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                                                    ERROR      Otherwise 
          Command options: 
          #VSK?   Returns the current setting of the #VSK command as an ASCII 
                   decimal value in result code format. 
          #VSK=?  Returns the message,"255". 
          #VSK=n  n defines the 255 unused bytes remaining in the modem voice 
                                      transmit  buffer  after  an  XOFF  is  sent  to  the  DTE. 
 
 
AT#VSP  Silence Detection Period (Voice Receive) 
          This command sets the Voice Receive Mode silence detection period 
          (inactivity timer) value. The parameter, in units of 100ms, can be 
          used when receiving voice data. This is an amount of time, which if 
          elapsed without receiving any ADPCM data, causes the modem to send the 
          <DLE>s or <DLE>q codes after insuring that the buffer is empty. There 
                    are  two  cases: 
          1.  With the modem's silence deletion feature enabled, the #VSP setting 
              is in effect an inactivity timer. The modem must reset this timer 
              on every byte of voice data received. 
          2.  With the modem's silence deletion feature disabled, the modem 
              determines what constitutes silence. This involves monitoring and 
              debouncing the modem value for average energy. If this debounced 
              value is less than an arbitrary threshold constituting the modem's 
              definition of silence for a period greater than that defined by the 
              #VSP setting, the modem sends the <DLE>q or <DLE>s shielded code 
                            to  the  DTE. 
              Parameters:  n=0-255 (0-25.5 seconds); Default: 55 (5.5 seconds) 
              Result Code:  OK        If n=0-255. 
                                                      ERROR        Otherwise. 
          Command options: 
          #VSP?   Returns the current setting of the #VSP command as an ASCII 
                   decimal value in result code format. 
          #VSP=?  Returns the message, "0-255". 
          #VSP=0  Turns off the silence period detection timer. 
          #VSP=n  Where n defines the period without received voice data in 100 
                                      ms  units. 
 
 
AT#VSR  Sampling Rate Selection 
          This parameter, along with the bits per sample (#VBS) command, 
          determines the necessary DTE interface speed to transmit and receive 
          in the Voice Mode. 
          Parameter: n=7200 (Fixed at 7200 Hz sampling rate) 
          Result Codes:   OK       If n=7200 
                                                    ERROR        Otherwise 
          Command options: 
          #VSR?   Returns the current setting of the #VSR command as an ASCII 
                     decimal value in result code format. 
          #VSR=?     Returns the message, "7200". 
          #VSR=7200  Default. 
 
 
AT#VSS  Silence Detection Tuner (Voice Receive) 
          This command enables or disables the Voice Receive mode silence 
          detection, and controls the sensitivity employed by the modem in 
          compressing periods of silence. 
                    Parameters:  n=0-3;          Default:  2 
          Result Codes:   OK         If n=0-3 
                                                    ERROR          Otherwise 
                     

Summary of Contents for CheetahModem ACM 120

Page 1: ......

Page 2: ...1 User s Manual CheetahModem ACM 120 56K Internal PCI Data Fax Voice Modem...

Page 3: ...tional Headquarters No 1 Creation Road III Science based Industrial Park Hsinchu 300 Taiwan R O C Phone 886 3 5770 270 Fax 886 3 5770 267 Internet support accton com tw Asia Pacific Headquarters 1 Cla...

Page 4: ...ng to Your Telephone Set 8 Verifying Your Connection 9 Connecting Microphone and Speaker 9 Configuring CheetahModem Internal PCI with Windows 98 2000 ME NT4 0 10 Tips On Configuring Your Communication...

Page 5: ...s The voice capability renders a wide range of application possibilities from a simple telephone answering device to a sophisticated voice mail system The optional SVD feature allows you to talk and t...

Page 6: ...5 The Appearance of CheetahModem Internal PCI CheetahModem Internal PCI Connection CheetahModem Internal PCI Bracket Connection...

Page 7: ...ication software included driver and manual When you open your package make sure all of the above items are included and not damaged If you see that any components are damaged please notify your deale...

Page 8: ...personal computer Remove the computer cover 3 Select any available PCI slot into which you can install the internal CheetahModem 4 Unscrew and remove the slot cover 5 Hold the internal CheetahModem a...

Page 9: ...phone Set Your CheetahModem also conveniently provides a second modular jack that lets you connect your telephone to the same telephone line that the CheetahModem is using This lets you manually dial...

Page 10: ...ur telephone number For example if your CheetahModem is connected to the telephone line 555 2121 and touch tone dialing is supported in your area type ATDT 5552121 Enter 3 You should hear the busy sig...

Page 11: ...in the modem When Windows detects the modem the message This wizard searches for new drives for PCI Communication Device is displayed Click Next 2 To search for the best drivers for your device click...

Page 12: ...show the message Windows driver files search for the device Accton PCI Modem Enumerator and show the location of driver Click Next 5 Windows has finished installi ng the software Click Finish to comp...

Page 13: ...d the following new hardware PCI Communication Device is displayed Select Automatic search for a better driver then click Next 2 Select The updated software and then click Next Windows will search for...

Page 14: ...are And then wizard will help you to install a driver for new device Click Next to begin installation 2 Select Search for a suitable driver for my device Then click Next 3 If dialog box does not show...

Page 15: ...14 4 Windows will find the driver of this device Then click Next 5 To continue the installation click Yes 6 Windows has finished installing the software Click Finish to complete installation...

Page 16: ...15 Windows NT4 0 1 Double click Setup exe from path E Accton ACM120 WinNT Setup exe E is your CD ROM 2 To begin installing click Next 3 To install the driver of Accton ACM120 click Next...

Page 17: ...16 4 Windows has finished installing the software Click Finish to complete installation...

Page 18: ...es the modem response to control program flow Make sure that the software is set to recognize a CONNECT 28800 response If this does not work set the program to simply recognize just the CONNECT respon...

Page 19: ...o any of the commands available described in the following sections pp Refers to any parameters that is required by the command If you make a mistake while typing a command use the Backspace key to co...

Page 20: ...es a parameter such as 0 and 1 the parameter is identified as n in the left column and described in the right column IMPORTANT Each command except for and A must be preceded by AT and executed when yo...

Page 21: ...S Register type ATSr Enter where r is an S Register number The CheetahModem responds with decimal value of the S Register in three digit format followed by OK 2 To read values from more than one S Reg...

Page 22: ...m the X response sets extended responses are also available that shows the carrier speed compression method and the error correction protocol as described in the following table You can enable the ext...

Page 23: ...200 49 x x x x x CARRIER 9600 50 x x x x x CARRIER 12000 51 x x x x x CARRIER 14400 52 x x x x x CARRIER 16800 53 x x x x x CARRIER 19200 54 x x x x x CARRIER 21600 55 x x x x x CARRIER 24000 56 x x x...

Page 24: ...are descriptions of the different sets of CheetahModem responses X0 The X0 response set consists of the first five responses as well as the NO ANSWER response X1 The X1 response set consists of the fi...

Page 25: ...V 42 MNP4 auto match Data Compression ITU T V 42bis MNP5 auto match Receive Sensitivity 38 dBm Command Set Hayes AT and Escape sequence Memory 2 configuration profiles 4 sets by 34 digit telephone um...

Page 26: ...by one or more of the following measures 1 Reorient of relocate the receiving antenna 2 Increase the separation between the equipment and receiver 3 Connect the equipment into an outlet on a circuit d...

Page 27: ...connect to your line as determined by the REN you should contact your local telephone company to determine the maximum REN for your calling area If your equipment causes harm to the telephone network...

Page 28: ...t Disabled Yes Parity None Yes Pulse make break ratio 39 61 Yes Responses Word Yes Response enable All Yes RTS to CTS delay 10 milliseconds Yes Speaker status On until DCD Yes Speaker volume Low Yes T...

Page 29: ...Tone dial W Wait for dial tone Pause Flash Command append S n Dial a stored number ATEn Command Echo The modem enables or disables the echo of character to the DTE according to the parameter supplied...

Page 30: ...ways on ATM3 Speaker is off when receiving carrier and during dialing but on during answering ATNn Automode Enable This command enables or disables Automode detection see MS command The parameter valu...

Page 31: ...e contents of the last register accessed to 40 ATS 20 sets the contents of the last register accessed to 20 If the number n is beyond the range of the S Registers available the modem will return the E...

Page 32: ...d by country parameters If busy tone detection is enforced and busy tone is not detected NO CARRIER will be reported If dial tone detection is enforced or selected and dial tone is not detected NO CAR...

Page 33: ...ameter value if valid is written to S21 bit 5 AT C0 RLSD remains ON at all times Default AT C1 RLSD follows the state of the carrier AT Dn DTR Option This command interprets the ON to OFF transition o...

Page 34: ...control Default for fax modem modes AT Mn Asynchronous Synchronous Mode Selection External Models Only AT M0 Selects direct asynchronous operation Note that the command sequence M0 N0 selects normal b...

Page 35: ...s Interface HSI capability in the DTE provides synchronous communication capability from an asynchronous terminal Starting AutoSync Set registers S19 S20 and S26 to the desired values before selecting...

Page 36: ...exists ERROR is returned Sets S16 bit 4 when the test is in progress AT T4 Enables digital loopback acknowledgment for remote request i e an RDL request from a remote modem is allowed Sets S23 bit 0 D...

Page 37: ...o dial up line only The parameter value if valid is written to S41 bits 2 and 6 If enabled the modem attempts to retrain for a maximum of 30 seconds AT E0 Disable line quality monitor and auto retrain...

Page 38: ...ly Same as K2 AT K4 Send break to remote modem in sequence with data AT K5 Send break to remote modem in sequence with data Same as K4 Default The third case is where a break is received from a remote...

Page 39: ...range of possible DCE linking speed For example MS 9 1 1200 14400 Supported Options The modem can send a string of information to the DTE consisting of supported options MS The response is MS list of...

Page 40: ...ecified If a number in excess of 9 is entered 9 is used The command works in conjunction with the K command In error correction mode the modem will signal a break through the active error correction p...

Page 41: ...11 dBm to 31 dBm respectively The parameter value if valid is written to S201 bits 0 4 AT M0 26dBm Default AT M1 30dBm AT M2 10dBm AT M3 M10 10dBm AT M11 11dBm AT M12 12dBm AT M30 30dBm AT M31 31dBm...

Page 42: ...n a valid BDR n command is entered the OK result code is sent at the current assumed speed After the OK has been sent the modem switches to the speed indicated by the BDR n command it has just receive...

Page 43: ...e this is set either the FAA or FAE command can be used to force subsequent answers to be Class 1 adaptive answers CLS 2 Class 2 fax This is similar to setting FCLASS 2 and instructs the modem to be a...

Page 44: ...meters n 0 40 0 4 seconds Default 10 1 second Result Codes OK If n 0 40 ERROR Otherwise Command options VBT Returns the current setting of the VBT command as an ASCII decimal value in result format VB...

Page 45: ...eeting message VLS 2 This command instructs the modem to route only the speaker through the modem This setting can Command Mode and the VCON response is generated for completeness However since this i...

Page 46: ...when a voice file is to be received from the line microphone or handset The VLS command should have been previously issued to select the input source Parameters None Result Codes CONNECT When voice tr...

Page 47: ...bitrary threshold constituting the modem s definition of silence for a period greater than that defined by the VSP setting the modem sends the DLE q or DLE s shielded code to the DTE Parameters n 0 25...

Page 48: ...value in result code format VTD Returns the tone reporting capabilities of the modem VTD i j k Where i j k corresponds in ASCII hexadecimal to the desired capabilities as shown below for Voice transmi...

Page 49: ...TX is used when a voice file is to be transmitted to the line speaker or handset The VLS command should have been previously issued to select the output source Parameters None Result Codes CONNECT Whe...

Page 50: ...ed 1 Disabled 1 Bit 3 Result type 0 Short form 1 Long form 0 Bit 5 Dial method 0 Tone dial 1 Pulse dial 1 Bit 7 Originate Answer 0 Answer mode 1 Originate mode 16 0 Bit 0 Local Analog Loopback 0 Disab...

Page 51: ...0 pps P1 2 39 61 ratio at 20 pps P2 3 39 67 ratio at 20 pps P3 0 Bit 6 7 MNP link speed Hn 0 Highest speed H0 Default 1 1200bps H1 2 4800ps H2 29 0 Flash dial modifier time 0 255 with 10 msec in unit...

Page 52: ...ular use Mn 0 Auto adjustment M0 Default 1 Force adjustment M1 5 Bit 3 5 Break handling Kn 0 K0 1 K1 2 K2 3 K3 4 K4 5 K5 Default 1 Bit 6 7 MNP block size An 0 64 characters A0 1 128 characters A1 Defa...

Page 53: ...ets the transmit attenuation level from 0 to 15dBm for the PSTN mode In some countries the transmit level may not be changed Attenuation level 0 to 15dBm 0 to 15dBm transmit level Default 10 10dBm tra...

Page 54: ...53 Online registration For quick warranty registration log on our website at http register acctontech com to register your Accton products...

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