HAYES MICROCOMPUTER PRODUCTS, INC. ULTRA SMARTMODEM 9600 Card Type Fax, Modem (synchronous/asynchronous) Chip Set Unidentified Maximum Data Rate 9600bps Data Bus External Data Modulation Protocol Bell 103/212A ITU-T V.21, V.22, V.22bis, V.23, V.32 Error Correction/Compression Adaptive data compression, V-series LAPB, MNP5, V.42, V.42bis, X.25 [Image] CONNECTIONS Function Label Function Label Line in CN1 DC power CN4 Line out CN2 Power switch SW2 RS-232/422 CN3 COMMAND SET SELECTION Setting SW1/C SW1/D AT commands only Up Up Asynchronous V.25bis Up Down Synchronous V.25bis Down Up HDLC framing Synchronous V.25bis Down Down Character framing Note: Our normal convention for switches is On/Off, this document will use Up/Down. USER CONFIGURABLE SETTINGS Setting Label Position Command recognition enabled/smart mode SW1/A Up Command recognition disabled/dumb mode SW1/A Down Carrier signal adjustment disabled SW1/B Up Carrier signal adjustment enabled SW1/B Down Note: Our normal convention for switches is On/Off, this document will use Up/Down. DIAGNOSTIC LED(S) LED Color Status Condition HS Red On Modem is operating at 4800bps or faster HS Red Off Modem is operating at slower than 4800bps AA Red On Auto-answer enabled/ring indicated when Auto-answer disabled AA Red Off Auto-answer disabled/ring indicated when Auto-answer enabled CD Red On Carrier signal detected CD Red Off Carrier signal not detected OH Red On Modem is off-hook OH Red Off Modem is on-hook RD Red On Modem is receiving data RD Red Off Modem is not receiving data SD Red On Modem is transmitting data SD Red Off Modem is not transmitting data TR Red On DTR signal is high TR Red Off DTR signal is low MR Red On Power is on MR Red Off Power is off MR Red Blinking Self-test or diagnostic mode enabled Proprietary AT Command Set 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. Modifier Function P Pulse dialing enabled R Answer mode enabled, originate mode disabled following handshake initiation. S=n Dial stored telephone number n T Tone dialing enabled W Dialing resumed following dial tone detection , Dialing paused for amount of time specified in S8 register ! Modem commanded to go off-hook for specified time before returning on-hook. @ Wait for quiet answer ; Modem returned to command state after dialing REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested Command Function I0 Reports product code I1 Reports ROM checksum I2 Tests and reports ROM checksum BUFFER SIZE - LOWER LIMIT Type: Register Format: AT [cmds] S49=n [cmds] Default: 8 Range: 1-249 Unit: 1 byte Description: Controls the low-end size of the buffer during error-control or auto-speed buffering mode BUFFER SIZE - UPPER LIMIT Type: Register Format: AT [cmds] S50=n [cmds] Default: 16 Range: 2-250 Unit: 1 byte Description: Controls the high-end size of the buffer during error-control or auto-speed buffering mode LEASED LINE ATTENUATION LEVEL Type Register Format AT [cmds] S63=n [cmds] Default 0 Range 0-15 Unit -1 dBm Description Sets the power level for transmission over leased lines FRAME LIMIT Type Register Format AT [cmds] S69=n [cmds] Default: 15 Range: 0-15 Unit: 1 frame Description: Sets the maximum number of packets that may be sent without acknowledgment by the remote system. Note: LAPM connections use a maximum of 15 frames. LAPB and X.25 connections use a maximum of 8 frames. FRAME RE-TRANSMISSION Type Register Format AT [cmds] S70=n [cmds] Default: 10 Range: 0-255 Unit: 1 frame Description: Sets the limit for the number of re-transmissions the local modem attempts when an error-control mechanism detects frame transmission data errors. After the re-transmission limit has been reached, the modem initiates the hang-up process. LINK LAYER TIMER Type Register Format AT [cmds] S71=n [cmds] Default: 2 Range: 1-255 Unit: .1 second Description: Sets the maximum duration the local modem waits for a response after sending the link layer. If no response is received within LINKLIMIT (see note), the local modem re-transmits the link layer. Note: The duration is determined according to the formula: LINKLIMIT = 2(maximum packet size + 11)(8 + line speed[bps]) + S71 + 500 ms FLAG IDLE TIMER Type Register Format AT [cmds] S72=n [cmds] Default: 30 Range: 1-255 Unit: 1 second Description: Sets the maximum duration the modem waits after detecting loss of both data and flag-idle signals. When the maximum duration is reached, the modem initiates the hang-up process. A value of 0 in S72 allows an indefinite wait. DATA LOSS TIMER Type Register Format AT [cmds] S73=n [cmds] Default: 5 Range: 1-255 Unit: 1 second Description: Sets the maximum duration the modem waits after detecting loss of data while receiving good carrier and flag idle signals. When the maximum duration is reached, the local modem sends a query to the remote modem to determine if it is operating properly. When the value calculated for QUERYLIMIT is reached (see note), the modem initiates the hang-up process. Note: The local modem will send the query several times according to the formula: QUERYLIMIT= 2(LINKLIMIT)(S73) seconds The value for LINKLIMIT is defined in S71. ASU NEGOTIATION Type Register Format AT [cmds] S84=n [cmds] Description: Sets the Adaptive Start-Up (ASU) negotiation method Command Function S84=0 ASU disabled S84=128 Fixed startup S84=129 Both local and remote modems use fast startup S84=130 Both local and remote modems use smooth startup S84=131 Local modem uses fast startup, remote uses smooth startup S84=132 Local modem uses smooth startup, remote uses fast startup ASU NEGOTIATION REPORT Type Register Format AT [cmds] S85? [cmds] Description: Reports the Adaptive Start-Up (ASU) negotiation method Value Meaning 0 ASU disabled 128 Fixed startup 129 Both local and remote modems use fast startup 130 Both local and remote modems use smooth startup 131 Local modem uses fast startup, remote uses smooth startup 132 Local modem uses smooth startup, remote uses fast startup MI/MIC Type Register Format AT [cmds] S92=n [cmds] Description: Controls the Mode Indicate/Mode Indicate Common (MI/MIC) interface. Command Function S92=0 MI/MIC disabled S92=1 Level triggered, originate mode, ring indicator pulse enabled S92=3 Edge triggered, originate mode, ring indicator pulse enabled S92=5 Level triggered, answer mode, ring indicator pulse enabled S92=7 Edge triggered, answer mode, ring indicator pulse enabled S92=9 Level triggered, originate mode, ring indicator pulse disabled S92=11 Edge triggered, originate mode, ring indicator pulse disabled S92=13 Level triggered, answer mode, ring indicator pulse disabled S92=15 Edge triggered, answer mode, ring indicator pulse disabled V.25bis DTE SPEED Type Register Format AT [cmds] S93=n [cmds] Description: Sets the speed of the local serial port when in V.25bis mode. Command Function S93=3 300bps S93=5 1200bps S93=6 2400bps S93=7 4800bps S93=9 9600bps COMMAND SET OPTIONS Type Register Format AT [cmds] S94=n [cmds] Default: 0 Range: 0-15 Unit: Bit-mapped Description: Sets various options for command set modes Bit Value Function 1, 0 00 Use AT command set 01 Use asynchronous V.25 command set 10 Use synchronous V.25 command set with HDLC framing 11 Use synchronous V.25 command set with character framing 2 0 Addressed calling 1 Direct access calling 3 0 Use ASCII character set 1 Use EBCDIC character set PAD CONFIGURATION Type: Register Format: AT [cmds] S53=n [cmds] Description: Sets various options for the X.25 Packet Assembler/Disassembler. Command Function S53=0 CCITT compatibility S53=1 CCITT compatibility, display channel number before PAD prompt ( 1* ) S53=2 Fixed user interface, PAD prompt hyphen ( - ) S53=3 Fixed user interface, display channel number before PAD prompt ( 1- ) S53=4 Fixed control interface, PAD prompt hyphen S53=5 Fixed control interface, display channel number before PAD prompt S53=6 Fixed user and fixed control interface, PAD prompt hyphen S53=7 Fixed user and fixed control interface, display channel number before PAD prompt MINIMUM INCOMING LCN Type Register Format AT [cmds] S74=n S75=n [cmds] Default: 0 (S74), 0 (S75) Range: 1-40 (S74), 1-99 (S75) Unit: None Description: These registers set the lowest Logical Channel Number (LCN) that the packet driver will attempt to answer calls on. The address itself may range from 0 - 4095. Note: The address is determined by the formula: ADDRESS = S74 * 100 + S75 MAXIMUM INCOMING LCN Type Register Format AT [cmds] S76=n S77=n [cmds] Default: 40 (S76), 95 (S77) Range: 1-40 (S76), 1-99 (S77) Unit: None Description: These registers set the highest Logical Channel Number (LCN) that the packet driver will attempt to answer calls on. The address itself may range from 0 - 4095. Note: The address is determined by the formula: ADDRESS = S76 * 100 + S77 OUTGOING LCN Type Register Format AT [cmds] S78=n S79=n [cmds] Default: 0 (S78), 16 (S79) Range: 1-40 (S78), 1-99 (S79) Unit: None Description: These registers set the Logical Channel Number (LCN) that the packet driver will place calls on. The address itself may range from 0 - 4095. Note: The address is determined by the formula: ADDRESS = S78 * 100 + S79 RESTART REQUEST Format AT [cmds] S80=n [cmds] Default: 1 Range: 0-255 Unit: None Description: Sets the maximum number of retransmission requests ACKNOWLEDGMENT WAIT TIMER Type: Register Format AT [cmds] S81=n [cmds] Default: 18 Range: 0-255 Unit: 10 seconds Description: Maximum time the modem will wait for acknowledgment of a request for retransmission before it initiates recovery.