ECHO COMMUNICATIONS I336PF Card Type Modem (asynchronous) Chipset U.S. Robotics Maximum Data Rate 33.6Kbps Maximum Fax Rate 14.4Kbps Data Modulation Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 Rockwell V.FC Fax Modulation ITU-T V.17, V21CH2, V.27ter, V.29 Error Correction/Compression MNP5, V.42, V.42bis Fax Class Class I & II Data Bus 8-bit ISA [Image] CONNECTIONS Function Label Function Label Telephone line CN1 Telephone line CN2 SUPPORTED STANDARD COMMANDS Basic AT Commands +++, ‘comma’, A/ A, B, C, D, E, F, H, L, M, O, P, Q, T, V, X &C, &D, &G, &P, &R, &S, &T, &W S-Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S38 Note: See MHI help file for complete information. Proprietary AT Command Set BIT-MAPPED REGISTER S13 Format AT [cmds] S13=n [cmds] Default: 0 Range: 0 - 217 Description: Controls DTR reset, DTR dialing, reset dialing, and MNP3. Bit Value Function 0 0 DTR normal. 1 Reset on low DTR. 2, 1 00 Not used. 3 0 DTR dialing disabled. 1 DTR dialing enabled. 4 0 Reset dialing disabled. 1 Reset dialing enabled. 5 0 Not used. 6 0 MNP 3 enabled. 1 MNP 3 disabled. BIT-MAPPED REGISTER S15 Format: AT [cmds] S15=n [cmds] Default: 0 Range: 0 - 56 Description: Controls non-error-correcting mode buffer, MNP4, and BS/DEL switch. Bit Value Function 2 - 0 000 Not used. 3 0 Non-error-correcting mode transmit buffer set to 1.5KB. 1 Non-error-correcting mode transmit buffer set to 128 bytes. 4 0 MNP 4 enabled. 1 MNP 4 disabled. 5 0 Backspace and delete keys normal. 1 Backspace and delete keys reversed. BIT-MAPPED REGISTER S27 Format: AT [cmds] S27=n [cmds] Default: 0 Range: 0 - 191 Description: Controls V.21, V.32 encoding and modulation, V.42 answer tone and handshake, and 9600 result codes. Bit Value Function 0 0 V.21 disabled. 1 V.21 enabled. 1 0 V.32 trellis coding enabled. 1 V.32 trellis coding disabled. 2 0 V.32 modulation enabled. 1 V.32 modulation disabled. 3 0 2100Hz answer tone enabled. 1 2100Hz answer tone disabled. 5, 4 00 V.42 detect, LAPM and MNP enabled. 01 V.42 detect and LAPM enabled. 10 MNP enabled. 11 LAPM enabled. 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] Default: 10 Range: 0 - 255 Unit: 10 ms Description: Sets the length of error control mode breaks sent from DCE to DTE. BREAK TYPE Type: Configuration Format: AT [cmds] &Yn [cmds] Description: Configures action of break signal. Command Function &Y0 Break empties buffer and is not send to remote modem. &Y1 Break empties buffer and is sent immediately to remote modem. &Y2 Break does not empty buffer and is sent immediately to remote modem. COMPRESSION AND ERROR CORRECTION Type: Register Format: AT [cmds] S51=n [cmds] Default: 0 Range: 0 - 7 Description: Selects compression and error correction for specific modulations. Bit Value Function 0 0 MNP/V.42 enabled during V.22 operation. 1 MNP/V.42 disabled during V.22 operation. 1 0 MNP/V.42 enabled during V.22bis operation. 1 MNP/V.42 disabled during V.22bis operation. 2 0 MNP/V.42 enabled during V.32bis operation. 1 MNP/V.42 disabled during V.32bis operation. COMPRESSION MODE Type: Configuration Format: AT [cmds] &Kn [cmds] Description: Selects the type of data compression that will be used. Command Function &K0 Data compression disabled. &K1 Auto-detect compression mode. &K2 Data compression enabled. &K3 MNP5 data compression only enabled. CONNECTION SPEED UPPER LIMIT Type: Configuration Format: AT [cmds] &Nn [cmds] Description: Sets required connection speed if &U is set to 0; otherwise, sets fastest allowed connection speed. Command Function &N0 No maximum connect speed. &N1 Set maximum connect speed to 300bps. &N2 Set maximum connect speed to 1200bps. &N3 Set maximum connect speed to 2400bps. &N4 Set maximum connect speed to 4800bps. &N5 Set maximum connect speed to 7200bps. &N6 Set maximum connect speed to 9600bps. &N7 Set maximum connect speed to 12Kbps. &N8 Set maximum connect speed to 14.4Kbps. &N9 Set maximum connect speed to 16.8Kbps. &N10 Set maximum connect speed to 19.2Kbps. &N11 Set maximum connect speed to 21.6Kbps. CONNECTION SPEED UPPER LIMIT (CON’T) Command Function &N12 Set maximum connect speed to 24Kbps. &N13 Set maximum connect speed to 26.4Kbps. &N14 Set maximum connect speed to 28.8Kbps. &N15 Set maximum connect speed to 31.2Kbps. &N16 Set maximum connect speed to 33.6Kbps. CONNECTION SPEED LOWER LIMIT Type: Configuration Format: AT [cmds] &Un [cmds] Description: Sets slowest allowed connection speed if &N is set to 1 or higher. Command Function &U0 No minimum connect speed. &U1 Set minimum connect speed to 300bps. &U2 Set minimum connect speed to 1200bps. &U3 Set minimum connect speed to 2400bps. &U4 Set minimum connect speed to 4800bps. &U5 Set minimum connect speed to 7200bps. &U6 Set minimum connect speed to 9600bps. &U7 Set minimum connect speed to 12Kbps. &U8 Set minimum connect speed to 14.4Kbps. &U9 Set minimum connect speed to 16.8Kbps. &U10 Set minimum connect speed to 19.2Kbps. &U11 Set minimum connect speed to 21.6Kbps. &U12 Set minimum connect speed to 24Kbps. &U13 Set minimum connect speed to 26.4Kbps. &U14 Set minimum connect speed to 28.8Kbps. DISPLAY INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays modem properties. Command Function I0 Displays product identification code. I1 Tests and displays ROM checksum result. I2 Tests and displays RAM checksum result. I3 Displays product type. I4 Displays current command settings. I5 Displays current NVRAM settings. I6 Displays current connection’s statistics. I7 Displays product configuration. DISPLAY LAST DIAL STRING Type: Immediate Format: AT [cmds] &ZL? [cmds] Description: Displays the last executed dial string. ERROR CORRECTION MODE Type: Configuration Format: AT [cmds] &Mn [cmds] Description: Selects active error correction protocols. Command Function &M0 Normal mode only. &M4 Auto-detect mode. &M5 ARQ mode only. ESCAPE SEQUENCE RESPONSE Type: Register Format: AT [cmds] S14=n [cmds] Description: Controls the modem's reaction to an escape sequence. Command Function S14=0 Normal operation. S14=1 When +++ is received, modem disconnects and enters command state. EXTENDED RESULT CODES Type: Configuration Format: AT [cmds] &An [cmds] 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. FACTORY DEFAULTS Type: Immediate Format: AT [cmds] &Fn [cmds] Description: Resets the modem to the specified factory profile. Command Function &F0 Modem resets to factory generic profile. &F1 Modem resets to factory hardware flow control profile. &F2 Modem resets to factory software flow control profile. FLOW CONTROL CHARACTER - XOFF Type: Register Format: AT [cmds] S23=n [cmds] Default: 19 Range: 0 - 127 Unit: 1 ASCII character Description: Sets the character used to represent XOFF. FLOW CONTROL CHARACTER - XON Type: Register Format: AT [cmds] S22=n [cmds] Default: 17 Range: 0 - 127 Unit: 1 ASCII character Description: Sets the character used to represent XON. FLOW CONTROL TYPE Type: Configuration Format: AT [cmds] &Hn [cmds] 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 - AMPERSAND Type: Immediate Format: AT [cmds] &$ Description: Displays the AT& command set. HELP - BASIC Type: Immediate Format: AT [cmds] $ Description: Displays the basic (no prefix) AT command set. HELP - DIAL Type: Immediate Format: AT [cmds] D$ Description: Displays dialing options. INACTIVITY TIMER Type: Register Format: AT [cmds] S19=n [cmds 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] 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. PROFILE ON POWER-UP Type: Configuration Format: AT [cmds] Yn [cmds] Description: Selects the profile to restore into the active profile on power-up. Command Function Y0 Restore profile 0 on power-up. Y1 Restore profile 1 on power-up. RESET MODEM Type: Immediate Format: AT [cmds] Zn [cmds] Description: Resets the modem to the specified profile. Command Function Z0 Modem resets to profile set with the Y command. Z1 Modem resets to user profile 0. Z2 Modem resets to user profile 1. Z3 Modem resets to factory generic profile. Z4 Modem resets to factory hardware flow control profile. Z5 Modem resets to factory software flow control profile. STORE TELEPHONE NUMBER Type: Configuration Format: AT [cmds] &Zn=<#> AT [cmds] &Zn=L Description: Writes the indicated telephone number into the non-volatile memory at location n. If the second form is used, the last dial string executed will be stored. TONE DIALING TEST Type: Register Format: AT [cmds] S16=n [cmds] Description: Begins a tone dialing test. Command Function S16=0 Tone dialing test disabled. S16=2 Tone dialing test enabled. V.32 AND V.32bis MODULATIONS Type: Register Format: AT [cmds] S34=n [cmds] Default: 6 Range: 0 - 15 Description: Controls V.32 and V.32bis modulations. Bit Value Function 0 0 V.32bis enabled. 1 V.32bis disabled. 2, 1 11 Not used. 3 0 V.32 modulation disabled. 1 V.32 modulation enabled. V.32 HANDSHAKE TIME Type: Register Format: AT [cmds] S28=n [cmds] Default: 8 Range: 0 - 255 Unit: .1 second Description: Sets the length of the V.32 handshaking phase. V.34 AND V.FC OPTIONS Format: AT [cmds] S56=n [cmds] Default: 0 Range: 0 - 223 Description: Controls non-linear coding, transmit level deviation, pre-emphasis, pre-coding, shaping, V.34, and V.FC. Bit Value Function 0 0 Non-linear coding enabled. 1 Non-linear coding disabled. 1 0 Transmit level deviation enabled. 1 Transmit level deviation disabled. 2 0 Pre-emphasis enabled. 1 Pre-emphasis disabled. 3 0 Pre-coding enabled. 1 Pre-coding disabled. 4 0 Shaping enabled. 1 Shaping disabled. 5 0 Not used. 6 0 V.34 enabled. 1 V.34 disabled. 7 0 V.FC enabled. 1 V.FC disabled. V.34 MAPPING Type: Register Format: AT [cmds] S55=n [cmds] Default: 0 Range: 0 - 15 Description: Controls V.34 mapping. Bit Value Function 0 0 8S-2D map enabled. 1 8S-2D map disabled. 1 0 16S-4D map enabled. 1 16S-4D map disabled. 2 0 32S-2D map enabled. 1 32S-2D map disabled. 3 0 64S-4D map enabled. 1 64S-4D map disabled. V.34 OPTIONS Type: Register Format: AT [cmds] S54=n [cmds] Default: 0 Range: 0 - 255 Description: Controls V.34 baud rate, call indicate, and V.8. Bit Value Function 0 0 2400 baud rate enabled. 1 2400 baud rate disabled. 1 0 2743 baud rate enabled. 1 2743 baud rate disabled. 2 0 2800 baud rate enabled. 1 2800 baud rate disabled. 3 0 3000 baud rate enabled. 1 3000 baud rate disabled. 4 0 3200 baud rate enabled. 1 3200 baud rate disabled. 5 0 3429 baud rate enabled. 1 3429 baud rate disabled. 6 0 Call indicate during V.34 operation enabled. 1 Call indicate during V.34 operation disabled. 7 0 V.8 during V.34 operation enabled. 1 V.8 during V.34 operation disabled. XON/XOFF PASS-THROUGH Type: Configuration Format: AT [cmds] &In [cmds] Description: Selects whether XON/XOFF signals received from the DTE are sent to the remote modem. Command Function &I0 Software flow control disabled. &I1 XON/XOFF passed through local modem. &I2 XON/XOFF signals trapped by local modem.