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| XE3386L 12/00 Compact 33,600 BPS Data and Fax Modem Description Xecom's XE3386L combines high-speed data and Group III send/receive fax in a compact component. Xecom designed the XE3386L to be embedded by OEM designers. Xecom also offers pin compatible 2400 BPS 14,400 BPS and 56 KBPS alternatives to the XE3386L for applications with other date rate requirements. The XE3386L is not a modem chip but a complete modem including the telephone interface integrated into a compact module. It provides user transferable FCC Part 68 registration and can connect directly to the telephone line through an RJ11 jack. The modem connects to the host through a TTL level serial interface. The XE3386L also includes MNP2-4, MNP10 and V.42 error control and MNP5 and V.42bis data compression to provide an error free connection with the greatest possible data throughput rate. Features * * * * * * * * * * Small Size; 1.385 " x 1.36" x 0.575" Modem control with "AT" commands Class 1 Fax commands Data transfer up to 33,600 bps Send and receive fax to 14,400 bps MNP and V.42 Error Control MNP10 Error Control for Cellular Links MNP5 Data Compression to 67,200 bps V.42bis Data Compression to 115,200 bps Low power, single +5V supply Operating Power 800 mW (Typ.) Sleep Mode 200 mW (Typ.) * NVRAM for modem configuration storage Block Diagram VCC XE3386L Pin Configuration (Top View) RING TIP 1o 2o 3 4 5 6 7 8 9 10 11 o o o o o o o o o o o o o o o o o o o o 22 21 20 19 18 17 16 15 14 13 12 RTS RST GND VCC N/C /DCD /CTS /RI /DSR /DTR /V-D RST TXD RXD /DCD /CTS /DSR /DTR /RTS /V-D ROM Modem Controller NVRAM Analog Front End DAA Tip Ring N/C N/C SPK N/C N/C N/C N/C TXD RXD Spk Gnd XECOM (1) XE3386L XE3386L Mechanical Specifications INCHES Dim A B C D E F G H J Min 1.350 1.375 0.555 0.190 0.090 0.115 0.280 0.790 1.090 Max 1.370 1.395 0.585 0.210 0.110 0.135 0.300 0.810 1.110 METRIC(MM) Min 34.29 34.92 14.10 4.83 2.29 2.92 7.11 20.07 27.69 Max 34.80 35.43 14.86 5.33 2.79 3.43 7.62 20.57 28.19 A B Pins = 0.025 inches Square Denotes Pin 1 C D G H G F E J F ABSOLUTE MAXIMUM RATINGS* SUPPLY VOLTAGE - Vcc DC INPUT VOLTAGE STORAGE TEMPERATURE RANGE LEAD TEMPERATURE (Soldering, 2 sec per wave) OPERATING TEMPERATURE RANGE *Exceeding these values may result in permanent damage to the device. +6.5 Volts -0.6 Volts to +6.5 Volts -25 C TO +85 C 260 C 0 TO 70 C XECOM (2) XE3386L XE3386L Typical Connection Diagram VCC RJ11 3 4 C1 C2 FB1 FB2 AMP Ring Tip XE3386L XE1486 RST Gnd VCC /DCD /CTS /RI /DSR /DTR Host Serial Interface TXD /V-D RXD Recommended Parts Reference Designation FB1, FB2 C1, C2 Description Ferrite Beads Capacitors Recommended Part Number TDK CB30-1812 Sprague 30GAT47, 470 pfd, 3000 Volts Power Supply Characteristics(TA = Symbol Vcc Icc Parameter Supply Voltage Vcc Supply Current 5.0 160 40 0 - 70C, Vcc = 5v 5%) Typ Max 5.25 180 60 Units Volts mA mA Comments Active, On Line Sleep Mode XECOM (3) XE3386L XE3386L Pin Descriptions PIN 1 NAME Ring DESCRIPTION Ring provides half of the two-wire connection to the telephone network, RJ-11 Pin 4. A 1500 volt barrier isolates Ring from all other circuits. This isolation must be preserved throughout the system. The battery voltage on Ring may be positive or negative with respect to Tip. Tip provides half of the two-wire connection to the telephone network, RJ-11 Pin 3. A 1500 volt barrier isolates Tip from all other circuits. This isolation must be preserved throughout the system. The battery voltage on Tip may be positive or negative with respect to Ring. No Connection should be made to these pins. SPK provides the audio output to a speaker. Speaker output is controlled by the ATL and ATM commands. The input impedance to the speaker driver must be greater than 300 ohms. No Connection TXD provides serial data input from the host. A logic high represents a "Mark" and a low represents a "Space". RXD provides serial data output to the host. A logic high represents a "Mark" and a low represents a "Space". The Voice-Data output can be used to drive an external relay for switching between the modem and handset connected to the same telephone line. Data Terminal Ready is an active low input to the modem. The AT&D command sets the function of DTR. Data Set Ready is an active low output from the modem. Its operation is determined by the AT&S command. Ring Indicator is an active low output which marks the presence of a ring on the line. The XE3386L uses Clear to Send for hardware flow control. With hardware flow control active the modem raises \CTS to signal the host that the modem's transmit data buffer is nearly full. When the buffer empties, the modem reactivates CTS. Data Carrier Detect goes low to indicate receipt of a valid incoming carrier. The AT&C1 command enables the carrier detect function. No Connection VCC provides the +5 volt power required by the modem. Ground provides the common reference for the XE3386L. This active high input causes a hardware reset in the XE3386L. The reset pulse must be held high for at least 10 milliseconds to correctly reset the modem. The modem uses Request to Send for hardware flow control. The modem stops sending data to the host when the hosts raises /RTS. The modem resumes transferring data to the host when the host activates /RTS 2 Tip 3, 4 5 Not Used SPK 6-9 10 11 12 13 14 15 16 N/C TXD RXD /V-D /DTR /DSR /RI /CTS 17 18 19 20 21 22 /DCD N/C VCC GND RST RTS XECOM (4) XE3386L XE3386L Electrical Specifications (TA = Parameter DTMF Level Modem Transmit Level Pulse Dialing Rate Pulse Dialing Make/Break Billing Delay Interval Phone Line Impedance Match Ring Detect Sensitivity Telephone Loop Current Input High Voltage (TXD, RTS, DTR) Input Low Voltage (TXD, RTS, DTR) Output High Voltage (DCD, DSR, CTS, RXD, RI, OH) Output Low Voltage 2.4 38 20 2.0 2.0 -12 0 - 70C, Vcc = 5v 5%) Min Typ -2.2 -10.5 Max 0 -9.0 10 Unit dBm dBm pps % sec. Comments 3 second average 600 ohm line 39/61 USA 600 150 100 ohms VRMS milliamps Volts 0.8 Volts Volts RXD -100 microamps; DCD, RI, OH - 1.6 milliamps 0.4 Volts RXD - 1.6 milliamps; Type B Ringer Off-hook XECOM (5) XE3386L XE3386L AT Commands Modes of Operation The XE3386L has three operational modes; Command, Fax and Data. Data Mode: The XE3386L enters data mode after it establishes a connection and issues a "CONNECT" result code. In the Data Mode the modem sends all signals on Transmit Data to the remote modem and puts data from the remote modem onto Received Data for the host equipment. When the modem exits data mode, it issues a "NO CARRIER" result code. Command Mode: The XE3386L enters command mode on power-up, reset, loss of the connection, or receipt of the escape sequence. In command mode the modem accepts commands from the host on Transmit Data. Appropriate result codes are returned on Received Data. Fax Mode: The XE3386L enters Class 1 fax mode on receipt of AT+FCLASS=1. In fax mode commands and responses are issued at 19,200 bits per second; the character format is 8 bits no parity. The modem accepts fax commands only in fax mode. The A/, ATO, AT&T and escape commands are not valid in fax mode. Command Line Format Commands sent to the modem follow a strict format. Each command line begins with the prefix AT. The modem stores the command line in the command buffer and executes it upon receipt of a carriage return. Until executed, a backspace edits the command line. Command Prefix - The "A" and "T" command prefix may be both upper or both lower case but cannot be of different cases. The prefix identifies the speed and parity of the host. The modem determines speed by measuring the width of the incoming bits and parity by comparing the parity bits of the "A" and "T." The XE3386L normally sends result codes at the speed and parity determined by the prefix. Command Line - One command line may include multiple commands. The modem executes commands in the sequence they appear. Spaces inserted into the command line do not fill space in the command buffer. A carriage return terminates the command line and causes the commands to be executed. Register S3 allows the user to select a character other than a carriage return to terminate the command line. Command Buffer - The command buffer accepts only 40 characters, including the AT prefix. If the command buffer overflows, the modem issues an "ERROR" result code and does not execute the commands. Command Line Editing - The backspace edits the command line. Hitting the backspace key, or Control and H simultaneously on some systems, erases the previous character in the command line. All characters can be erased except for the "A" and "T." Register S5 allows the user to select a character other than a backspace to edit the command line. Re-Execute Last Command - The A/ command causes the modem to re-execute the last command line. This is the only command that does not require the "AT" prefix. Omitted Parameters - Most commands include a parameter which determines the command function. If the command omits the parameter, he modem assumes the parameter is a zero. Escape Characters - A three character escape sequence switches the modem from data mode to command mode while remaining on line. The escape character, set by Register S2, must be entered 3 times in succession to execute the escape. The default escape sequence is "+++." Result Codes - The modem issues a result code after each action. The modem sends result codes as full words, numeric codes or the user may disable the result codes. Each result code ends with a carriage return when the user chooses numeric result. The modem terminates full word result codes with a Line Feed and Carriage Return. XECOM (6) XE3386L XE3386L AT Command List Mn - Speaker Activity - ATMn determines when the List of Commands An asterisk indicates the default setting of the command for the modem's audio output is active. n=0 Speaker off XE3386L. n=1 Speaker on until carrier received* n=2 Speaker remains on A - Answer Command - ATA forces the modem to n=3 Speaker off during dialing, on until carrier immediately go off-hook and begin transmitting the answer tone sequence. On - On Line - ATOn switches the modem from the command mode to the data mode. Bn - Select Communications Standard - ATBn selects the n=0 Return On Line with no retrain* modulation scheme used for connections below 2400 bits per n=1 Initiate retrain returning On Line. second n=0 Selects CCITT standards Qn - Responses - ATQn determines if the modem will issue n=1 Selects Bell standards* responses. n=0 Send responses* D - Dial Command - Below are the characters accepted in a n=1 No Responses dialing command. 0-9, #, * = Dialing Digits Sr? - Interrogate Register - ATSr? requests the current value L = Re-dial last number in register Sr. P = Pulse dial T = Tone dial Sr=n - Set Register Value - ATsr=n sets the value of register S=n = Dial stored number Sr to n. W = Wait for dial tone ^ = Toggles state of calling tone Vn - Result Codes - ATVn sets the modem to issue Numeric , = Pause for the duration of S8 or Full Word result codes . @ = Wait for silence n=0 Numeric Result Codes ! = Switch hook flash n=1 English Word Result Codes* ; = Return to the command state En - Command Echo - ATEn determines whether commands will be echoed back to the host. n=0 Do not echo commands n=1 Enable command echo* Hn - Switch Hook Control - ATHn opens and closes the modem's hook switch. n=0 Switch hook relay opens n=1 The switch hook relay closes In - Modem Identification - ATIn identifies the modem Ln - Speaker Volume - ATLn sets the amplitude of the modem's audio output. n=0 Lowest speaker volume n=1 Low speaker volume* n=2 Moderate speaker volume n=3 High speaker volume Wn - Connect Message Rate - ATWn determines whether the data rate reported in the Connect response is the host data rate, the link data rate or whether both are provide along with the error control and data compression protocols negotiated. n=0 Send "CONNECT" at DTE Rate* n=1 Report line speed, DTE speed and Link protocol n=2 "CONNECT" Reports Link speed Xn - Result Code Set - ATXn selects which set of result codes the modem may send. n=0 Result codes 0 to 4 n=1 Result codes 0 to 5 and 10 n=2 Result codes 0 to 6 and 10 n=3 Result codes 0 to 5, 7 and 10 n=4 Full Result codes* Zn - Reset - ATZn executes a soft reset to the modem and resets the modem configuration. n=0 Reset to user profile 0* n=1 reset to user profile 1 XECOM (7) XE3386L XE3386L AT Command List (continued) &Cn - DCD Operation - AT&Cn determines the operation of &Tn - Test Modes - AT&T selects modem test mode. n=0 Exit test mode the DCD output. n=1 Local analog loopback n=0 DCD is forced active. n=1 DCD indicates a valid carrier* &Vn - View Configuration Profiles - AT&V permits the user to check on the modems current configuration or conditions of &Dn - DTR - AT&Dn determines how the modem will the last call respond to changes to DTR. n=0 View active profile & user profiles * n=0 DTR is ignored by the modem. n=1 View statistics on last call n=1 Enter command mode if DTR revoked. n=2 Disconnect if DTR revoked.* &Wn - Store Active Profile - AT&Wn stores the current n=3 Soft reset when DTR revoked modem configuration in NVRAM. n=0 Store active profile as profile 0* &Fn - Return to Factory Defaults - AT&Fn returns the n=1 Store active profile as profile 1 modem configuration to one of two factory configurations. n=0 Restore configuration 0* &Yn - Recall Stored Profile - AT&Yn sets the stored modem n=1 Restore configuration 1 configuration to be used after a hard reset. n=0 Recall profile 0 on power-up* &Gn - Guard Tone - AT&Gn controls the guard tone n=1 Recall profile 1 on power-up produced by the modem n=0 Guard Tone Disabled* &Zn=x - Store telephone number "x" in memory location n=1 Guard Tone Disabled "n" n=2 1800 Hz Guard Tone &Kn - Flow Control - AT&Kn selects the flow control method used by the modem. n=0 Disabled n=3 RTS/CTS n=4 XON/XOFF n=5 Transparent XON/XOFF &Pn - Dial Pulse Make/Break Ratio - AT&Pn determines the specific pulse dialing parameters used by the modem. n=0 39/61% @ 10 pps* n=1 33/67% @ 10 pps n=2 39/61% @ 20 pps n=3 33/67% @ 20 pps &Qn - Line Connection - AT&Qn determines if error control or data buffering are active on the link. n=0 Direct mode (no data buffering)* n=5 Use Error Correction n=6 Normal Mode (Speed buffering) &Sn - DSR Operation - AT&Sn sets the operation of the DSR signal. n=0 DSR always active* n=1 DSR in accordance with V.25. %En - Line Quality Monitor/Auto Retrain - AT%En determines if the modem will monitor line quality during a connection and initiate a retrain if quality drops below acceptable levels. n=0 Disabled n=1 Enabled n=2 Line quality, fallback, fall forward %L - Read Received Signal Level - AT%L permits the user to read the magnitude of the receive signal in dBm. %Q - Read Line Signal Quality - AT%Q permits the user to read the EQM value of the received signal. \Bn - Transmit Break - AT\Bn selects the duration of the break signal sent. Break = n x 100 msec. \Gn - Modem Port Flow Control n=0 No Modem Port Flow Control n=1 XON/XOFF Port Flow Control XECOM (8) XE3386L XE3386L AT Command List (continued) \Kn - Break control - AT\Kn determines how the modem will handle a break signal received from the host. Break received from host in data transfer mode. n=0 Enter on-line command mode; do not transmit break n=1 Purge buffers, immediately transmit break n=2 Same as n=0 n=3 Immediately send break n=4 Same as n=0 n=5 Send break in sequence with data * Break received from the host during the on-line command mode. n=0 Purge buffers, immediately transmit break n=1 Same as n=0 n=2 Immediately send break n=3 Same as n=2 n=4 Send break in sequence with data n=5 same as n=4 * Break received from modem during a non-error corrected link n=0 Purge buffers, Immediately send break to host n=1 same as n=0 n=2 Immediately send break to the host n=3 Same as n=2 n=4 Send break in sequence with data. n=5 Same as n=2* \Nn - Error Control Selection - AT\Nn determines how the modem will handle error control negotiations. n=0 Normal mode, no error correction n=1 Direct mode, no buffering, no error correction n=2 Reliable mode, error correction required n=3 V.42 Auto-reliable mode, accept either an error controlled or non-error controlled link* n=4 V.42 Reliable mode, LAPM required n=5 MNP required /V XECOM (9) XE3386L XE3386L S-Registers S0 Answer on nth Ring: S0 sets the modem to automatically answer on the nth ring. Setting S0 to 0 disables automatic answer. Range: 0 to 255 Units Rings Default 0 S1 Ring Count: S1 is a read-only register showing the number of rings detected. If a ring is not detected within 8 seconds, S1 is reset to zero. Range: 0 to 255 Units Rings Default 0 S2 Escape Character: S2 sets the ASCII escape character. Values of 0-127 select valid ASCII escape characters; values from 128 to 255 disable the escape sequence. Range: 0 to 255 Units ASCII Character Default 43 (+) S3 Carriage Return Character: S3 determines the ASCII character to serve as a carriage return to terminate commands and modem responses. Range: 0 to 127 Units ASCII Character Default 13 (Carriage Return) S4 Line Feed Character: S4 sets the ASCII character to act as a line feed character in modem responses. Range: 0 to 127 Units ASCII Character Default 10 (Line Feed) S5 Back Space Character: S5 defines the ASCII character used as a backspace to edit the command line. Range: 0 to 32 Units ASCII Character Default 8 (Back Space) S6 Dial Tone Wait Time: S6 determines how long the modem waits for dial tone before dialing begins. The Dial Tone Wait Time cannot be set to less than two seconds. Range: 2 to 255 Units Seconds Default 2 S7 Wait for Carrier after Dialing: S7 determines how long the modem waits for a valid carrier signal after dialing. Range: 1 to 255 Units Seconds Default 50 S8 Comma Pause Time: S8 defines the duration of the pause set by a comma in the dialing string. The pause is generally used when waiting for a second dial tone. Range: 1 to 255 Units Seconds Default 50 S9 Reserved S10 Carrier Off Disconnect Delay: S10 selects how long carrier must be lost before the modem disconnects. Range: 1 to 255 Units 0.1 Seconds Default 14 S11 Tone Dialing Speed: S10 sets the duration and spacing of the dialing tones. S11 does not affect pulse dialing. Range: 50 to 255 Units 1 Millisecond Default 95 S12 Escape Code Guard Timer: S12 sets the guard timer for the escape sequence. If characters are received within the guard time, the modem aborts the escape attempt and remains in data mode. Range: 0 to 255 Units 0.02 Seconds Default 50 S14 General Bit-Mapped Options: S14 reflects the state of several "AT" commands. Bit 0,4,6 Not Used Bit 1 0 = Echo Disabled (ATE0) 1 = Echo Active (ATE1) Bit 2 0 = Send Result Codes (ATQ0) 1 = No Result Codes (ATQ1) Bit 3 0 = Numeric Result Codes (ATV0) 1 = Full Word Result Codes (ATV1) Bit 5 0 = Tone Dialing Selected (T) 1 = Pulse Dialing Selected (P) Bit 7 0 = Answer 1 = Originate XECOM (10) XE3386L XE3386L S-Registers (continued) S16 Test Status: S16 shows the modem test status. Bit 0 0 = No Local Analog Loopback 1 = Local ALB Active Bit 2 - 7Not Used S21 General Bit-Mapped Options: S21 reflects the state of several "AT" commands. Bit 0-2, 7 Not Used Bit 3,4 0 = DTR ignored (&D0) 1 = Enter command mode on DTR off (&D1) 2 = Disconnect on DTR off (&D2) 3 = Reset on DTR off (&D3) Bit 5 0 = DCD always active (&C0) 1 = DCD on with Carrier (&C1) Bit 6 0 = DSR always active (&S0) 1= DSR on when modem ready (&S1) S22 General Bit-Mapped Options: S22 reflects the state of several "AT" commands. Bit 0-1 0 = Low speaker volume (ATL0) 1 = Low speaker volume (ATL1) 2 = Moderate speaker volume (ATL2) 3 = High speaker volume (ATL3) Bit 2-3 0 = Speaker off (ATM0) 1 = Speaker off with carrier (ATM1) 2 = Speaker always on (ATM2) 3 = Speaker on during handshake (ATM3) Bit 4-6 0 = Basic Result codes (ATX0) 4 = Connect speed result codes (ATX1) 5 = No Blind Dial (ATX2) 6 = Busy Detection (ATX3) 7 = Full result codes (ATX4) Bit 7 Not Used S23 General Bit-Mapped Options: S23 reflects the state of several "AT" commands. Bit 0-5 Not Used Bit 6-7 0 = No Guard Tone (AT&G0) 1 = No Guard Tone (AT&G1) 2 = 1800 Hz guard tone (AT&G2) 3 = Not Used S24 Sleep Mode Timer: S24 sets the length of time in seconds that the modem must be idle before entering the low power, sleep mode. When S24 is set to 0, sleep mode is disabled. Range: 0 to 255 Units: seconds Default: 0 S27 General Bit-Mapped Options: S27 reflects the state of several "AT" commands. Bit 013 0 0 0 = Normal Mode (AT&Q0) 1 0 1 = Error control enabled (AT&Q5) 0 1 1 = Direct Mode (AT&Q6) Bit 2, 4-5, 7 Not Used Bit 6 0 = CCITT Protocols (ATB0) 1 = Bell Protocols (ATB1) S28 Pulse Dialing Bit-Mapped Options: S28 stores the modem's pulse dialing configuration. Bit 0-2, 5-7 Not Used Bit 3-4 0 = Make/Break ratio 39%/61%; 10 pulses per second (AT&P0) 1 = Make/Break ratio 33%/67%; 10 pulses per second (AT&P1) 2 = Make/Break ratio 39%/61%; 20 pulses per second (AT&P2) 3 = Make/Break ratio 33%/67%; 20 pulses per second (AT&P3) S29 Hook Flash Timer: S29 determines the length for time the modem closes its off-hook relay on receipt of the "!" dial modifier to simulate a switch hook flash. Range: 0 to 255 Units 10 milliseconds Default 70 S30 Disconnect on Inactivity Timer: S30 sets the period the modem is idle before it disconnects. A 0 disables the inactivity timer. Range: 0 to 255 Units 10 Seconds Default 0 S31 General Bit-Mapped Options: S31 stores the status of various AT commands. Bit 0 0 = No single-line Connect messages (AT\V0) 1 = Use single-line connect messages (AT\V1) Bit 1, 4-7 Not Used Bit 2-3 0 = Report host speed (ATW0) 1 = Report all parameters (ATW1) 2 = Report modem speed only (ATW2) XECOM (11) XE3386L XE3386L S-Registers (continued) S36 LAPM Failure: S36 instructs the modem what to do if the error control negotiations fail. Bit 0-2 0 = Modem Disconnects 1 = Establish Direct Connection 3 = Establish normal Connection 4 = Disconnect if MNP handshake fails 5 = Establish Direct Connection if MNP handshake fails. 7 = Establish Normal Connection if MNP handshake fails. Bit 3-7 Not Used S38 Forced Disconnect Timer: S38 sets the delay between receipt of the command to disconnect and the actual opening of the switch hook. If S38 is set to 255 the modem disconnects only after its buffers are empty. Range: 0 to 255 Units 1 Second Default 20 S39 Flow Control Bit-Mapped Options: S39 shows the modem's flow control status, AT&K. Bit 0-2 0 = Flow Control Disabled 3 = Hardware Flow Control, RTS/CTS 4 = In-Band Flow Control XON/XOFF 5 = Transparent In-Band Flow Control Bit 3-7 Not use S41 General Bit-Mapped Options: S41 stores the condition of various "AT" commands. Bit 0-1 0 = No Data Compression (AT%C0) 1 = MNP5 Data Compression (AT&C1) 2 = V.42bis Data Compression (AT&C2) 3 = Either MNP5 or V.42bis (AT&C3) Bit 2, 6 0 0 = No Fallback/Forward (AT%E0) 1 0 = Retrain Enabled (AT%E1) 0 0 = Fallback/Forward Enabled (AT%E2) Bit 3-5, 7 Not Used S46 Data Compression Control: S46 selects whether or not the modem will support data compression. S46=136 No data compression S46=138 Data Compression selected Default 138 S48 V.42 Negotiations: S48 determines the modem's V.42 negotiation process. S48=0 Proceed with LAPM S48=7 Negotiate per V.42* S48=128 Assume LAPM failure S86 Call Failure Code: S86 shows why the last "NO CARRIER response was issued. S86=0 Normal Disconnect S86=3 Call Waiting caused Disconnect S40 MNP Bit-Mapped Options: S40 shows the status of the S86=4 Loss of Carrier modem's MNP commands, . S86=5 V.42 Negotiation Failure Bit 0-1 0 = No LAPM/MNP10 conversion (AT-K0) S86=6 No response to feature Negotiation 1 = Enable LAPM/MNP10 conversion (AT-K1) S86=7 Other modem is Synchronous modem 2 = Enable LAPM to MNP10 conversion except S86=8 No common framing technique for LAPM answer mode (AT-K1) S86=9 Modem Handshake Failure Bit 2 Not Used S86=10 Bad response to Feature Negotiation Bit 3-5 0 = AT\K0 break handling selected S86=12 Disconnect Initiated by remote modem 1 = AT\K1 break handling selected S86=13 No response after 10 retries 2 = AT\K2 break handling selected S86=14 Protocol Violation 3 = AT\K3 break handling selected S86=15 Lost DTR 4 = AT\K4 break handling selected S86=16 Received GSTN cleardown 5 = AT\K5 break handling selected S86=17 Inactivity timeout Bit 6-7 Not Used S86=18 Speed not supported S86=20 Key abort disconnect S86=22 No connection established S86=23 Disconnect after 3 retrains S86=24 Call Waiting tone detected XECOM (12) XE3386L XE3386L S-Registers (continued) S95 Extended Result Codes: S95 permits the user to customize the extended result codes. Bit 0 Connect result code shows link speed Bit 1 Add /ARQ to connect response Bit 2 Add /VFC to Carrier response Bit 3 Enable Protocol response Bit 4 Not Used Bit 5 Enable Compression Result Code Bit 6 Not used Bit 7 Not Used XE3386L Class 1 Fax Commands AT+FCLASS? - Service Class Indication 0 = Configured as a data modem 1 = Configured for Service Class 1. AT+FCLASS=? - Service Class Capability 0 = Configured as a data modem 1 = Configured for Service Class 1. AT+FCLASS=n - Set Service Class 0 = Configured as a data modem 1 = Configured for Service Class 1. AT+FAE=n - Data/Fax Auto Answer 0 = Answer as a fax modem only 1 = Either a fax or data modem AT+FF - Enhanced Flow Control AT+FRH |
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