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Contents ZyXEL Limited Warranty ii FCC Part 15 Information iii Information for Canadian Users iv Contacting ZyXEL vi 1 Introduction 1 Required Equipment 1 Modem Features 2 Standard Features 2 Intelligent Features 3 Fax Compatibility 4 Technical Specifications 4 2 Installation 7 Front Panel 7 Front Panel LEDs 8 Front Panel Switches 9 Rear Panel Markings 9 Modem Connection 10 Powering Up 12 3 Basic Modem Operation 13 Understanding AT Commands 13 Using the Windows 95 Hyper Terminal Program 14 Dialing and Answering Techniques 15 Dialing using the ATD Command 15 ix
Contents ZyXEL Limited Warranty ii FCC Part 15 Information iii Information for Canadian Users iv Contacting ZyXEL vi 1 Introduction 1 Required Equipment 1 Modem Features 2 Standard Features 2 Intelligent Features 3 Fax Compatibility 4 Technical Specifications 4 2 Installation 7 Front Panel 7 Front Panel LEDs 8 Front Panel Switches 9 Rear Panel Markings 9 Modem Connection 10 Powering Up 12 3 Basic Modem Operation 13 Understanding AT Commands 13 Using the Windows 95 Hyper Terminal Program 14 Dialing and Answering Techniques 15 Dialing using the ATD Command 15 ix
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... 20 Storing Phone Numbers 21 Dialing Stored Phone Numbers 21 Saving Settings and User Profiles 21 Helpful Hints for PC Computers 22 Default Modem Settings for PC's 23 ZyXEL Serial/Parallel I/O Card 23 Helpful Hints for Mac Computers 24 Special AT Command Settings for Mac 24 Mac Serial Port 24 Mac Software... Tips 24 Helpful Hints for UNIX-Based Computers 25 Serial Cable 25 Basic Modem Settings for UNIX 25 Unix Software Tips 26 4 LCD Panel ...
... 20 Storing Phone Numbers 21 Dialing Stored Phone Numbers 21 Saving Settings and User Profiles 21 Helpful Hints for PC Computers 22 Default Modem Settings for PC's 23 ZyXEL Serial/Parallel I/O Card 23 Helpful Hints for Mac Computers 24 Special AT Command Settings for Mac 24 Mac Serial Port 24 Mac Software... Tips 24 Helpful Hints for UNIX-Based Computers 25 Serial Cable 25 Basic Modem Settings for UNIX 25 Unix Software Tips 26 4 LCD Panel ...
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Extended Distinctive Ring (EDR) 59 Setting Up EDR 60 EDR Application Example 61 7 Fax Operation 64 Fax Basics 64 Modem as Fax Machine 65 ITU-T T.30 Fax Protocol 65 Fax Command sets 66 Defining the Fax Command Sets 66 Class 1 Command Set 67 Class 2 Command ...
Extended Distinctive Ring (EDR) 59 Setting Up EDR 60 EDR Application Example 61 7 Fax Operation 64 Fax Basics 64 Modem as Fax Machine 65 ITU-T T.30 Fax Protocol 65 Fax Command sets 66 Defining the Fax Command Sets 66 Class 1 Command Set 67 Class 2 Command ...
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Connect Strings for Error Corrected Connections 127 10 Diagnostics & Troubleshooting 128 Diagnostics 128 Power-On Self Test 128 Resetting The Modem 129 Loopback Tests 130 Indicator Lights 132 Line Condition Status Display 132 Trouble Shooting 135 AT Command Set Problems 135 Command Echo ...Problems 136 Answer Problems 137 Dialing Problems 138 Data Transfer Problems 138 Connection Problems 139 11 Upgrading Your Modem 140 Upgrading by Flash EPROM 140 Kernel Recovery Mode 141 12 Connector Pinouts 142 Phone Jack Pinouts 142 PC Serial Port Pinouts 142 Macintosh...
Connect Strings for Error Corrected Connections 127 10 Diagnostics & Troubleshooting 128 Diagnostics 128 Power-On Self Test 128 Resetting The Modem 129 Loopback Tests 130 Indicator Lights 132 Line Condition Status Display 132 Trouble Shooting 135 AT Command Set Problems 135 Command Echo ...Problems 136 Answer Problems 137 Dialing Problems 138 Data Transfer Problems 138 Connection Problems 139 11 Upgrading Your Modem 140 Upgrading by Flash EPROM 140 Kernel Recovery Mode 141 12 Connector Pinouts 142 Phone Jack Pinouts 142 PC Serial Port Pinouts 142 Macintosh...
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... your User's Manual, please call ZyXEL Technical Support at 714-693-0808. one of both the models except for different input terminal. Other means of your U-336S/SA modem - Introduction 1 Required Equipment In addition to the ZyXEL modem you just purchased, you would like... more information about a topic covered in the Contacting ZyXEL section. The U-336S modem requires an AC power adapter whereas the U-336SA...
... your User's Manual, please call ZyXEL Technical Support at 714-693-0808. one of both the models except for different input terminal. Other means of your U-336S/SA modem - Introduction 1 Required Equipment In addition to the ZyXEL modem you just purchased, you would like... more information about a topic covered in the Contacting ZyXEL section. The U-336S modem requires an AC power adapter whereas the U-336SA...
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.... • V.42bis and MNP 5 data compression. • DTE serial interface with an array of standard and ZyXEL-famous Intelligent features designed to 460.8Kbps. • 20 x 2 LCD display. • 10 LED indicators. 2 Introduction Modem Features No other 33.6 Kbps modem gives you so much for so little. Standard Features • Ultra-high speed...
.... • V.42bis and MNP 5 data compression. • DTE serial interface with an array of standard and ZyXEL-famous Intelligent features designed to 460.8Kbps. • 20 x 2 LCD display. • 10 LED indicators. 2 Introduction Modem Features No other 33.6 Kbps modem gives you so much for so little. Standard Features • Ultra-high speed...
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... automatically fall back to lower speeds when communicating with slower modems and when encountering unstable or variable line conditions. • Call-back security and password protection restricts access to authorized callers only. • Caller ID ... data and voice call detection allows you to use a single telephone line to handle both types of calls. • Asynchronous and synchronous modes for your modem to identify callers). • Distinctive ring detects data and voice calls (this feature requires communication software that supports distinctive ring, such as ZFAX) • ...
... automatically fall back to lower speeds when communicating with slower modems and when encountering unstable or variable line conditions. • Call-back security and password protection restricts access to authorized callers only. • Caller ID ... data and voice call detection allows you to use a single telephone line to handle both types of calls. • Asynchronous and synchronous modes for your modem to identify callers). • Distinctive ring detects data and voice calls (this feature requires communication software that supports distinctive ring, such as ZFAX) • ...
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...x 2 LCD display, and four key switches. The following figure shows the front panel of the U-336SA modem. 2 Installation This chapter describes the panel function and installation procedure for the U-336S/SA. Installation 7 Make sure your ZyXEL modem located on the sides and bottom should not be covered and should allow free movement of the.... The ventilation slot of your installation site is the responsibility of air. Figure 2-1 Front Panel The next figure shows the front panel of the U-336S. A shielded RS-232 cable is required to provide and use a shielded RS-232 cable.
...x 2 LCD display, and four key switches. The following figure shows the front panel of the U-336SA modem. 2 Installation This chapter describes the panel function and installation procedure for the U-336S/SA. Installation 7 Make sure your ZyXEL modem located on the sides and bottom should not be covered and should allow free movement of the.... The ventilation slot of your installation site is the responsibility of air. Figure 2-1 Front Panel The next figure shows the front panel of the U-336S. A shielded RS-232 cable is required to provide and use a shielded RS-232 cable.
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... used for communication. In error control mode, it is ready to begin communication. RXD Receive indicator, ON when your modem is in the Auto Answer Mode; OH Off-Hook indicator, lights up when your modem is in talk mode or on the line. AA Auto-Answer indicator, lights up when your... when a valid carrier is detected present on -hook. lights up when the modem is ready for hardware flow control in data mode or off-hook. flashes when modem rings. DTR Data Terminal Ready indicator, lights up when your modem is turned ON. CD Carrier Detect indicator; It goes out when your DTE...
... used for communication. In error control mode, it is ready to begin communication. RXD Receive indicator, ON when your modem is in the Auto Answer Mode; OH Off-Hook indicator, lights up when your modem is in talk mode or on the line. AA Auto-Answer indicator, lights up when your... when a valid carrier is detected present on -hook. lights up when the modem is ready for hardware flow control in data mode or off-hook. flashes when modem rings. DTR Data Terminal Ready indicator, lights up when your modem is turned ON. CD Carrier Detect indicator; It goes out when your DTE...
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... menu tree operation and display modem status. Refer to Panel Operstion section in the Chapter LCD Panel Operation for details of RS232 signal CTS. CTS DTE mode: Clear To Send indicator; Front Panel Switches The four arrow keys are given below : Figure 2-3 U-336S Rear Panel Figure 2-4 U-336SA... Rear Panel Explanations of the connectors and switch on the rear panel are for transmission. It indicates the signal status of menu key operations. Rear Panel Markings The U-336S/SA rear panels are shown below . •...
... menu tree operation and display modem status. Refer to Panel Operstion section in the Chapter LCD Panel Operation for details of RS232 signal CTS. CTS DTE mode: Clear To Send indicator; Front Panel Switches The four arrow keys are given below : Figure 2-3 U-336S Rear Panel Figure 2-4 U-336SA... Rear Panel Explanations of the connectors and switch on the rear panel are for transmission. It indicates the signal status of menu key operations. Rear Panel Markings The U-336S/SA rear panels are shown below . •...
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...another adapter may not allow your reference. Connect your U-336S modem to the power line, make sure you connect your modem as shown in Chapter 12 Connector Pinouts for U-336S model. Use the supplied AC adapter for your modem to operate and could result in Chapter 12 Connector Pinouts... for connection to a telephone set. • EIA-232D Serial port DB25S connector, for RJ-11 phone jacks are listed in Figure 2-5 U-336S Modem Connections. 10 Installation Pin assignments are also listed in serious damage to the unit. This adapter is supplied with this unit. Use of a DTE...
...another adapter may not allow your reference. Connect your U-336S modem to the power line, make sure you connect your modem as shown in Chapter 12 Connector Pinouts for U-336S model. Use the supplied AC adapter for your modem to operate and could result in Chapter 12 Connector Pinouts... for connection to a telephone set. • EIA-232D Serial port DB25S connector, for RJ-11 phone jacks are listed in Figure 2-5 U-336S Modem Connections. 10 Installation Pin assignments are also listed in serious damage to the unit. This adapter is supplied with this unit. Use of a DTE...
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Figure 2-5 U-336S Modem Connections For the U-336SA you don't need to worry about. Your modem comes factory pre-set and allows you need an AC adapter. Figure 2-6 U-336SA Modem Connections If a leased line is not used, simply leave the connection open. Use the supplied power cord to connect your modem to fully configure the modem from the LCD display. User configurations are no DIP switches or configuration settings that you to the AC power outlet. There are also Installation 11
Figure 2-5 U-336S Modem Connections For the U-336SA you don't need to worry about. Your modem comes factory pre-set and allows you need an AC adapter. Figure 2-6 U-336SA Modem Connections If a leased line is not used, simply leave the connection open. Use the supplied power cord to connect your modem to fully configure the modem from the LCD display. User configurations are no DIP switches or configuration settings that you to the AC power outlet. There are also Installation 11
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... FORMAT DTE RATE ANSWER MODE ORIGINATE MODE REDIAL LAST NUMBER DIALING 12 Installation After performing the diagnostic tests, your modem's power switch is turned ON, a series of these diagnostic tests, please refer to Chapter 10 Diagnostics & Troubleshooting. Powering Up Once your... modem will be recalled as often as shown below: Your modem is shown on the LCD panel as needed. For a more detailed description of diagnostic tests will display the current modem settings on the LCD panel. conveniently stored in user...
... FORMAT DTE RATE ANSWER MODE ORIGINATE MODE REDIAL LAST NUMBER DIALING 12 Installation After performing the diagnostic tests, your modem's power switch is turned ON, a series of these diagnostic tests, please refer to Chapter 10 Diagnostics & Troubleshooting. Powering Up Once your... modem will be recalled as often as shown below: Your modem is shown on the LCD panel as needed. For a more detailed description of diagnostic tests will display the current modem settings on the LCD panel. conveniently stored in user...
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... in order to get up and running with communication software, and to start making connections with another modem it is then followed by your modem. Understanding AT Commands The U-336S/SA communicates asynchronously with the letters AT or at. A command statement always begins with computers using AT... commands. It is said to be issued when your computer are usually sent to the modem by the user with ...
... in order to get up and running with communication software, and to start making connections with another modem it is then followed by your modem. Understanding AT Commands The U-336S/SA communicates asynchronously with the letters AT or at. A command statement always begins with computers using AT... commands. It is said to be issued when your computer are usually sent to the modem by the user with ...
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... 8 None 1 Hardware Click "OK" when finished. Next, you will prompt you for a name and Icon to your Hyper Terminal folder. 14 Basic Modem Operation The next window sets the COM port settings. The program will be as follows. For this , save your new connection by selecting "Save" from... the "Connect Using" list. simply choose the COM port your modem, or store commonly used to your computer's serial port and telephone line, open the Windows 95 "Accessories" program group, and open the Hyper Terminal...
... 8 None 1 Hardware Click "OK" when finished. Next, you will prompt you for a name and Icon to your Hyper Terminal folder. 14 Basic Modem Operation The next window sets the COM port settings. The program will be as follows. For this , save your new connection by selecting "Save" from... the "Connect Using" list. simply choose the COM port your modem, or store commonly used to your computer's serial port and telephone line, open the Windows 95 "Accessories" program group, and open the Hyper Terminal...
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...the phone line, and try to answer an incoming call made from the "Call" menu. In the terminal window, type: AT Your modem responds OK This confirms that the modem and your computer are shown in bold type. To test the telephone line connection issue the manual answer command. Type: ATA Your...hear from the speaker. Normally, this command is only used to communicate. To abort the operation, press any key, or select "Disconnect" from another modem, thus the high pitched tone you may not have as much control of the AT commands used for dialing and answering operations. Dialing using the ...
...the phone line, and try to answer an incoming call made from the "Call" menu. In the terminal window, type: AT Your modem responds OK This confirms that the modem and your computer are shown in bold type. To test the telephone line connection issue the manual answer command. Type: ATA Your...hear from the speaker. Normally, this command is only used to communicate. To abort the operation, press any key, or select "Disconnect" from another modem, thus the high pitched tone you may not have as much control of the AT commands used for dialing and answering operations. Dialing using the ...
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Disabling Auto-Answer: ATS0=0 Manually Answering a Call: ATA Take modem off-hook: ATH1 Hang up modem (on-hook): ATH0 Manually Disconnecting a Call: +++ATH 16 Basic Modem Operation Pausing During Dialing: ATDT 9,,555 1212 THE PAUSE TIME FOR EACH COMMA IS DEFINED BY S REGISTER S8. DEFAULT IS 2 SECONDS PER ...Tone and Pulse Dialing: ATDP 555 1212 WT 24 Dialing Through a PBX: ATDT 9 W 555 1212 THE 'W' IN THE DIAL STRING WILL CAUSE THE MODEM TO WAIT FOR A SECOND DIAL TONE BEFORE IT CONTINUES TO DIAL. Dialing Without Waiting for Dial Tone: ATX0D, 555 1212 Originating a call using an...
Disabling Auto-Answer: ATS0=0 Manually Answering a Call: ATA Take modem off-hook: ATH1 Hang up modem (on-hook): ATH0 Manually Disconnecting a Call: +++ATH 16 Basic Modem Operation Pausing During Dialing: ATDT 9,,555 1212 THE PAUSE TIME FOR EACH COMMA IS DEFINED BY S REGISTER S8. DEFAULT IS 2 SECONDS PER ...Tone and Pulse Dialing: ATDP 555 1212 WT 24 Dialing Through a PBX: ATDT 9 W 555 1212 THE 'W' IN THE DIAL STRING WILL CAUSE THE MODEM TO WAIT FOR A SECOND DIAL TONE BEFORE IT CONTINUES TO DIAL. Dialing Without Waiting for Dial Tone: ATX0D, 555 1212 Originating a call using an...
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.... • If you see no characters in your terminal window when you type, your modem and software both "verbose" result codes (i.e. "0"). To eliminate the double characters, turn off . Your modem supports both have their "echo" feature turned on using the ATE0 command. If you see... duplicated characters for each one you type, the modem's echo setting is successfully issued and accepted, a modem responds with a "Result Code." In this case, issue the ATE1 command. • When a command is probably set ...
.... • If you see no characters in your terminal window when you type, your modem and software both "verbose" result codes (i.e. "0"). To eliminate the double characters, turn off . Your modem supports both have their "echo" feature turned on using the ATE0 command. If you see... duplicated characters for each one you type, the modem's echo setting is successfully issued and accepted, a modem responds with a "Result Code." In this case, issue the ATE1 command. • When a command is probably set ...
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... inquiry command Example ATB0 AT$ AT&N0 AT*I1 AT+FCLASS=2 ATS0=1 ATS13.1=1 ATS0? Entered while the modem is made. Returns modem to their use. 18 Basic Modem Operation The U-336S/SA supports several groups of available commands for each command set by using the on line help commands: AT... Mode. These are a few basic commands that pertain to Command Mode. Terminates the current connection attempt, if pressed while modem is handshaking. Escape code sequence. There are as follows: Command A/ A> +++ Description Repeats the last issued AT command once. Or ATS13.1?
... inquiry command Example ATB0 AT$ AT&N0 AT*I1 AT+FCLASS=2 ATS0=1 ATS13.1=1 ATS0? Entered while the modem is made. Returns modem to their use. 18 Basic Modem Operation The U-336S/SA supports several groups of available commands for each command set by using the on line help commands: AT... Mode. These are a few basic commands that pertain to Command Mode. Terminates the current connection attempt, if pressed while modem is handshaking. Escape code sequence. There are as follows: Command A/ A> +++ Description Repeats the last issued AT command once. Or ATS13.1?
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The U-336S/SA also provides result codes that determine the modem's operating characteristics. By default, your modem, you sent was executed. Modem Result Codes When you execute or try to execute an AT command, your modem sends a result code to the ATX5 command. The ATXn command lets you know whether the... the command was detected when dialing. • The speed, protocol, and error control/data compression method used. • If your modem has detected an incoming ring. The result code options will be covered more thoroughly in later chapters. Result codes can originate from any ...
The U-336S/SA also provides result codes that determine the modem's operating characteristics. By default, your modem, you sent was executed. Modem Result Codes When you execute or try to execute an AT command, your modem sends a result code to the ATX5 command. The ATXn command lets you know whether the... the command was detected when dialing. • The speed, protocol, and error control/data compression method used. • If your modem has detected an incoming ring. The result code options will be covered more thoroughly in later chapters. Result codes can originate from any ...