3COM CORPORATION US ROBOTICS COURIER INTERNAL I-MODEM Card Type Modem (synchronous/asynchronous) Chip Set Unidentified Maximum Modem Rate 56Kbps ISDN Transfer rate 64Kbps Maximum Fax Rate 14.4Kbps Data Modulation Protocol Bell 103/212A ITU-T x2, V.34, V.FC, V.32, V.32terbo, V.32bis ISDN Protocol V.120, V.110 Fax Modulation Protocol Unidentified Error Correction/Compression MNP5, V.42, V.42bis, HST Fax Class Class I & II Data Bus 8-bit ISA Card Size Full-length, full-height card [Image] CONNECTIONS Function Label Function Label RJ-45 connector CN1 RJ-45 connector CN2 USER CONFIGURABLE SETTINGS Function Label Position Load &F0 setting upon reset SW1/1 Off Load NVRAM settings upon reset SW1/1 On Modem acts on AT commands SW1/2 On Modem ignores AT commands SW1/2 Off Factory configured - do not alter SW1/3 Unidentified Factory configured - do not alter SW1/4 Unidentified SERIAL PORT ADDRESS Setting JP1 JP2 JP3 COM1 (3F8h) Open Open Open COM2 (2F8h) Closed Open Open COM3 (3E8h) Open Closed Open COM4 (2E8h) Closed Closed Open Plug & Play Open Open Closed INTERRUPT IRQ JP4 JP5 JP6 JP7 JP8 2 Open Open Open Open Closed 3 Open Open Open Closed Open 4 Open Open Closed Open Open 5 Open Closed Open Open Open 7 Closed Open Open Open Open SUPPORTED COMMAND SET Basic AT Commands AT, ‘+++’, A/ A, B, C, E, F, O, V &C, &G, &Z S Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S26 Note: See MHI Help File for full command documentation. Proprietary AT Command Set ADDITIONAL RESULT CODES Type: Configuration Format: AT [cmds] &An [cmds] Description: Controls the display of the additional result codes Command Function &A0 Do not display ARQ result codes &A1 Display ARQ result codes &A2 Display ARQ result codes, HST, V.32, V.FC, V.34 or Digital modulation indicator &A3 Display ARQ result codes and error control indicator LAPM, HST, MNP, SYNC, V.120, or NONE BREAK HANDLING Type: Configuration Format: AT [cmds] &Yn [cmds] Description: Controls the break handling Command Function &Y0 Destructive, don’t send break &Y1 Destructive, expedited break sent &Y2 Nondestructive, expedited break sent &Y3 Non destructive un-expedited break sent CONNECTION RATE Type: Configuration Format: AT [cmds] &Nn [cmds] Description: Controls the connection rate Command Function &N0 Variable rate &N1 300bps &N2 1200bps &N3 2400bps &N4 4800bps &N5 7200bps &N6 9600bps &N7 12Kbps &N8 14.4Kbps &N9 16.8Kbps &N10 19.2Kbps &N11 21.6Kbps &N12 24Kbps &N13 26.4Kbps &N14 28.8Kbps &N15 31.2Kbps &N16 33.6Kbps DATA COMPRESSION Type: Configuration Format: AT [cmds] &Kn [cmds] Description: Controls the data compression Command Function &K0 Data compression disabled &K1 Use auto enable/disable data compression &K2 Data compression always enabled &K3 Selective data compression DATA SET READY (DSR) Type: Configuration Format: AT [cmds] &Sn [cmds] Description: Selects DSR options Command Function &S0 DSR forced high &S1 DSR high only while modem is handshaking or connected &S2 Pulsed DSR sent with CTS following CD when the carrier is lost &S3 Pulsed DSR sent following CD when the carrier is lost &S4 Send the computer a DSR signal at the same time as the CD &S5 Send DSR normally, and follow CTS with CD DATA TERMINAL READY (DTR) Type: Configuration Format: AT [cmds] &Dn [cmds] Description: Selects modem response to DTR Note: The action each variant of &D causes depends on the setting of &Q Command Function &D0 Modem does not respond to DTR &D1 Modem goes to command mode after DTR goes is off &D2 Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled. DIAL Type: Immediate Format: AT [cmds] D<#> [cmds] Description: Dials telephone number according to any modifiers included in the string Note: Any combination of modifiers can be used to produce the desired dial functions in sequence. Command Function DL Re-dial last number DP Pulse dialing enabled DR Answer mode enabled; originate mode disabled following handshake initiation. DS=n Dial stored telephone number n DT Tone dialing enabled/Pulse dialing disabled DW Dialing resumed following dial tone detection D, Dialing paused for amount of time specified in S8 register D"WXY" Optional method of denoting telephone numbers. Letters enclosed in quotes are interpreted as numbers according to the system found on a telephone keypad. D@ Wait for Quite Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string. D$ Wait for prompt tone detection function enabled. Waits for prompt tone for amount of time specified by the S7 command. D; Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command. D/ Pause for 125 milliseconds ERROR CONTROL Type: Configuration Format: AT [cmds] &Mn [cmds] Description: Selects the error control protocol Command Mode &M0 Normal mode, no error control &M1 On-line synchronous mode, no error control &M4 Normal/ARQ mode, &M5 ARQ asynchronous mode &M6 V.25bis synchronous mode. &M7 V.25bis synchronous mode using HDLC link protocol FACTORY DEFAULT PROFILE Type: Configuration Format: AT [cmds] &F [cmds] Description: Sets values in active profile to values found in the default profile Command Function &F0 Load No Flow Control template settings &F1 Load Hardware Flow Control template settings &F2 Load Software Flow Control template settings HARDWARE RESET Type: Immediate Format: AT [cmds] Z! [cmds] Description: Performs a hardware reset HELP Type: Configuration Format: AT [cmds] $ [cmds] Description: Display the help commands for the selected command sets Command Function #$ Display the help pannels for the octothorpe (#) command set *$ Displays the help pannels for the * command set HOOK CONTROL Type: Immediate Format: AT [cmds] Hn [cmds] Description: Selects whether the modem is on-hook or off-hook Command Function H0 Modem commanded to go on-hook (hang-up) LINE SELECTION Type: Configuration Format: AT [cmds] &Ln [cmds] Description: Selects the phone line type Command Function &L0 Switched line (PSTN/Dial-up) MODEM CLOCK Type: Configuration Format: AT [cmds] Kn [cmds] Description: Controls the modem clock Command Function K0 If on-line, display current call duration; if off-line, display the last call’s duration K1 Display the actual time (set clock using ATI3=HH:MM:SS K1) RECEIVE DATA FLOW CONTROL Type: Configuration Format: AT [cmds] &In [cmds] Description: Controls the receive data flow control Command Jack Type &I0 Disables XON/XOFF flow control &I1 Modem acts on typed XON/XOFF commands, Ctrl -S, or Ctrl -Q and passes them to remote device &I2 Modem acts on typed XON/XOFF commands but removes them from data stream &I3 Hewlett Packard host mode &I4 Hewlett Packard terminal mode &I5 Enable flow control on the phone link when the connection is not under error control REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested Command Function I0 Reports 4 digit product code I1 Reports results of ROM checksum I2 Reports results of RAM test I3 Reports the product name I4 Reports the current modem settings I5 Reports the settings stored in NVRAM I6 Reports statistics for the last call I7 Reports product configuration I10 Reports dial security account status information I11 Displays high speed connection report I12 Display the ISDN settings RESULT CODES Type: Configuration Format: AT [cmds] Qn [cmds] Description: Enables modem to send result codes to the DTE Command Function Q0 Result code sending enabled Q1 Result code sending disabled Q2 Suppress result codes when answering RTS/CTS Type: Configuration Format: AT [cmds] &Rn [cmds] Description: Selects RTS/CTS options Command Function &R0 CTS follows RTS in data mode; RTS is ignored in command mode. &R1 CTS forced high, RTS is ignored. &R2 Enable hardware flow control of received data SELECT CALL PROGRESS RESULT CODES Type: Configuration Format: AT [cmds] Xn [cmds] Description: Enables selection of tone detection and associated result code format options Command Function X0 Busy and dial tone detection disabled; result codes 0 - 4 enabled. X1 Busy and dial tone detection disabled; result codes 0 - 5 & 10 enabled. X2 Busy tone detection disabled, dial tone detection enabled; result codes 0 - 6 & 10 enabled. X3 Busy tone detection enabled, dial tone detection disabled; result codes 0 - 5, 7 & 10 enabled. X4 Busy and dial tone detection enabled; result codes 0 - 7 & 10 enabled. X5 Busy tone detection enabled, dial tone detection disabled, all result codes enabled X6 All result codes enabled X7 Voice detection disabled, all result codes enabled SERIAL PORT RATE Type: Configuration Format: AT [cmds] &Bn [cmds] Description: Controls the serial port rate Command Function &B0 Variable serial port rate &B1 Fixed serial port rate &B2 In answer mode use fixed rate for ARQ calls and variable rate for non ARQ calls. TEST MODES Type: Immediate Format: AT [cmds] &Tn Description: Selects test options Command Function &T0 End current test &T3 Begin local digital loopback &T4 Grant remote digital loopback request &T5 Deny remote digital loopback request &T6 Request remote digital loopback &T7 Request remote digital loopback and self-test TRANSMIT DATA FLOW CONTROL Type: Configuration Format: AT [cmds] &Hn [cmds] Description: Controls the transmit data flow Command Function &H0 Flow control disabled &H1 Hardware flow control enabled &H2 Software flow control enabled &H3 Both hardware and software flow control enabled WRITE CURRENT SETTINGS Type: Immediate Format: AT [cmds] &W [cmds] Description: Writes the current settings to NVRAM Extended AT Commands ASSIGN PASSWORD Type: Immediate Format: AT [cmds] %V=PWn [cmds] Description: Assign the password in account n in security account CALL TYPE Type: Configuration Format: AT [cmds] *Vn [cmds] Description: Sets the call type Bit Unit Function *V1 0 3.1 kHz audio (modem/fax) 1 Speech *V2 0 Autodetect 1 V.120 rate adaption only 2 V.110 rate adaption only 3 Modem or fax only 4 Clear-channel synchronous 5 Asychronous to synchronous PPP conversion CENTRAL OFFICE PROTOCOL Type: Configuration Format: AT [cmds] *Wn [cmds] Description: Sets the protocol used by the telephone company’s central office Command Function *W0 AT&T 5ESS custom *W1 Northern Telecom DMS-100 *W2 National ISDN-1 *W3 National ISDN-2 CLOCK SPEED Type: Configuration Format: AT [cmds] %Nn [cmds] Description: Sets clock speed for synchronous mode Command Function %N2 1200bps %N3 2400bps %N4 4800bps %N5 7200bps %N6 9600bps %N7 12000bps %N8 14400bps %N9 16800bps %N10 19200bps DIALING MODE Type: Immediate Format: AT [cmds] *On [cmds] Description: Sets the dialing mode Command Function *O0 En-bloc dialing *O1 Overlap dialing DIRECTORY NUMBER Type: Configuration Format: AT [cmds] *P [cmds] Description: Sets the Directory number assigned by the phone company Command Function *P1 The DN for Voice B-channel *P2 The DN for Data B-channel ERASE SECURITY SETTINGS Type: Configuration Format: AT [cmds] %En [cmds] Description: Erases selected security settings Command Function %E1 Erase local access password %E2 Erase autopass password %E3 Erase passwords in accounts 0-9 %E4 Erase phone numbers in accounts 0-9 %E5 Disable account, dialback, and new number fields in accouns 0-9 LOCAL ACCESS PASSWORD Type: Configuration Format: AT [cmds] %Ln [cmds] Description: Set local access password PASSWORD SECURITY Type: Immediate Format: AT [cmds] %P [cmds] Description: Disable password security REMOTE CONFIGURATION Type: Configuration Format: AT [cmds] %Cn [cmds] Description: Controls the remote configuration Command Function %C0 Defer configuration changes until the call is ended %C1 Cancel configuration changes and restore the original configuration %C2 Force configuration changes to take effect immediately REMOTE CONFIGURATION Type: Configuration Format: AT [cmds] %Fn [cmds] Description: Configure another device’s data remotely Command Function %F0 No parity, 8 data bits %F1 Mark parity, 7 data bits %F2 Odd parity, 7 data bits %F3 Even parity, 7 data bits RINGING SIGNAL VOLUME Type: Configuration Default: Unidentified Range: 0-9 Format: AT [cmds] *Rn [cmds] Description: Sets the ringing signal volume SECURITY ACCOUNTS Type: Configuration Format: AT [cmds] %An [cmds] Description: Create and configure security accounts SECURITY ACCOUNTS Type: Configuration Format: AT [cmds] %Sn [cmds] Description: Access security accounts SERIAL PORT RATE Type: Configuration Format: AT [cmds] %Bn [cmds] Description: Remotely configure a modem’s serial port rate Command Function %B0 110bps %B1 300bps %B2 600bps %B3 1200bps %B4 2400bps %B5 4800bps %B6 9600bps %B7 19200bps %B8 38400bps %B9 57600bps %B10 115200bps SERVICE PROFILE ID Type: Configuration Format: AT [cmds] Sn=? [cmds] Description: Sets the service profile ID Command Function *S1 The SPID for the Voice B-channel *S2 The SPID for the Data B-channel TELEPHONE COMPANY PROTOCOL Type: Configuration Format: AT [cmds] *Mn [cmds] Description: Set switch protocol Command Function *M0 Point-to-point *M1 Multipoint TERMINAL ENDPOINT ID Type: Configuration Format: AT [cmds] *T [cmds] Description: Sets the Terminal endpoint ID Command Function *T1 0-63 for the Voice B-channel *T2 0-63 for the Data B-channel TONE FREQUENCIES Type: Configuration Format: AT [cmds] %Tn [cmds] Description: Enables recognition of the tone frequencies VOLUME Type: Configuration Format: AT [cmds] *Cn [cmds] Description: Sets the volume of the sound that comes out of the analog device jack Command Function *C0 Off *C1 Volume level 1 *C2 Volume level 2 *C3 Volume level 3 *C4 Volume level 4 *C5 Volume level 5 *C6 Volume level 6 *C7 Volume level 7 *C8 Volume level 8 *C9 Volume level 9 S(status) -REGISTERS BIT MAPPED REGISTER Type: Register Format: AT [cmds] S15=n [cmds] Unit: Bit-mapped Description: Controls fallback Bit Value Function 0 1 Disable the modem’s extra high frequency equalization if it causes problems on shorter -link calls- for HST modulation only 1 2 Disable online fallback 2 4 Disable 450bps back channel ---HST only 3 8 Reset non-ARQ mode transmit buffer from 1.5Kbytes to 128 4 16 Disable MNP level 4 5 32 Set backspace key to delete 6 64 Set for some incompatable 2400bps MNP-I modems 7 128 Custom applications only BIT MAPPED REGISTER S16 Type: Register Format: AT [cmds] S16=n [cmds] Unit: Bit-mapped Description: Controls loopback tests and test pattern Bit Value Function 2 4 Test pattern 3 8 Remote digital loopback BIT MAPPED REGISTER S53 Type: Register Format: AT [cmds] S53=n [cmds] Default: 126 Description: Bit mapped register Bit Value Function 0 1 Dial security enabled 1 2 Prompting enabled 2 4 Local access password protection enabled BIT MAPPED REGISTER S54 Type: Register Format: AT [cmds] S54=n [cmds] Unit: Bit mapped Bit Value Function 0 1 Disable 2400 symbol rate 1 2 Disable 2743 symbol rate 2 4 Disable 2800 symbol rate 3 8 Disable 3000 symbol rate 4 16 Disable 3200 symbol rate 5 32 Disable 3429 symbol rate 6 64 Disable Call Indicate 7 128 Disable V.8 BIT-MAPPED REGISTER S13 Format: AT [cmds] S13=n [cmds] Default: 170 Range: 0-174 Unit: Bit-mapped Description: Controls echo, result codes and display, dial mode, and answer/originate mode. Bit Value Function 0 1 Reset when DTR drops 1 2 Reverse normal auto answer mode 2 4 Disable 250 msec pause before result code display 3 8 On DTR signal, Autodial the number stored in NVRAM at position 0 4 16 At power on/reset, auto dial number stored in NVRAM at position 0 5 32 Disable HST 6 64 Disable MNP level 3 7 128 Hardware reset BIT-MAPPED REGISTER S14 Format: AT [cmds] S14=n [cmds] Default: 170 Range: 0-174 Unit: Bit-mapped Description: Controls echo, result codes and display, dial mode, and answer/originate mode. Bit Value Function 0 1 Disconnect on escape code 1 2 Send result codes only when originating a call BIT-MAPPED REGISTER S21 Format AT [cmds] S21=n [cmds] Default: Unidentified Range: Unidentified Unit: .01 second Description: Sets the duration of breaks sent from the modem to the computer or terminal BIT-MAPPED REGISTER S28 Format AT [cmds] S28=n [cmds] Default: Unidentified Range: 8 Unit: .1 second Description: Sets the duration of the extra 3000/600 Hz answer tones sent during handshaking. BITMAPPED REGISTER S27 Format AT [cmds] S27=n [cmds] Default: Unidentified Range: 0 Unit: Bit-mapped Description: Selects modulation Bit Value Function 0 1 Enable ITU-T V.21 1 2 Enable un-encoded modulation in V.32 mode 2 4 Disable V.32 modulation 3 8 Disable 2100Hz answer tone 4 0 V.42 detection, LAPM error control, MNP 16 Disable MNP 0 Disable V.42 detection and LAPM 16 Disable detection phase 5 0 V.42 detection, LAPM error control, MNP 32 Disable MNP 0 Disable V.42 detection and LAPM 32 Disable detection phase 7 128 Unusual software incompatibility BIT-MAPPED REGISTER S34 Type: Register Format: AT [cmds] S34n [cmds] Default: 0 Range: Unidentified Unit: Unidentified Description: Controls V.32bis Bit Value Function 0 1 Disable V.32bis 1 2 Disable modem’s enhanced proprietary V.32bis modulation 2 4 Disable the faster retrains that occure during proprietary V.32terbo modulation 3 8 Enable V.23 4 16 Force the MR LED to show DSR 5 32 Enable MI/MIC 6 64 Disable remote access busy message 7 128 Disable V.32terbo BIT-MAPPED REGISTER S51 Format AT [cmds] S51=n [cmds] Default: 0 Range: Unidentified Unit: Bit-mapped Description: MNP/V.42 control Bit Value Function 0 1 Disable MNP/V.42 for V.22 1 2 Disable MNP/V.42 for V.22bis 2 4 Disable MNP/V.42 for V.32/V.32bis/V.32terbo 6 64 Disable selective reject 7 128 Enable handset exclusion delay BIT-MAPPED REGISTER S55 Type: Register Format AT [cmds] S55=n [cmds] Unit: Bit mapped Bit Value Function 0 1 Disable 8S-2D mapping 1 2 Disable 16S-4D mapping 2 4 Disable 32S-2D mapping 3 8 Disable 64S-4D mapping BIT-MAPPED REGISTER S56 Type: Register Format AT [cmds] S56? [cmds] Unit: Bit mapped Bit Value Function 0 1 Disable non-linear coding 1 2 Disable TX level deviation 2 4 Disable pre-emphasis 3 8 Disable precoding 4 16 Disable shaping 6 64 Disable V.34 7 128 Disable V.FC BIT-MAPPED REGISTER S67 Type: Register Format AT [cmds] S67 [cmds] Unit: Bit mapped Bit Value Function 0 1 Disable non-linear coding 1 2 Disable TX level diviation 2 4 Disable preemphasis 3 8 Disable precoding 4 16 Disable shaping 6 64 Disable V.34 7 128 Disable V.FC BIT-MAPPED REGISTER S68 Type: Register Format AT [cmds] S68 [cmds] Unit: Bit mapped Bit Value Function 0 1 Enable V.110 fallback 1 2 Use fixed network rate 2 4 Fix the network rate at 64Kbps 3 8 Route incoming analog calls to the data port 4 16 Enable a 45-65 second link delay 5 32 Map B1 LED = B-channel 1 and B2 LED to B-channel 2 6 64 Disable all blinking patterns for B-channel LED’s BIT-MAPPED REGISTER S69 Type: Register Format AT [cmds] S69 [cmds] Unit: Bit mapped Bit Value Function 0 1 Disable Plug and Play signaling DSR RECOGNITION Type: Register Format AT [cmds] S25=n [cmds] Default: 5 Range: Unidentified Unit: .1 second Description: Sets DTR recognition time DSR SIGNAL Type: Register Format AT [cmds] S24=n [cmds] Default: 150 Range: Unidentified Unit: .02 second Description: Sets the duration between pulsed DSR signals when the modem is set to &S2 or &S3. FLOW CONTROL CHARACTER - XOFF Format AT [cmds] S23=n [cmds] Default: 19 Range: Unidentified Unit: ASCII Description: Sets the character used to represent XOFF FLOW CONTROL CHARACTER - XON Format AT [cmds] S22=n [cmds] Default: 17 Range: Unidentified Unit: ASCII Description: Sets the character used to represent XON GUARD TIME DURATION Type: Register Format AT [cmds] S43=n [cmds] Default: 200 Unit: .02 second Description: Sets the duration of the guard time for the remote access sequence INACTIVITY TIMER Type: Register Format AT [cmds] S19=n [cmds] Default: Unidentified Range: Unidentified Unit: Minute Description: Sets the duration in minutes for the inactivity timer REMOTE ACCESS Type: Register Format AT [cmds] S41=n [cmds] Default: 0 Description: Sets the number of allowable remote access login attempts, thus enabling or disabling remote access. REMOTE ACCESS ESCAPE CHARACTER Type: Register Format AT [cmds] S42=n [cmds] Default: 126 Range: Unidentified Unit: Unitdentified Description: Stores the ASCII decimal code for the remote access escape character. TRANSMIT BUFFER Type: Register Format AT [cmds] S38n [cmds] Default: 0 Description: Sets the time before a forced hang up and clearing of the transmit buffer when DTR drops during an ARQ call.