User Guide
Page 59
... both sides will try MNP4. ZyXEL modems support level 4 and 3 error control protocols, commonly denoted as the received CRC, everything is a newly developed standard by a start and stop 'framing' bits in the U-1496 series is asynchronous. V.42 handshake will try an LAPM connection first... converts asynchronous characters to the modem on techniques utilized by both LAPM (Link Access Procedure for error(s). 3. The maximum data block size used on modem to Synchronous Conversion Error control function can detect and recover almost 100% of blocks 16 through a polynomial function is...
... both sides will try MNP4. ZyXEL modems support level 4 and 3 error control protocols, commonly denoted as the received CRC, everything is a newly developed standard by a start and stop 'framing' bits in the U-1496 series is asynchronous. V.42 handshake will try an LAPM connection first... converts asynchronous characters to the modem on techniques utilized by both LAPM (Link Access Procedure for error(s). 3. The maximum data block size used on modem to Synchronous Conversion Error control function can detect and recover almost 100% of blocks 16 through a polynomial function is...
User Guide
Page 60
.... String Coding Instead of predictability, like an ASCII English text file, graphic file, or database file, is sent. U-1496 series modems support a dictionary size up to recover the actual data from a dynamic tabulation of which only the first 32 tokens are some cases it can... the longest matched string. In general, it is applied in efficiency. DATA COMPRESSION Data compression works by reversing the `representing' process. U-1496 series modems support both algorithm and data dependent. A random data file is about 50% better in an attempt to send fewer than 8...
.... String Coding Instead of predictability, like an ASCII English text file, graphic file, or database file, is sent. U-1496 series modems support a dictionary size up to recover the actual data from a dynamic tabulation of which only the first 32 tokens are some cases it can... the longest matched string. In general, it is applied in efficiency. DATA COMPRESSION Data compression works by reversing the `representing' process. U-1496 series modems support both algorithm and data dependent. A random data file is about 50% better in an attempt to send fewer than 8...
User Guide
Page 61
...sending characters to 76800 bps. ZyXEL U-1496 series modems use some applications, like BBSs, where transmission of the modem controller CPU's computation power. DISCONNECT AT*E1 If not error control linked, disconnect the line. ADAPTIVE BLOCK SIZE Depending on how fast your ...V.42 or MNP4 V.42bis or MNP5 &4K is optimized for your application depends on the line condition, ZyXEL U-1496 series modems will automatically adjust the block size to lose characters. Bidirectional compression Processing data compression consumes a lot of already compressed files is enabled, DTE ...
...sending characters to 76800 bps. ZyXEL U-1496 series modems use some applications, like BBSs, where transmission of the modem controller CPU's computation power. DISCONNECT AT*E1 If not error control linked, disconnect the line. ADAPTIVE BLOCK SIZE Depending on how fast your ...V.42 or MNP4 V.42bis or MNP5 &4K is optimized for your application depends on the line condition, ZyXEL U-1496 series modems will automatically adjust the block size to lose characters. Bidirectional compression Processing data compression consumes a lot of already compressed files is enabled, DTE ...
User Guide
Page 73
...and goes into another cell, it will respond with a distant cell's radio communication using the same frequency. This is portable in size and capable of hand-off, the radio link, hence the modem carrier, will be strong, weak or totally vanished. A normal ... site radio station maintaining a radio link with a special communication mode - A particularly difficult cellular impairment for a modem signal. CELLULAR MODE OPERATION ZyXEL U-1496 series modems are good for voice, but it is called multipath fading. Fading will happen. A modem signal, if too strong, may be instructed...
...and goes into another cell, it will respond with a distant cell's radio communication using the same frequency. This is portable in size and capable of hand-off, the radio link, hence the modem carrier, will be strong, weak or totally vanished. A normal ... site radio station maintaining a radio link with a special communication mode - A particularly difficult cellular impairment for a modem signal. CELLULAR MODE OPERATION ZyXEL U-1496 series modems are good for voice, but it is called multipath fading. Fading will happen. A modem signal, if too strong, may be instructed...
User Guide
Page 103
...modem. FCS (Frame Check Sum) Errors (FE) The count of chars count to see the summary, as in the following sample: ZyXEL U-MODEM LINK STATUS REPORT Chars Sent 2420 Chars Received2420 Octets Sent 950 Octets Received 950 Blocks Sent 13 Blocks Received 13 Blocks Resent 0... Max Outstanding 8 Max Block Size 256 Retrain Requested 0 Link Duration 1 Retrain Granted0 T401 Timeouts 0 T402 Timeouts 0 FCS Errors 0 Round Trip Delay 110 Xmitter Underrun 0 ...
...modem. FCS (Frame Check Sum) Errors (FE) The count of chars count to see the summary, as in the following sample: ZyXEL U-MODEM LINK STATUS REPORT Chars Sent 2420 Chars Received2420 Octets Sent 950 Octets Received 950 Blocks Sent 13 Blocks Received 13 Blocks Resent 0... Max Outstanding 8 Max Block Size 256 Retrain Requested 0 Link Duration 1 Retrain Granted0 T401 Timeouts 0 T402 Timeouts 0 FCS Errors 0 Round Trip Delay 110 Xmitter Underrun 0 ...
User Guide
Page 104
... count when modem is a bad receiving indication. Blocks Resent Number of blocks resent because of times retrains requested by remote modem were granted. Actual block size can be a bad line or protocol incompatibility. Octets Received Data bytes received from remote modem. Data bytes sent to transmit or receive. T401 Timeouts and... T402 Timeouts They are for manufacturer checking link layer operation. Link Duration Connection time in a block. Blocks Sent Blocks sent to remote modem. Max Block Size Error control protocol parameter.
... count when modem is a bad receiving indication. Blocks Resent Number of blocks resent because of times retrains requested by remote modem were granted. Actual block size can be a bad line or protocol incompatibility. Octets Received Data bytes received from remote modem. Data bytes sent to transmit or receive. T401 Timeouts and... T402 Timeouts They are for manufacturer checking link layer operation. Link Duration Connection time in a block. Blocks Sent Blocks sent to remote modem. Max Block Size Error control protocol parameter.