U.S. ROBOTICS, INC. SPORTSTER 14,400 EXTERNAL Modem Type Data (synchronous/asynchronous)/Fax Maximum Data Rate 14.4Kbps Maximum Fax Rate 14.4Kbps Data Bus External Fax Class Class I Data Modulation Protocol Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis Fax Modulation Protocol ITU-T V.17, V.21CH2, V.27ter, V.29 Error Correction/Compression MNP5, V.42, V.42bis [Image] CONNECTIONS Purpose Location Purpose Location Line out CN3 DC power CN1 Line in CN4 Volume R1 RS-232/422 CN2 Power switch SW2 DTR SIGNAL Setting SW1/1 » DTR normal Off DTR forced high On RESULT CODES Setting SW1/2 » Verbal result codes enabled Off Numeric result codes enabled On RESULT CODES DISPLAY Setting SW1/3 » Enabled On Disabled Off ECHO DISPLAY Setting SW1/4 » Enabled Off Disabled On AUTO ANSWER Setting SW1/5 » Disabled On Enabled Off CARRIER DETECT Setting SW1/6 » CD normal Off CD forced high On SOFTWARE RESET Setting SW1/7 » Use stored profile Off Use factory default profile On AT COMMAND SET Setting SW1/8 Enabled On Disabled Off DIAGNOSTIC LED(S) LED Color Status Mode Condition AA Red On Answer Auto-answer enabled AA Red Off N/A Auto-answer disabled AA Red Blinking N/A Phone is ringing CD Red On N/A Carrier signal detected CD Red Off N/A Carrier signal not detected RD Red Blinking N/A Modem is receiving data or sending result codes RD Red Off N/A Modem is not receiving data SD Red Blinking N/A Modem is transmitting data SD Red Off N/A Modem is not transmitting data TR Red On N/A DTR signal is low TR Red Off N/A DTR signal is high CS Red On N/A CTS high CS Red Off N/A CTS normal ARQ/FAX Red On Data Error control connection established ARQ/FAX Red Blinking Data Error control data is being transmitted ARQ/FAX Red Blinking Fax Modem is connected in FAX mode Proprietary AT Command Set BIT-MAPPED REGISTER S13 Format AT [cmds] S13=n [cmds] Example: ATS13=139 Default: 0 Range: 0 - 159 Unit: Bit-mapped Description: Controls DTR reset, DTR dialing, Transmit buffer, backspace for delete, escape causes disconnect. Bit Value Function 0 » 0 DTR normal. 1 Reset on low DTR. 1 » 0 Non-error-correcting mode transmit buffer set to 1.5KB. 1 Non-error-correcting mode transmit buffer set to 128 bytes. 2 » 0 Use backspace key for delete disabled. 1 Use backspace key for delete enabled. 3 » 0 DTR dialing disabled. 1 DTR dialing enabled. 4 » 0 Reset dialing disabled. 1 Reset dialing enabled. 5 » 0 Not used. 6 » 0 Not used. 7 » 0 Escape code causes disconnect disabled. 1 Escape code causes disconnect enabled. BIT-MAPPED REGISTER S27 Format AT [cmds] S27=n [cmds] Example: ATS27=139 Default: 0 Range: 0 - 191 Unit: Bit-mapped Description: Controls V.21, V.32 encoding and modulation, V.42 answer tone and handshake, V.32 fallback, V.32bis, 9600 result codes. Bit Value Function 0 » 0 V.21 disabled. 1 V.21 enabled. 1 » 0 V.32 trellis coding disabled. 1 V.32 trellis coding enabled. 2 » 0 V.32 modulation enabled. 1 V.32 modulation disabled. 3 » 0 2100Hz answer tone enabled. 1 2100Hz answer tone disabled. 4 » 0 V.32 fallback disabled. 1 V.32 fallback enabled. 5 » 0 V.32bis enabled. 1 V.32bis disabled. 6 » 0 Not used. 7 » 0 Actual result codes displayed. 1 Force 9600 result codes. BREAK LENGTH Type: Register Format: AT [cmds] S21=n [cmds] Example: ATS21=20 Default: 10 Range: 0-255 Unit: 10 milliseconds Description: Sets the length of error correction mode breaks sent from DCE to DTE. BREAK TYPE Type: Configuration Format: AT [cmds] &Yn [cmds] Example: AT &Y0 Description: Configures action of break signal. Command Function &Y0 Break empties buffer. » &Y1 Break empties buffer and is sent immediately. &Y2 Break does not empty buffer and is sent immediately. CONNECTION SPEED UPPER LIMIT Type: Configuration Format: AT [cmds] &Nn [cmds] Example: AT &N1 DT555-1212 Description: Sets required connection speed if &U is set to 0. Otherwise, sets fastest allowed connection speed. Command Function » &N0 Variable. &N1 300bps &N2 1200bps &N3 2400bps &N4 4800bps &N5 7200bps &N6 9600bps &N7 12Kbps &N8 14.4Kbps ERROR CORRECTION MODE Type: Configuration Format: AT [cmds] &Mn [cmds] Example: AT &M1 %C1 Description: Selects active error correction protocols. Command Function &M0 Normal mode, error correction disabled. » &M4 Normal/ARQ. &M5 ARQ mode. ERROR CORRECTION Format AT [cmds] S15=n [cmds] Example: ATS15=139 Default: 0 Range: 0 - 255 Unit: Bit-mapped Description: Controls error correction. Bit Value Function 0 » 0 V.22 error correction enabled. 1 V.22 error correction disabled. 1 » 0 V.22bis error correction enabled. 1 V.22bis error correction disabled. 2 » 0 V.32/V.32bis/V.32terbo error correction enabled. 1 V.32/V.32bis/V.32terbo error correction disabled. 3 » 0 MNP handshake enabled. 1 MNP handshake disabled. 4 » 0 MNP 4 enabled. 1 MNP 4 disabled. 5 » 0 MNP 3 enabled. 1 MNP 3 disabled. 6 » 0 MNP incompatibility disabled. 1 MNP incompatibility enabled. 7 » 0 V.42 enabled. 1 V.42 disabled. EXTENDED RESULT CODES Type: Configuration Format: AT [cmds] &An [cmds] Example: AT &A1 %C1 Description: Selects extended result codes. Command Function &A0 Extended result codes disabled. &A1 ARQ result codes enabled. &A2 V.32 result code enabled. » &A3 Error control and compression result codes enabled. FLOW CONTROL CHARACTER Type: Register Format: AT [cmds] S22=n [cmds] Example: ATS22=20 Default: 17 Range: 0-127 Unit: ASCII Description: Sets the character used to represent XON. FLOW CONTROL CHARACTER Type: Register Format: AT [cmds] S23=n [cmds] Example: ATS23=20 Default: 19 Range: 0-127 Unit: ASCII Description: Sets the character used to represent XOFF. FLOW CONTROL PASSTHROUGH Type: Configuration Format: AT [cmds] &In [cmds] Example: AT &I0 &W Description: Allows modem to act on, then transmit XON/XOFF characters. Command Function » &I0 Software flow control disabled. &I1 XON/XOFF passthrough enabled. &I2 XON/XOFF passthrough disabled. FLOW CONTROL TYPE Type: Configuration Format: AT [cmds] &Hn [cmds] Example: AT &H0 A Description: Sets type of flow control used by modem. Command Function &H0 Flow control disabled. » &H1 CTS/RTS flow control enabled. &H2 XON/XOFF flow control enabled. &H3 CTS/RTS and XON/XOFF flow control enabled. HELP SCREENS Type: Immediate Format: AT $ Example: AT &$ Description: Shows command help screens for all commands beginning with the given prefix, or no prefix if none is given. Command Function $ Shows ATx help screen. &$ Shows AT&x help screen. INACTIVITY TIMER Type: Register Format: AT [cmds] S19=n [cmds] Example: ATS19=20 Default: 0 Range: 0-255 Unit: 1 minute Description: Sets the length of time that the modem does not receive information before it disconnects. LOCK SERIAL PORT Type: Configuration Format: AT [cmds] &Bn [cmds] Example: AT $ &B0 Description: Sets operation of serial port speed. Command Function &B0 Serial speed follows connect speed » &B1 Serial speed locked. &B2 Serial speed locked in ARQ mode only, REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Example: AT I1 O Description: Displays modem properties. Command Function I0 Reports product code. I1 Reports ROM checksum result. I2 Reports RAM checksum result. I3 Reports firmware version. I4 Reports current command settings. I5 Reports current NVRAM settings. I6 Reports current connection’s statistics. I7 Reports configuration. TONE DIALING TEST Format AT [cmds] S16=n [cmds] Example: ATS16=12 Default: 0 Range: 0 - 2 Unit: Bit-mapped Description: Tone dialing test Bit Value Function 0 0 Not used. 1 » 0 Tone dialing test disabled. 1 Tone dialing test enabled. V.32 HANDSHAKE TIME Type: Register Format: AT [cmds] S28=n [cmds] Example: ATS28=20 Default: 8 Range: 0-255 Unit: .1 second Description: Sets length of V.32 handshake.