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_______ GETTING STARTED MANUAL _________
If you will use this modem with a personal computer and a popular
off-the-shelf communications software, for a simple modem application
such as going on-line with bulletin boards, up-loading or downloading
files, and sending fax messages, you may now go to the Getting Started
Manual to exercise hardware connection for your modem. Then, you
should refer to your software's manual to get on the road. This manual
will serve as your guide for modem commands.
If you would like to know the modem operations and commands in
more depth, the Electronic Manual of Fax-modem diskette is included
to serve this purpose.
The LED Indicators on the Front Panel _______________________
The indicators on the modem's front panel denote the current modem
operation characteristics and status. They are:
MR Modem Ready. Lights up when the modem is turned on.
TR Terminal Ready. Flashes when DTR signal is detected.
CD Carrier Detected. Lights up when a carrier from the remote
modem is detected.
SD
Send Data. Flashes when the modem is sending data to the
remote modem or when receiving data from the local computer.
RD Receive Data. Flashes when the modem is receiving data from
the remote modem or when sending data to the local computer.
AA Auto-Answer. Lights up when the modem is set for auto-answer.
Flashes when an incoming ring is detected.
OH Off-Hook. Lights up when the modem is using the telephone line.
Off when the modem hangs-up (on-hook).
HS
High Speed. Lights up when modem speed exceeds 4800 bps.
When you turn on your modem, at least the MR indicator shall light up.
There may be some other indictors lights depended on the settlement of
the modem. Otherwise, you should check the power connected to your
modem.
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Summary of Contents for Datatronics ITU-T V.42bis

  • Page 1 _______ GETTING STARTED MANUAL _________ If you will use this modem with a personal computer and a popular off-the-shelf communications software, for a simple modem application such as going on-line with bulletin boards, up-loading or downloading files, and sending fax messages, you may now go to the Getting Started Manual to exercise hardware connection for your modem.
  • Page 2 The Rear Panel and the Connectors __________________________ PHONE :Accepts a telephone set connected parallel to your modem. : Accepts the RJ-11 cable that links your modem to a LINE telephone line or to a 2-wire leased-line. RS-232 :Accepts the serial cable that is connected between your modem and your computer.
  • Page 3 your modem is active, it may perform at an exceeding speed and an ordinary serial port card may sometimes cause data loss. You will also require an RS-232 cable to connect your modem with computer. You will be Asked to buy a modem cable if you are a PC user.
  • Page 4 Test the Power Connection __________________________________ You can turn on your modem by pushing the power switch button and watch the front panel indicators. Depending on the setting of your modem, the MR and other indicators should light up. If none is lit, check the power connection for the modem.
  • Page 5 The ITU-T V.42bis can perform data compression at a rate up to four times, depending on the format of data. That is, the throughput can be reach as high as 57,600 bits per second when you are on-line at 14,400 bps.
  • Page 6 __________ The Modem Commands _________ Prefix, Repeat and Escape Commands ________________________ AT Attention. Precede all command lines except A/ and +++ Re-execute the last command in command buffer +++ Escape characters, requires guard time before and after Dial Commands and Dial Modifiers __________________________ Originate a call Re-Dial the last valid telephone number...
  • Page 7 display DCE speed modem as if the asynchronous escape sequence had been Disable V.42 response codes, entered. the modem return to display DCE speed asynchronous command state Enable basic response codes without disconnecting. Alone with any of following Do not detect dial tone and &Q2, &Q3 DTR drop causes busy signal the modem to hang up.
  • Page 8 &K3 RTS/CTS flow control &R0 Modem turns CTS on when &K4 XON/OFF flow control detects RTS from the local &K5 Unidirectional XON/OFF computer &K6 RTS/CTS, XON/XOFF flow &R1 Ignore RTS. Modem turns CTS control on when ready to receive synchronously &M0 Set modem for async operation &S0 Modem forces DSR always on...
  • Page 9 Note: &Q,&M: for Sync mode only V.42bis and MNP Commands _______________________________ MNP block size 64 characters detection MNP block size 128 Connect messages are characters controlled by the command MNP block size 192 settings X, W, and S95. characters Connect message displayed in MNP block size 256 the single line format characters...
  • Page 10 Voice Commands for Rockwell Chip Set _____________________ The Voice Command Command Function Answering in Voice/Audio Mode Dial command in Voice/Audio Mode Hang up in Voice/Audio Mode Reset from Voice/Audio Mode #BDR=n Select baud rate (turn off autobaud) 0<n<48 #CID=n Enable Caller ID detection and select reporting format n=0~2 #CLS=n Select data, fax, or Voice/Audio n=0,1,2,8 #MDL?
  • Page 11 Fax Class I Commands___________________________________ Command Function Service Class ID +FCLASS= Service Class Fax Class 1 Commands +FAE=n Data/Fax auto Answer +FTS=n Stop Transmission and Wait +FRS=n Receive Silence +FTM=n Transmit Data +FRM=n Receive Data +FTH=n Transmit Data with HDLC Framing +FRH=n Receive Data with HDLC Framing Page: 11...
  • Page 12 Fax Class II Commands __________________________________ Command Function +FCLASS=n Service class +FAA=n Adaptive answer +FAXERR Fax error value +FBOR Phase C data bit order +FBUF? Buffer size (read only) +FCFR Indicate confirmation to receive +FCLASS= Service class +FCON Facsimile connection response +FCIG Set the polled station identification +FCIG:...
  • Page 13 S-Register Summary _______________________________________ Register Range Units Default Function 0-255 Rings Rings to Auto-Answer 0-255 Rings Rings Counter 0-255 ASCII Escape character 0-127 ASCII Carriage return character 0-127 ASCII Line Feed Character 0-255 ASCII Backspace character 2-255 Wait Time for Dial Tone 1-255 Wait Time for Carrier 0-255...
  • Page 14 Register Range Units Default Function 194(C2h) General Bit Mapped Options Status 0-255 ASCII 17(11h) XON Character 0-255 ASCII 19(13h) XOFF Character S34-S35 Reserved LAPM Failure Control Line Connection Speed 0-255 Delay Before Forced Hang-up Flow Control Bit Mapped Options Status 104(68h) General Bit Mapped Options Status 195(C3h)
  • Page 15: Result Codes

    Result Codes ___________________________________________ n Value in ATXn Command Short Form Long Form Notes Note 2 Connect Ring No Carrier Error Connect 1200 No dial tone Busy No Answer Connect 600 Connect 2400 Connect 4800 Connect 9600 Connect 7200 Connect 12000 Connect 14400 Connect 19200 Connect 38400...
  • Page 16 n Value in ATXn Command Short Form Long Form Notes Carrier 16800 Carrier 19200 Carrier 21600 Carrier 24000 Carrier 26400 Carrier 28800 Connect 16800 Connect 21600 Connect 24000 Connect 26400 Connect 28800 Compression: Class 5 Compression: V.42bis Compression: None Protocol: None Protocol: LAPM Carrier 31200 Carrier 33600...
  • Page 17 n Value in ATXn Command Short Form Long Form Notes Connect 44000 Note 2 Connect 46000 Note 2 Connect 48000 Note 2 Connect 50000 Note 2 Connect 52000 Note 2 Connect 54000 Note 2 Connect 56000 Note 2 +FCERROR Notes: An “x”...
  • Page 18 _ Installation of Modem Driver in Windows 95/98 ____ (1) Turn on computer. Move mouse to “Start” at left hand side, enter “Setting-s” and select “Control panel”. (2) Under “Control Panel” select “Modems”. (or Move mouse to “My compu-ter” at right hand side, enter “Control panel and Modems”.) Page: 18...
  • Page 19 In Install New Modem, please tick “Don‘t detect my modem; I will select it from a lost”, and then go to next step. (4) Because the modem is not listed, you click “Have Disk” for other modem models. Page: 19...
  • Page 20 (5) Insert the installation disk into the driver selected, click “Browse”, select one of the inf files (Dtxmodem.inf for discovery products; Logmodem.inf for DataSystem products), and then click “OK”. (6) Click the manufacturer and model of your modem, and then go to next step.
  • Page 21 (7) Select the port to use with this modem, for example COM2, and then click “Next”. (8) Your modem has been set up successfully. Click “Finish”. Page: 21...
  • Page 22 (9) Select the modem you have, and then click “OK”. Page: 22...