status as though a carrier were always present.
  • Page 81 Bit 3: 0 Short form result code. (V0) Long form result code. (V1) Bit 4: 0 Smart mode state. Dumb mode state. Bit 5: 0 Tone dial calls. (T) Pulse dial calls. (P) Bit 6: 0 Smart modem. (@I0) Dumb modem. (@I1) Bit 7: 0 Answer state.
  • Page 82 Disable Remote Digital Loopback Test. (140) Carrier Detect (CD) Timer Range: 0-255 Unit: 0.1sec Default: 10 Register S17 determines how long after CD off the auto retrain begin. Test Timer Range: 0-255 Unit: Second Default: 0 Register S18 determines the length of a diagnostic test before termination.
  • Page 83 Bit 5 DCD always ON. (&C0) DCD reflects real. (&C1) Bit 6,7 Disable special disconnect. (Y0) Enable long space disconnect. (Y1) Enable clear down disconnect. (Y2) Bits Mapped Bit 0,1 0 Speaker volume off. Speaker volume low. Speaker volume medium. Speaker volume high.
  • Page 84 Bit 6,7 0 Guard tone disable. (&G0) Guard tone 550 Hz. (&G1) Guard tone 1800 Hz. (&G2) Reserved. Bits Mapped Bit 0 Disable V25bis mode. (*C0) Bit 1 Enable V25bis asyncronous mode. (*C1) Enable V25bis synchronous mode. Bit 2 Enable V25bis HDLC mode. (*C3) Enable V25bis Bisynchronous mode.
  • Page 85 RTS to CTS Delay Interval Range: 0-255 Unit: 10 ms Default: 0 Register S26 determines how long the modem waits from an RTS OFF-to-ON transition detection to the time CTS is turned on. This register is valid only in synchronous mode with &R0 in effect. Bits Mapped Bit 0-2 0 Asynchronous mode.
  • Page 86 2400bps serial port speed. 4800bps serial port speed. 7200bps serial port speed. 9600bps serial port speed. 12000bps serial port speed. 14400bps serial port speed. 16800bps serial port speed. 19200bps serial port speed. 21600bps serial port speed. 24000bps serial port speed. 26400bps serial port speed.
  • Page 87 Bit 5-7 Reserved. Set Major SCP as Default Default: 1 1<=n<=4 (&Yn) Set Call Back Delay Timer Default: 10 Unit: sec 0<=n<=255 (@Dn) Bit 1 Disable 141 active RDL. Enable 141 active RDL. Bits Mapped Bit 0 Disable ring sound. (@B0) Enable ring sound.
  • Page 88 Service Class Bit 0-5 Reserved. Bit 6 MNP synchronous link. (@L0) MNP asynchronous link. (@L1) Bit 7 Disable second channel. Enable second channel. Bits Mapped Bit 0 V.32 TCM. V.32 QAM. Bit 1 Disable ignore DTR dump in handshaking. Enable ignore DTR dump in handshaking. Bit 2,3 RLSD on -43dBm, off -48dBm.
  • Page 89 Multi-phone system. (-M1) Bit 7 Disable disconnect reset. Enable disconnect reset. Set Auto Reliable Fallback Character Default: 0 0<=n<=127 Unit: ASCII (%An) Modem Port Link Speed Default: Range: 0-17 Auto (follow AT speed) Attempt connection at 1200/75 bps Attempt connection at 300 bps Attempt connection at 600 bps Attempt connection at 1200 bps Attempt connection at 2400 bps...
  • Page 90 Auto retrain with speed change.(%E2) Reserved. Bit 3,4 Neither direction. TX direction only. RX direction only. Both directions. Bit 5 Enable answer tone check. Disable answer tone check. Bit 6 Enable compromise equalizer. Disable compromise equalizer. Bit 7 Disable detect phase. Enable detect phase.
  • Page 91 Bits Mapped Bit 0,1 Set maximun MNP block to 64 characters. (\A0) Set maximum MNP block to 128 characters. (\A1) Set maximum MNP block to 192 characters. (\A2) maximum block characters.(\A3) Bit 2 Reserved. Bit 3,4 Set maximum dictionary size to 512 entries. Set maximum dictionary size to 1024 entries.
  • Page 92 Bits Mapped Bit 0-2 Break control type. (default: 5) 0<=n<=5 (\Kn) Bit 3 Stream link (interactive). Block link (file transfer). Bit 4 Disable fixed DCE speed. (%H0) Enable fixed DCE speed. (%H1) Bit 5-7 Normal Mode. (\N0) Direct mode. (\N1) MNP mode.
  • Page 93 Enable V42/MNP4 result code in DCE speed. (\V2) Enable V42bis/MNP5 result code in DTE speed. (\V3) Enable V42bis/MNP5 result code in DCEspeed. (\V4) Enable V42bis/MNP5 debug code in DTE speed. Enable V42bis/MNP5 debug code in DCE speed. Bit 7 Process flow control character. (\X0) Process flow control character and pass through to local or remote system.
  • Page 94 Leased-Line TX Level Range: 0-31 Default: 1 Unit: -dBm Bits Mapped Default: 0 Bit 0-7 Auto speed. Others the same as register S28. Bits Mapped Bits 0-3 8 RI reset timer. Bit 4 Disable V25 calling tone. Enable V25 calling tone. Bit 5 Disable T30 calling tone.
  • Page 95 Appendix B MODULAR JACK WIRING DIAGRAM To Other Telephone Equipment Line Modem JACK PLUG Fig B-1 RJ-11/JM8 Modular Jack Wiring Diagram Page: 95...
  • Page 96 Pin 8 CONNECTIONS Phone Line: Connect Pin 4 & Pin 5 2-Wire Leased-Line: Connect Pin 1 & Pin 2 4-Wire Leased-Line: Local Remote Pin 1 (TX) ----------------- Pin 7 (RX) Pin 2 (TX) ----------------- Pin 8 (RX) Pin 7 (RX) ----------------- Pin 1 (TX) Pin 8 (RX) ----------------- Pin 2 (TX) Fig B-2 RJ-45 Modular Jack Wiring Diagram Page: 96...

  • Page 97: Pin Assignment

    Appendix C RS-232 PIN ASSIGNMENT RS-232 V.24 Description Signal Direction 1 AA Protective Ground computer modem 2 BA Transmit Data computer modem 3 BB Receive Data computer modem 4 CA Request to Send computer modem 5 CB Clear to Send computer modem 6 CC...
  • Page 98 Appendix D FAX COMMAND REFERENCE Appendix D explains individual fax commands and is designed for value added users who want to write fax communication software. General users may skip this section. Fax Auto Answer +FAA= This command instructs the faxmodem to auto answer in data mode or in fax mode.
  • Page 99 Fax Capability Parameter +FDCC= Syntax：+FDCC=VR,RB,WD,LN,DF,EC,BF,ST This command determines the parameters required for fax commu- nication operation. The following is a list of definitions and values for each parameter. Vertical Resolution Normal mode, 98 lines per inch Fine mode, 196 lines per inch Bit Rate 2,400 bps, ITU-T V.27ter 4,800 bps, ITU-T V.27ter...
  • Page 100 Scan Time Per Line 0 ms, VR = normal 0 ms, VR = fine 5 ms, VR = normal 5 ms, VR = fine 10 ms, VR = normal 5 ms, VR = fine 10 ms, VR = normal 10 ms, VR = fine 20 ms, VR = normal 10 ms, VR = fine 20 ms, VR = normal...
  • Page 101 Begin Phase C Data Transmission +FDT This command prefix begins Phase C data transmission and forces a transition in the control software from command parsing to background processing. Note that you can only issue this command at the moment when negotiation is complete and upon entering Phase C.
  • Page 102 Request Model Identification +FMDL? This command instructs the faxmodem to send one or more lines of information text (not exceeding 2048 characters), used to identify the product. Manufacturer Identification +FMFR? This command instructs the faxmodem to send one or more lines of information text (not exceeding 2048 characters), used to identify the manufacturer.
  • Page 103 +FCFR Indicates confirmation to receive. The reception of an acceptable TCF training burst and valid DCS signal from the remote modem are received. +FCON Facsimile connection response. Indicates connection with a fax machine. Generated in response to an originate command or answer command. +FCSI Reports the called station's ID.

  • Page 104: Voice/Audio Commands

    Appendix E VOICE/AUDIO COMMANDS Voice/Audio Submodes Online Voice Command Mode Online Voice Command Mode is the default Voice submode entered when the #CLS=8 command is issued, and may also be entered from Voice Receive Mode or Voice Transmit Mode. Entry into Online Voice Command Mode is indicated to the DTE via the VCON message, after whice AT commands can be entered without aborting the telephone line connection.
  • Page 105 select (optional) silence detection including adjustment of the silence detection period and sensitivity level when ADPCM compression is selected. In this mode, and when the sampling rate is 7.2 kHz, the modem detects and reports DTMF, dial tone, and busy tone cadence as enabled by the #VTD command.
  • Page 106 AT Voice Command Summary Commnad Function Answering in Voice/Audio Mode. Dial command in Voice/Audio Mode. Hang up in Voice/Audio Mode. Reset from Voice/Audio Mode. #BDR Select baud rate. #CID Enable Caller ID detection and select reporting format. #CLS Select data, fax or voice/audio mode. #MDL? Identify manufacter.
  • Page 107 Result condes for Voice Operation VCON VCON is sent when the modem is configured for voice/audio (#CLS=8), or when after answering or originating a call, the modem enters the Online Voice Command Mode for the first time. Typically, this is immediately after an off-hook in answer mode, and after ringback ceases in originate mode.
  • Page 108 Appendix F Code in Digit and Word Form Response Code Definition Command line executed successfully CONNECT Connection at 300 bps or 1200 bps RING Incoming ring detected NO CARRIER Remote carrier lost or not detected ERROR Command line error CONNECT 1200 Connection at 1200 bps NO DIAL TONE Dial tone not detected...
  • Page 109 only CONNECT 300/V42bis Connection at300 bps in ECDC reliable mode CONNECT 600/V42bis Connection at 600 bps in ECDC reliable mode CONNECT 1200/V42bis Connection at 1200 bps in ECDC reliable mode CONNECT 2400/V42bis Connection at 2400 bps in ECDC reliable mode CONNECT 4800/V42bis Connection at 4800 bps in ECDC reliable mode CONNECT 9600/V42bis...

  • Page 110: Response Codes

    Response Set Selection Commands X0 through X4 combine to enable and disable various response codes. In general applications, select command X4 (default) to enable all response codes, so the most specific response code messages are displayed. If you plan to write your own software for special applications, select the response set you require by issuing the appropriate X command.
  • Page 111 Appendix G Prefix, Repeat, and Escape Commands Answer call immediately Attention, precedes all command lines except A/ and +++ Re-execute the last command in command buffer Escape characters, guard time before and after +++ Dial Commands and Dial Modifiers 0~9, A, B, C, D, *, # Swap dialing DTMF signal (S11=255) Wait for second dial tone...
  • Page 112 disconnect &R1 CTS always on in sync mode Enable long space disconnect &S0 DSR always on &S1 DSR according to RS-232 Enable clear down disconnect specification Warm reset with profile &T0 Terminate any test in progress (n=0,1,2,3,4) &T1 Local analog loopback test &An Power on auto dial (default &A99 &T3 Local digital loopback test...
  • Page 113 Set to MNP reliable mode only Disable multi-phone backup Enable multi-phone backup Set auto reliable mode (V42 to MNP) V.34 auto Set to V42 reliable mode only V.FC auto Disable DTE flow control V.32bis auto Bi-directional XON/XOFF flow V.34/V.FC/V.32bis only control V.FC/V.32bis Uni-directional...
  • Page 114 V25bis async Disable remote access Enable remote access V25bis bi-sync V25bis HDLC Set remote access password Page: 114...
  • Page 115 Appendix H ABBREVIATIONS Active Configuration Area ASYN Asynchronous Back Space Carrier Detect Calling Tone Carriage Return Clear To Send Data Carrier Detect Data Communications Equipment DL Simu LL Dialup Line Simulate Leased Line Data Set Ready Data Terminal Equipment DTMF Dial Tone Multi-Frequency Data Terminal Ready ECDC...
  • Page 116 RDLST Remote Digital Loopback with Selftest RLSD Received Line Signal Detector Ring Indicator Read Only Memory Request To Send Stored Configuration Profile Speaker Stored Telephone Number SYNC Synchronous Value-Added Reseller XOFF Flow Control Character 13H Flow Control Character 11H Page: 116...