User Guide
Page 5
... interference regulations of a certified connector assembly. Caution: Users should ensure that the compliance with the above conditions may not prevent degradation of service in some cases, the company's inside wiring associated with a single line individual service may be installed using an acceptable method of the power utility, telephone lines, and internal metallic water pipe system, if present, are connected together.
... interference regulations of a certified connector assembly. Caution: Users should ensure that the compliance with the above conditions may not prevent degradation of service in some cases, the company's inside wiring associated with a single line individual service may be installed using an acceptable method of the power utility, telephone lines, and internal metallic water pipe system, if present, are connected together.
User Guide
Page 10
... Modem Result Codes 19 Viewing S Register Values 19 Changing S Register Values 20 Non-Volatile Memory 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...
... Modem Result Codes 19 Viewing S Register Values 19 Changing S Register Values 20 Non-Volatile Memory 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...
User Guide
Page 13
... & 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 Serial Port...
... & 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 Serial Port...
User Guide
Page 24
... serial port of a DTE (computer/terminal). Power switch, turns the modem ON or OFF. • POWER JACK Input terminal for U-336S model. Use the supplied AC adapter for power. Modem Connection When you connect your reference. Connect your modem to operate and could result in Figure 2-5 U-336S Modem Connections. 10 Installation This adapter is supplied with this unit. Pin assignments are also listed in Chapter 12 Connector Pinouts for direct connection to the power line, make sure you can use the power adapter...
... serial port of a DTE (computer/terminal). Power switch, turns the modem ON or OFF. • POWER JACK Input terminal for U-336S model. Use the supplied AC adapter for power. Modem Connection When you connect your reference. Connect your modem to operate and could result in Figure 2-5 U-336S Modem Connections. 10 Installation This adapter is supplied with this unit. Pin assignments are also listed in Chapter 12 Connector Pinouts for direct connection to the power line, make sure you can use the power adapter...
User Guide
Page 25
Figure 2-6 U-336SA Modem Connections If a leased line is not used, simply leave the connection open. Your modem comes factory pre-set and allows you don't need to the AC power outlet. User configurations are no DIP switches or configuration settings that you need an AC adapter. Use the supplied power cord to connect your modem to worry about. Figure 2-5 U-336S Modem Connections For the U-336SA you to fully configure the modem from the LCD display. There are also Installation 11
Figure 2-6 U-336SA Modem Connections If a leased line is not used, simply leave the connection open. Your modem comes factory pre-set and allows you don't need to the AC power outlet. User configurations are no DIP switches or configuration settings that you need an AC adapter. Use the supplied power cord to connect your modem to worry about. Figure 2-5 U-336S Modem Connections For the U-336SA you to fully configure the modem from the LCD display. There are also Installation 11
User Guide
Page 36
... model. For every character (byte) received, it and if your serial port at the serial port. With this UART installed, you are equipped with the settings in serial port devices. The serial port is very commonly used in profile 'n', n=0 to 5; The UART 16450 is driven by interrupts. If your hardware allows it generates an interrupt. n=0 to 3: User profiles. Helpful Hints for up to the fact that disk-access interrupts...
... model. For every character (byte) received, it and if your serial port at the serial port. With this UART installed, you are equipped with the settings in serial port devices. The serial port is very commonly used in profile 'n', n=0 to 5; The UART 16450 is driven by interrupts. If your hardware allows it generates an interrupt. n=0 to 3: User profiles. Helpful Hints for up to the fact that disk-access interrupts...
User Guide
Page 37
... Echoes command characters. Default Modem Settings for PC's The U-336S/SA factory settings are used for operation with a ZyXEL modem, for example: The serial port is 16550-compatible for most cases, no additional settings will not occur when working with PC type computers and communication software. Modem disconnects on DTR on your PC, be required. Modem negotiates highest possible connection speed. This solves high-speed communication problems in your AUTOEXEC batch file. on -to enable the disk...
... Echoes command characters. Default Modem Settings for PC's The U-336S/SA factory settings are used for operation with a ZyXEL modem, for example: The serial port is 16550-compatible for most cases, no additional settings will not occur when working with PC type computers and communication software. Modem disconnects on DTR on your PC, be required. Modem negotiates highest possible connection speed. This solves high-speed communication problems in your AUTOEXEC batch file. on -to enable the disk...
User Guide
Page 38
... commercial software. The serial port on the Apple Macintosh. One program which can be installed like a printer driver allowing you may use the factory default settings with one exception. Type: AT&D0 (set the modem to increase communication program efficiency. You must set modem to ignore DTR) AT&WZ (saves the settings to power-up profile) Mac Serial Port When you connect your modem to make use of the hardware handshaking feature can be used on...
... commercial software. The serial port on the Apple Macintosh. One program which can be installed like a printer driver allowing you may use the factory default settings with one exception. Type: AT&D0 (set the modem to increase communication program efficiency. You must set modem to ignore DTR) AT&WZ (saves the settings to power-up profile) Mac Serial Port When you connect your modem to make use of the hardware handshaking feature can be used on...
User Guide
Page 39
... to disable carrier detection using the serial ports. These drivers are available which makes sure fax software does not interfere with your workstation to find the part number of the serial ports at speeds up the modem. Depending on your modem before you start your Macintosh. This program includes powerful line manager software which allow use of or information on how to make a serial cable for UNIX-Based Computers Serial Cable Please consult the documentation that...
... to disable carrier detection using the serial ports. These drivers are available which makes sure fax software does not interfere with your workstation to find the part number of the serial ports at speeds up the modem. Depending on your modem before you start your Macintosh. This program includes powerful line manager software which allow use of or information on how to make a serial cable for UNIX-Based Computers Serial Cable Please consult the documentation that...
User Guide
Page 43
A Answer mode on -line. R Redial last number. Left/Right arrow used for horizontal item selection and option keys selection. Up arrow key also called the MENU key, is blinking above one of these on -screen buttons: D Dialing operation with submenus. The modem also displays the current status and settings in the idle screen: Information Link Option Link Speed Error Control Data Compression Line Type Data Format DTE Speed ORG/Ans Example V34...
A Answer mode on -line. R Redial last number. Left/Right arrow used for horizontal item selection and option keys selection. Up arrow key also called the MENU key, is blinking above one of these on -screen buttons: D Dialing operation with submenus. The modem also displays the current status and settings in the idle screen: Information Link Option Link Speed Error Control Data Compression Line Type Data Format DTE Speed ORG/Ans Example V34...
User Guide
Page 50
...STATUS screen. If the time interval depicted in or not connected, the LCD screen will display the following screen to be displayed on the LCD: DIALING 1234567 The dialed phone number will be displayed. If the phone company is ringing the remote modem, a RINGING message is still not connected, the LCD screen shows: 36 LCD Panel Operation If the line...The modem will be displayed on the second line of the LCD screen. If the number exceeds 20 digits, only the first 20 digits/characters will then return to the IDLE STATUS screen. Setting S42.6 = 1 will disable this RINGING result code. ...
...STATUS screen. If the time interval depicted in or not connected, the LCD screen will display the following screen to be displayed on the LCD: DIALING 1234567 The dialed phone number will be displayed. If the phone company is ringing the remote modem, a RINGING message is still not connected, the LCD screen shows: 36 LCD Panel Operation If the line...The modem will be displayed on the second line of the LCD screen. If the number exceeds 20 digits, only the first 20 digits/characters will then return to the IDLE STATUS screen. Setting S42.6 = 1 will disable this RINGING result code. ...
User Guide
Page 68
...) on -line condition. The connection speed and mode do not matter. Check your local phone company. only work in one of phone service that may be set to the called Caller ID, is sent once between the first and second rings. The remote profile read and write commands - *Rab and *Wab - The modem will send the coded caller information to accept remote configuration by activating the remote configuration once.
...) on -line condition. The connection speed and mode do not matter. Check your local phone company. only work in one of phone service that may be set to the called Caller ID, is sent once between the first and second rings. The remote profile read and write commands - *Rab and *Wab - The modem will send the coded caller information to accept remote configuration by activating the remote configuration once.
User Guide
Page 78
... the modem works as a fax machine. Also covered are the status report result codes, the flow control protocol associated with such software, refer to bitmapped image data, and prints it on the software disk. 7 Fax Operation The U-336S/SA can be used as a fax machine, the ITU-T T.30 fax protocol, the Class 1,2, and 2.0 fax commands and ZyXEL extended fax AT commands. The remote facsimile...
... the modem works as a fax machine. Also covered are the status report result codes, the flow control protocol associated with such software, refer to bitmapped image data, and prints it on the software disk. 7 Fax Operation The U-336S/SA can be used as a fax machine, the ITU-T T.30 fax protocol, the Class 1,2, and 2.0 fax commands and ZyXEL extended fax AT commands. The remote facsimile...
User Guide
Page 98
... or timeout. n = 0 or 1. n = 0, 1, or 2. n = 0 to establish a fax connection. See below . Vertical resolution; Other party's phone line is successfully established, the modem returns this message: CONNECT FAX/SnnnnVnTnRnLnCnP This message includes the connection speed and the fax parameters explained in fax mode, each ATD or ATA command will send a status report result code back to dial but no carrier is a 4-digit number representing the connection speed. Coding...
... or timeout. n = 0 or 1. n = 0, 1, or 2. n = 0 to establish a fax connection. See below . Vertical resolution; Other party's phone line is successfully established, the modem returns this message: CONNECT FAX/SnnnnVnTnRnLnCnP This message includes the connection speed and the fax parameters explained in fax mode, each ATD or ATA command will send a status report result code back to dial but no carrier is a 4-digit number representing the connection speed. Coding...
User Guide
Page 100
... at this moment. Add the string #B1+FCLASS=6 to the DTE if RTS is used when receiving fax. • RTS is turned off CD then send a status report result code to CONNECT FAX. 3. Set the external mail string to receive a fax and store it an error level. 4. In your modem will turn off . The modem will enable the BBS to ZyXEL and give it...
... at this moment. Add the string #B1+FCLASS=6 to the DTE if RTS is used when receiving fax. • RTS is turned off CD then send a status report result code to CONNECT FAX. 3. Set the external mail string to receive a fax and store it an error level. 4. In your modem will turn off . The modem will enable the BBS to ZyXEL and give it...
User Guide
Page 135
... the modem dial the default number and DTR OFF will not dial any number when DTR changes from ON to OFF S49= bit dec hex Bit-mapped register +006 3-0 0-15 0-F Set cellular mode transmit power level -9 to -24 dBm. (See also S43b2) 7 0 0 For cellular mode only. When the modem is installed in or out of the RS- 232 serial port. Modem is connected to profile 0. Command...
... the modem dial the default number and DTR OFF will not dial any number when DTR changes from ON to OFF S49= bit dec hex Bit-mapped register +006 3-0 0-15 0-F Set cellular mode transmit power level -9 to -24 dBm. (See also S43b2) 7 0 0 For cellular mode only. When the modem is installed in or out of the RS- 232 serial port. Modem is connected to profile 0. Command...
User Guide
Page 143
... FIAL... default settings will be downloaded to the EEPROM and the self-test will restart the power-on again. FAIL.... If an error message is not a real error. 4 DSP RAM FIAL... System RAM fails. 3 LOADING EEPROM checksum error. If the normal IDLE SCREEN shows up, the original failure was due to ZyXEL. The factory DEFAULTS. If the error condition persists, call the ZyXEL Service Center for...
... FIAL... default settings will be downloaded to the EEPROM and the self-test will restart the power-on again. FAIL.... If an error message is not a real error. 4 DSP RAM FIAL... System RAM fails. 3 LOADING EEPROM checksum error. If the normal IDLE SCREEN shows up, the original failure was due to ZyXEL. The factory DEFAULTS. If the error condition persists, call the ZyXEL Service Center for...
User Guide
Page 151
... communications software is ON. With the modem in command state, type ATS0=1 and press Enter to enable modem echo, or turn off auto-answer, unless your modem's LINE jack and not the PHONE jack. 2. Neither your modem nor your computer screen. Solutions 1. Answer Problems Problem Your modem does not auto-answer incoming calls. Diagnostics & Troubleshooting 137 Solutions 1. Make sure the DTR LED is configured to disable modem echo, or turn on...
... communications software is ON. With the modem in command state, type ATS0=1 and press Enter to enable modem echo, or turn off auto-answer, unless your modem's LINE jack and not the PHONE jack. 2. Neither your modem nor your computer screen. Solutions 1. Answer Problems Problem Your modem does not auto-answer incoming calls. Diagnostics & Troubleshooting 137 Solutions 1. Make sure the DTR LED is configured to disable modem echo, or turn on...
User Guide
Page 154
... bytes data with the latest firmware. 9. Type ATUPX. 6. When the installation is complete, the modem restarts automatically. 140 Upgrading Your Modem See Contacting ZyXEL on your modem. Press Enter and wait for the FTP address. 2. Data in Flash ROM will be erased!!! Turn on your modem. 11 Upgrading Your Modem Upgrading by downloading from the ZyXEL BBS, WWW or FTP site. After the "§" prompt, use the XModem protocol to...
... bytes data with the latest firmware. 9. Type ATUPX. 6. When the installation is complete, the modem restarts automatically. 140 Upgrading Your Modem See Contacting ZyXEL on your modem. Press Enter and wait for the FTP address. 2. Data in Flash ROM will be erased!!! Turn on your modem. 11 Upgrading Your Modem Upgrading by downloading from the ZyXEL BBS, WWW or FTP site. After the "§" prompt, use the XModem protocol to...
User Guide
Page 155
... button after upgrading the flash EPROM: 1. A Kernel Program responsible for repair. Kernel Recovery Mode Your modem is equipped with ZyXEL's exclusive Kernel Recovery Mode. Turn off the modem. 2. Repeat steps 1 through 9 from failed flash uploads. In the unlikely event that contains the valid firmware for your modem fails to respond to AT commands after 5 seconds. This unique feature enables quick recovery from the previous directions above to the factory for the update process takes control...
... button after upgrading the flash EPROM: 1. A Kernel Program responsible for repair. Kernel Recovery Mode Your modem is equipped with ZyXEL's exclusive Kernel Recovery Mode. Turn off the modem. 2. Repeat steps 1 through 9 from failed flash uploads. In the unlikely event that contains the valid firmware for your modem fails to respond to AT commands after 5 seconds. This unique feature enables quick recovery from the previous directions above to the factory for the update process takes control...