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Popular ZyXEL U-336R Manual Pages
User Guide - Page 5
Repairs to certified equipment should be aware that the electrical ground connections of service... ensure that the compliance with a single line individual service may be installed using an acceptable method of Industry Canada. For their...exceed the class A limits for U-336S model. The equipment must also be extended by the supplier. Any repairs or alterations made by an authorized ...
User Guide - Page 7
.... 1650 Miraloma Avenue Placentia, CA92870, U.S.A.
support@zyxel.com.tw outside North America.
• Technical support: support@zyxel.com in North America sales@zyxel.com.tw outside North America.
• Product information: Visit our site on the World Wide Web: http://www.zyxel.com.
• FTP: Information , such as ZyXEL software and ROM updates for North America can be found...
User Guide - Page 13
... 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...
User Guide - Page 15
... clear, quality connections while communicating around the globe. This User's Guide describes the use of both the models except for their installation and operation. Other means of contacting ZyXEL are listed in your User's Manual, please call ZyXEL Technical Support at 714-693-0808. 1 Introduction
Congratulations on a specific topic, or if you would like more information about a topic...
User Guide - Page 16
... speed modem supports V.34bis for 33,600bps and is equipped with speeds up to make your telephone company (dial-up or leased
line).
• Data and fax communication software.
Modem Features
No other 33.6 Kbps modem gives you so much for so little. • One AC power adapter (external model) for U336S modem...
User Guide - Page 17
... security and password protection restricts access to authorized callers only.
• Caller ID identifies incoming calls before you answer (you must subscribe to this service through your...software that supports distinctive ring, such as ZFAX)
• Remote configuration capability.
• EDR (extended Distinctive Ring).
• Flash EPROM memory lets you easily upload new firmware, providing ...
User Guide - Page 50
...before the connection is busy, after three to five seconds, the LCD displays: BUSY 1234567
The modem will then return to the terminal. Setting S42.6 = 1 will be displayed. If any key interruption occurs (from the terminal or panel) and breaks in or not connected, .../characters will be displayed on the LCD: DIALING 1234567
The dialed phone number will disable this RINGING result code.
User Guide - Page 71
...IS SUPPORTED BEFORE USING THE CALLER ID FEATURE. The phone company will cause the modem to report CND information in its
ASCII coded hexadecimal raw data format. One benefit of this service, .... FOR MOST OTHER CALLER ID SCHEMES, ONLY THE CALLER TELEPHONE NUMBER IS PROVIDED.
O NOTE:
Setting S48.0=1 will send a different type of ring signal for each phone number being called by which...
User Guide - Page 88
... control are enabled. Read the current setting. Supported Commands
Command
Value
+FAA=n
n=0
n=1
+FBO=n n=0 n=1
Description Auto-answer mode parameter: DCE answers as set a parameter. Class 2 Flow Control... response. Receive page transfer status response; Read permissible settings. Remote polling indication.
Transition to the line signaling rate while transmitting or receiving...
User Guide - Page 100
...B1+FCLASS=6 to ZyXEL and give it automatically. The following set-up changes in the list to receive faxes on the same phone line. Fax Reception from a BBS
The U-336S/SA can automatically ... . In your BBS to receive a fax and store it an error level. 4.
Be sure the
+FCLASS=6 command is a sample setting for the FrontDoor system.
86 Fax Operation automatically, handshakes the multi-...
User Guide - Page 107
...
Reason
Carrier Lost
On-Line (Not
disconnected)
Resent Expiration Protocol Error
AT Command Set Summaries 93
Retrains Granted The number of times local modem requested
Requested
retrain.
FCS Errors
Errors in frame (block) checksum. (If there were
many blocks resent, you may have experienced
problems on the line.)
Round Trip
Time (Units 1/2400 sec.)
Delay...
User Guide - Page 143
... assistance, or follow the return procedure to return the modem to ZyXEL. If an error message is not a real error.
4 DSP RAM FIAL... default settings will restart the power-on again. FAIL...
7 VR CALIBRATION Analog circuit calibration error. If the error condition persists, call the ZyXEL Service Center for at least 10 seconds, and then turn the power...
User Guide - Page 149
..., followed by likely solutions.
Trouble Shooting
Your modem is ON. If it is OFF, make sure your modem.
2. AT Command Set Problems
Problem
Your modem does not respond to execute AT commands. Make sure the DTR LED is using the same COM port as your communications software is ON. Diagnostics & Troubleshooting 135 This section provides...
User Guide - Page 152
... frequent errors during data transfers.
138 Diagnostics & Troubleshooting Solutions
• Make sure the supplied telephone cable is not ready.
Solution
Your modem may be configured for auto-answering.
Set &Dφ... to your ZyXEL Modem Reference Manual.
4. 3.
Dialing Problems
Problem
Your modem does not dial calls. Data Transfer Problems
Problem
You can make a data connection with ...
User Guide - Page 161
... Functions, 49 Levels, 49
User Passwords, 50 SMARTDRV, 22 S-register, 19, 20, 40, 44, 57, 59, 89,
103, 121 Storing a Number, 31 Synchronous operation, 40
Auto-Answer, 44 Technical Specifications, 4 Timing clock, 42 Trouble Shooting
Answer Problems, 134 AT Command Set Problems, 131 Command Echo Problems, 133 Connection Problems, 135 Data Transfer Problems, 135 Dialing Problems, 134 UART 16450, 22...
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