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Technical Specifications    B-1

Appendix B 

Technical Specifications

Standards Compatibility

The Courier uses multiple standard data communications
protocols and is also compatible with many nonstandard
schemes.

NOTE:

  The International Telecommunication Union (ITU-T)

was formerly the International Telegraph and Telephone
Consultative Committee (CCITT).

Modulation

ITU-T V.34

33.6/31.2/28.8/26.4/24/21.6/19.2/16.8/14.4/12
Kbps; 9600/7200/4800 bps asynchronous Trellis
Coded Modulation (TCM)

V.FC

28.8/26.4/24/21.6/19.2/16.8/14.4 Kbps
asynchronous Trellis Coded Modulation (TCM)

V.32terbo

21.6/19.2/16.8/14.4/12 Kbps; 9600/7200 bps
asynchronous Trellis Coded Modulation (TCM);
4800 bps asynchronous Quadrature Amplitude
Modulation (QAM)

HST

16.8/14.4/12 Kbps; 9600/7200 bps asynchronous,
asymmetrical, 450 bps back channel with automatic
handshake adjustment to 300 bps Trellis Coded
Modulation (TCM) and Quadrature Amplitude
Modulation (QAM); 4800 bps asynchronous,
asymmetrical, 450 bps back channel with automatic

Summary of Contents for 002805-00

Page 1: ...Courier V Everything External Modem Getting Started FINAL 4 96 p n 1 024 492 1996 U S Robotics Access Corp 8100 North McCormick Blvd Skokie IL 60076 2999 All Rights Reserved ...

Page 2: ...Class and V FC are trademarks of Rockwell International Any trademarks tradenames service marks or service names owned or registered by any other company and used in this manual are the property of their respective companies 1996 U S Robotics Access Corp 8100 N McCormick Blvd Skokie IL 60076 2999 USA ...

Page 3: ...Switches 2 4 Powering On the Courier 2 6 Chapter 3 Communicating with the Courier 3 1 Windows 95 3 1 Windows 3 x 3 5 DOS 3 6 OS 2 3 6 Mac OS 3 7 Windows NT 3 7 UNIX Linux AIX 3 10 Mainframe OSs 3 10 Testing the Courier 3 11 Chapter 4 Other Features 4 1 Volume Control 4 1 The Voice Data Switch 4 2 Getting Information About Calls 4 6 MI MIC Operations 4 7 Chapter 5 Setups for Common Windows Software...

Page 4: ...Appendix B Technical Specifications B 1 Standards Compatibility B 1 Appendix C Warranty and Notices C 1 Limited Warranty C 1 Notices C 3 ...

Page 5: ...d Reference manual also included with the Courier for detailed information about using advanced features We Welcome Your Suggestions We ve made every effort to provide you with useful accurate information If you have any comments or suggestions about these materials please let us know Voicemail 847 933 5200 Email sysdocs usr com ...

Page 6: ...ing the Courier always requires some kind of communications software The software required differs depending on what you re trying to do Accessing the Internet To access the Internet you need to set up an account with an Internet service provider in your area Often Internet service providers supply you with the software you ll need In other cases support for Internet access is built in to your com...

Page 7: ...puter appear to the network as locally attached You can then use your network just as you would if you were there send mail print files and access LAN drives A remote access package is included with the Courier Calling Bulletin Board Systems BBSs Calling a BBS requires communications software that does terminal emulation The software should also support common standard file transfer protocols such...

Page 8: ...RD SD DTR MR RTS CTS SYNC ARQ FAX HS VOICE DATA COURIER V EVERYTHING with V 34 Status LEDs Voice Data Switch Volume Control SEE PAGE 4 2 SEE PAGE 4 1 SEE PAGE 1 4 Figure 1 1 The Courier V Everything Modem Front To Wall Jack To Telephone To AC Power To Computer Power Switch SEE PAGE 2 4 SEE PAGE 2 4 SEE PAGE 2 6 SEE PAGES 2 4 and A 1 SEE PAGE 2 4 Figure 1 2 The Courier V Everything Modem Back ...

Page 9: ...OH Off Hook On The Courier has control of the line Off The Courier does not have control of the line RD Received Data Status Flashing The Courier is sending data to your computer Off Idle SD Send Data Status Flashing The Courier is receiving data from your computer Off Idle TR Data Terminal Ready Status On DTR signal received from your computer or DTR is forced on using DIP switch 1 Off DTR not de...

Page 10: ... maintain 28 8 Kbps connections It can add up to 4800 bps to the average V 34 connection rate Selective Reject Selective Reject is an optional part of the ITU V 42 LAPM specification This feature improves performance on noisy lines by reducing the amount of overhead incurred when the protocol must resend data due to errors When selective reject is active only the frame that contained the error is ...

Page 11: ... and 300 bps We call this unique combination of abilities V Everything See the Compatibility section in Appendix B Technical Specifications for details Flash ROM Upgradability Courier modems are software upgradable using XMODEM file transfers allowing you quick easy access to updates of the Courier s technology See Chapter 17 Upgrading the Courier s Software in the Courier Modems Command Reference...

Page 12: ...Calls to and from Modems and Fax Machines When used with fax capable communications software the Courier auto detects and responds to calls from modems and Group III fax machines using EIA standard Class 1 or 2 0 fax software Testing ITU T V 54 loopback testing is available The Courier can perform analog digital and remote digital loopback tests See Chapter 15 Testing in the Courier Modems Command...

Page 13: ...u connect the Courier to a computer that uses a Plug and Play operating system such as Windows 95 the computer will automatically detect and configure itself to the support the Courier Synchronous Support The Courier can connect to synchronous serial ports to allow access to mini and mainframe computers See Chapter 12 Dedicated Leased Line and Synchronous Applications in the Courier Modems Command...

Page 14: ...omputer has a 16C550 UART Check your computer s documentation for details An Analog Telephone Line The Courier requires a standard analog telephone line Do not connect the Courier to a digital telephone line Digital lines are commonly used in office buildings and hotels If you are unsure whether your line is analog or digital ask a network administrator or your local telephone company Communicatio...

Page 15: ...r computer s documentation to be sure 8 pin Mini DIN Macintosh DB 9 Male DB 25 Male Figure 2 1 Typical Serial Ports 2 Depending on what kind of serial port is on your computer obtain a serial cable with a connector that will fit either a female DB 25 female DB 9 or a male 8 pin Macintosh serial connector The Courier s end of the serial cable must be a male DB 25 connector For a Macintosh you need ...

Page 16: ...ents The Courier Power adapter Phone cable Quick reference card Customer support services card DOS Windows communications software package A Command Reference manual and this Getting Started manual Figure 2 2 Contents of the Courier Package ...

Page 17: ...ered A is COM1 and B is COM2 3 Connect one end of the phone cable to the wall jack and the other end to the Courier port labeled JACK If you have a telephone that you d like to connect to the Courier plug its cable into the Courier port labeled PHONE 4 Plug one end of the power adapter to the Courier and the other end to a standard AC outlet 5 Switch your computer s power on Setting the DIP Switch...

Page 18: ...es only when originating calls 8 ON OFF Ignore AT commands dumb mode Ch 1 ON Act on AT commands smart mode 9 OFF OFF Disconnect on Ch 2 ON Don t disconnect on 10 OFF OFF Load the configuration that is stored in non volatile memory NVRAM Ch 4 ON Load the F0 configuration from read only memory ROM IMPORTANT When you power ON or reset the Courier the DIP switch settings override the settings you may ...

Page 19: ... the front AA CD NS RD SD TR MR RS CS SYN ARQ FAX HS VOICE DATA COURIER V EVERYTHING with V 34 Figure 2 4 Normal Appearance of the Courier s LEDs When Not Attached to a Computer AA CD NS RD SD TR MR RS CS SYN ARQ FAX HS VOICE DATA COURIER V EVERYTHING with V 34 Figure 2 5 Normal Appearance of the Courier s LEDs When Attached to a Computer and Ready to Receive Commands ...

Page 20: ...ux DOS Mainframe OSs This chapter provides advice about how to get many popular operating systems to communicate with the Courier The last section Testing the Courier explains how to verify that your Courier and software are working together correctly Windows 95 The first time you start Windows 95 after you ve installed the Courier Windows 95 will auto detect the Courier Make sure the Courier is p...

Page 21: ...File directories then 5 U S Robotics Courier Download the MDMUSRCR INF file Or ftp ftp usr com SYS PCB dl05 and get MDMUSRCR INF Installing the INF File 1 Go to an MS DOS Prompt Microsoft Windows 95 Copyright Microsoft Corp 1981 1995 c WINDOWS 2 Change to the directory in which you put the INF file for example the TEMP directory C WINDOWS cd temp Windows responds C TEMP 3 Enter the following comma...

Page 22: ...Internet using Windows 95 Dial Up Networking You can also use Dial Up Networking for accessing remote LANs Make sure Dial Up Networking is installed 1 Click Start Settings Control Panel 2 From the Control Panel double click on Network If a Dial Up Adapter is listed go to step 5 If not continue with step 3 3 Go back to the Control Panel and double click on Add Remove Programs 4 Click the Windows Se...

Page 23: ...e or CD ROM when you are prompted and Windows 95 will install TCP IP protocol support Customize the TCP IP Settings 8 Click Start Settings Control Panel 9 From the Control Panel double click on Network 10 Select TCP IP Dial Up Adapter Properties Click on the DNS Configuration tab Select Enable DNS Type in your Host and Domain names which are provided to you by your Internet service provider Type y...

Page 24: ...to connect Windows 3 x Windows 3 x comes with a built in communications software package Windows Terminal You can use Windows Terminal to test the Courier or you can install the communications software package that is included in the package with the Courier Windows Terminal is in the Accessories group by default Because Terminal only supports speeds up to 19200 bps you will probably want to use a...

Page 25: ...l our fax on demand service at 800 762 6163 or 847 676 1598 or our BBS at 847 982 5092 Request document 10000 for a list of our technical support documents OS 2 To get the best performance you should replace the standard OS 2 serial port drivers COM SYS and VCOM SYS with SIO SYS and VSIO SYS You can get these enhanced drivers from our BBS at 847 982 5092 Check file area 18 OS 2 Support Utilities e...

Page 26: ...0 762 6163 or 847 676 1598 and request document 10000 for a list of available documents Or call our Macintosh BBS at 847 676 1598 Windows NT As a Client If you want only to dial out using the Courier Windows NT works very much like Windows 3 x Windows NT ships with a built in Terminal program that can support speeds of up to 115 2 Kbps Additionally Windows NT includes a Remote Access Dialer but it...

Page 27: ...t the COM port to which the Courier is connected You should be able to send AT Enter and get an OK response From the Control Panel double click Network The Network Settings window appears Scroll down the list of Installed Network Software and select Remote Access Service Click Configure The Remote Access Setup windows appears Click Add ...

Page 28: ...er from a list Select US Robotics Courier V 34 and then click OK and exit from Network setup When you re prompted to restart NT click Don t Restart Now Then from Program Manager click File Shutdown When NT shuts down power your computer off and then on again Now RAS knows about the serial port and the Courier that is attached Next you need to set up user accounts and access privileges those tasks ...

Page 29: ... default minicom is located in the usr bin directory For instructions about how to set up your UNIX Linux or AIX communications software package call our fax on demand service at 800 762 6163 or 847 676 1598 or our BBS at 847 982 5092 Request document 10000 for a list of our technical support documents Mainframe OSs Refer to Chapter 12 Synchronous Applications in the Courier Modems Command Referen...

Page 30: ...ttings Make the following settings If you are using a computer with a serial port that cannot support high speeds choose 19200 Then click OK 3 Click Setup Modem Setup Select the Comm Port to which the Courier is attached Click OK 4 In the terminal window type AT Enter The Courier should respond OK 5 Dial the U S Robotics BBS at 847 982 5092 For example ATDT18479825092 Enter dials the U S Robotics ...

Page 31: ...ou dial the phone number for example ATDT 70 18479825092 Enter The following screens are what you should see when you dial the BBS atdt9825092 CONNECT 31200 ARQ V34 LAPM V42BIS CONNECT 31200 ARQ V34 LAPM V42BIS CONNECT 115200 02 27 96 12 52 21 Error Correcting Modem Detected USR Support BBS ComServer 486 PCBoard R v15 22 100 Node 11 Testing your system capability Do you want graphics Enter yes Fig...

Page 32: ...ol The volume control is located under the right front of the Courier Slide the control toward the front of the Courier to increase the volume Slide the control toward the back of the Courier to decrease the volume Use the ATMn command to control when the speaker sounds M1 is the default Mn Control when the speaker sounds M0 The speaker is always off M1 The speaker is on until the call is negotiat...

Page 33: ...m is using the phone line the modem automatically disconnects the phone handset If you keep the handset off hook once you hang up the modem the handset takes over the phone line and you can use voice communications again If the remote user does not have handset exclusion you may not be able to switch back to voice mode successfully once you have switched to Data mode If the remote user does not ha...

Page 34: ...es dead Do not hang up the phone Immediately afterward press the Voice Data switch of the answering modem the one that set S32 2 The modems go through the normal negotiation process If the answering modem has handset exclusion the answering user should not hang up the phone either If the remote modem doesn t have handset exclusion you can try to switch back to voice later Or you both can hang up y...

Page 35: ...em doesn t have handset exclusion switching back to voice may not be successful If you don t want to switch back to voice later hang up both phones as soon as the modems go off hook Changing the Function of the Voice Data Switch Use Register S32 to set the voice data switch for the function you desire The default is S32 1 pressing the switch forces the modem off hook in Originate mode Holding the ...

Page 36: ...u push the Voice Data switch If no command string is stored the Courier still reports that S32 9 but actually behaves as if it is set to S32 1 Originate mode You can program the voice data switch to execute a stored command string when pressed The following example assigns a command string that displays the link diagnostics screen when you press the voice data switch AT ZC I6 Enter Set the voice d...

Page 37: ...witch setting will override your setting at power on or reset even if you add W to write the command to NVRAM Once you ve set DIP switch 9 or sent ATS14 0 0 Enter you can type the following command to get to online command mode and the Courier will not hang up To return on line type ATO Enter Current Settings Current settings ATI4 Data or fax mode AT FCLASS 0 Data 1 Class 1 fax 2 0 Class 2 0 fax C...

Page 38: ...r these applications the Courier must power up in Originate mode Then the Courier goes on line and accepts data when it connects with the number dialed by the system equipment Once you ve set Register S34 have the system force the modem off hook by closing the MI MIC leads in the phone line connector Setting the MI MIC Jumpers 1 Send ATS34 5 1 W Enter 2 Power off the Courier and disconnect all of ...

Page 39: ...mpers as shown J4 J6 From J4 J6 To 10 Replace the modem and reconnect the cables CAUTION When you power on the modem there will be potentially hazardous voltage particularly near the phone jacks Do not touch the board when the power is on 11 Power on the modem Check to see that the Off Hook OH status light goes on If you dialed a number listen for an answer tone from the remote modem Then drop the...

Page 40: ...erminal drops the Data Terminal Ready DTR signal your phone equipment probably reverses MI MIC polarity You can solve this problem by reversing the modem s MI MIC wiring Do this by resetting the two jumpers on the printed circuit board Follow the steps from the previous section This time set the jumpers as follows J4 J6 From J4 J6 To If you still have difficulty there may be a problem with the pho...

Page 41: ...this manual and may not apply to future releases of the software packages If you need further help or help with a software package that is not listed here try our fax on demand service at 800 762 6163 or 847 676 1598 or our BBS at 847 982 5092 Request document 10000 for a list of our technical support documents America Online 2 0 1 From the America Online Welcome window choose Setup 2 From the Net...

Page 42: ... for many popular Internet service providers The settings recommended here are the Courier specific ones only 1 Click Setup Communications Port Two settings will be specific to your setup Baud Rate 115200 bps is recommended but only if you have a 16550 UART The UART is a computer chip that controls the transmission and reception of signals through your computer s serial port Check your computer s ...

Page 43: ...Setups for Common Windows Software Packages 5 3 2 Click Setup Communications Modem Select U S Robotics Courier Dual Standard ...

Page 44: ...tarted pcAnywhere 2 0 for Windows 1 From the Smart Setup window go to the Your Modem area and select USRobotics Courier HST Dual Standard 2 Select the serial port and the protocol running on the network into which you ll be dialing and then select OK ...

Page 45: ...Plus 2 0 for Windows 1 Double click on the PROCOMM PLUS icon 2 Select Setup and then Setup 3 Select Data Modem Connection and then Connection Setup as shown in the following window 4 Select Install New Modem or Connection Under AutoDetect select Start Search ...

Page 46: ...the Modems list and select US Robotics Dual Standard 28800 and then select OK Prodigy 1 Start Prodigy 2 From the Prodigy SIGN ON window select Comm Options Setup 3 From the Set Up window select a Modem Speed of 9600 bps and select the Communications Port that the Courier is using then select OK ...

Page 47: ...l your Internet service provider Select Dialler Login Win CIM CompuServe 1 From Windows Main double click on Control Panel From Control Panel double click on Ports Set the COM port that the Courier is using to 19200 baud rate and Hardware flow control 2 Start the WinCIM program and select Special and then Session Settings Make sure that you choose the COM port that the Courier is using and set the...

Page 48: ...nFax PRO 4 0 1 During installation you are asked the following question Do you want Setup to test COM ports for a fax device Select Yes 2 When the following screen appears choose as the Model U S Robotics Inc Courier Dual Standard FAX and then select Continue ...

Page 49: ...rms to the EIA 232 standard If you are connecting the Courier to a Macintosh computer see the section For Macintosh Computers The EIA 232 Interface The Courier s serial port is factory set to signal according to the EIA 232 standard DB 25 Connector Female Figure A 1 Signals at the Courier s Serial Port ...

Page 50: ... signals The minimum required for the Courier to operate asynchronously follows DB 25 DB 9 Pin Pin Function 2 3 Transmitted Data 3 2 Received Data 7 5 Signal Ground 20 4 Data Terminal Ready Flow Control Requirements If your computer and software support Clear to Send and you wish to use Transmit Data hardware flow control H1 Pin 5 DB 25 or Pin 8 DB 9 is required If your computer and software suppo...

Page 51: ...the most reliable performance 4 5 3 8 1 2 2 3 4 5 7 20 Macintosh 8 pin DIN Connector Male DB 25 Connector Male Mac Pin Mac Pin Description Modem Pin Modem Pin Description 1 Output Handshake 4 20 Request to Send and Data Terminal Ready 2 Input Handshake 5 Clear to Send 3 Transmit Data 2 Transmit Data 4 Ground 7 Ground 4 8 Ground to Received Data 5 Received Data 3 Received Data ...

Page 52: ... 6 19 2 16 8 14 4 12 Kbps 9600 7200 4800 bps asynchronous Trellis Coded Modulation TCM V FC 28 8 26 4 24 21 6 19 2 16 8 14 4 Kbps asynchronous Trellis Coded Modulation TCM V 32terbo 21 6 19 2 16 8 14 4 12 Kbps 9600 7200 bps asynchronous Trellis Coded Modulation TCM 4800 bps asynchronous Quadrature Amplitude Modulation QAM HST 16 8 14 4 12 Kbps 9600 7200 bps asynchronous asymmetrical 450 bps back c...

Page 53: ...FSK used by some U K and European phone systems Bell 103 300 bps ITU T V 21 optional asynchronous Frequency Shift Keying FSK Error Control Data Compression Testing and Dialing ITU T V 42 LAPM error control 1200 bps and higher MNP Levels 2 3 and 4 error control level 5 data compression 1200 bps and higher HST Asymmetrical mode at 16 8 14 4 12 Kbps 9600 7200 4800 bps 450 300 bps back channel ITU T V...

Page 54: ...0 16800 14400 12000 9600 7200 4800 bps Serial port connector DB 25 Serial interfaces EIA RS 232 supports Macintosh serial ports Communications channel Full or half duplex on 2 wire phone lines demand driven high speed turnaround in HST mode symmetrical speeds in V 32 bis Data format Binary serial defaults to 8 bit word length no parity and 1 stop bit Word Parity Stop Length 1 Bit Bits 7 Even Odd 1...

Page 55: ...programmable 2 255 sec Answer Tone Timeout 60 seconds Answer Tone Detector 2080 2120 Hz Loss of Carrier Disconnect Timer 0 7 second default programmable 0 2 25 5 sec Equalization Adaptive Receive Sensitivity 43 dBm 2 dBm Transmit Level 9 dBm maximum Transmitter Frequency Tolerance 01 Certification FCC Part 15 Class B Domestic IC Canada CS 03 UL listed Ringer Equivalence 0 4b ...

Page 56: ...d or subjected to abnormal working conditions REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PUR CHASER THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE AND U S ROBOTICS SHALL IN NO EVENT BE LIABLE TO PURCHASER FOR INDIRECT OR CONSEQUENTIAL DAMAGES O...

Page 57: ...nd copies if you are contacting us by mail Contacting U S Robotics Check the Corporate Systems Customer Support card that came with your Courier for information about how to contact us If the support representative determines that you should send your equipment to USR for service you will be given a Service Repair Order SRO number to help us keep track of your warranty request Once you have receiv...

Page 58: ...inst harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or ...

Page 59: ...rk protective operational and safety requirements The department does not guarantee the equipment will operate to a user s satisfaction Before installing this equipment make sure you are permitted to connect it to the facilities of the local telecommunications company You must also install the equipment using an acceptable method of connection In some cases you may also extend the company s inside...

Page 60: ... of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularly important in rural areas WARNING Do not attempt to make such connections yourself contact the appropriate electric inspection authority or electrician ...

Page 61: ...s getting information about 4 6 carrier loss redial feature 1 8 CD light 1 4 Chameleon 5 2 COM port 2 1 communications software 2 1 compression protocols B 2 CompuServe 5 7 contents of package 2 3 CS light 1 4 D data compression protocols B 2 DB 25 connectorError Bookmark not defined A 2 DB 9 connector A 2 dedicated line support 1 8 dialer 1 1 dialing protocols B 2 Dial Up Networking 3 3 digital t...

Page 62: ...ed line support 1 8 LEDs 1 3 appearance at power on 2 6 meanings of 1 4 lights appearance at power on 2 6 status 1 4 line quality 1 6 Linux 3 10 M Mac OS 3 7 Macintosh computers cabling A 3 communications 3 7 minicom 3 10 MR light 1 4 N NetManage Chameleon 5 2 notices C 3 O OH light 1 4 online command mode 4 6 online services 1 2 OS 2 3 6 P package contents 2 3 pcAnywhere 5 4 Plug and Play 1 8 Poi...

Page 63: ... SYN light 1 5 synchronous applications 1 8 3 10 T TCP IP 1 1 3 4 technical specifications B 1 testing the Courier 1 7 3 11 TR light 1 4 Trumpet Winsock 5 7 U U S Robotics BBS 3 11 contacting the writers iv UART 2 1 UNIX 3 10 V V protocols B 1 V 34 1 5 B 1 V Everything defined 1 6 verifying operation 3 11 Voice Data switch 1 3 4 2 volume control 1 3 4 1 W Warp 3 6 warranty C 1 Win CIM 5 7 Windows ...

Page 64: ...I 2 Courier V Everything External Modem Getting Started ...

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