ZyXEL U-1496S Plus User Guide - Page 29
Note: Only asynchronous V.25bis available on U-1496B.
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connection. CHARACTER LENGTH + 10 AT*C0 10-bit characters. 11 AT*C1 11-bit characters. 9 AT*C2 9-bit characters. 8 AT*C3 8-bit characters. The character length includes start bit, data bits, parity, and stop bit(s). COMMAND SET + AT AT*I0 Modem accepts asynchronous AT commands. V.25bis AT*I1 Modem accepts asynchronous or bit-oriented synchronous V.25bis commands. DUMP AT*I2 No command accepted. Modem ignores DTE data in idle state. Note: Only asynchronous V.25bis available on U-1496B. DTE RATE + FIXED AT&B1 Modem serial port speed is always fixed no matter what link rate (modem speed) is connected. If S44.6=1 and a non-ARQ connection is made, DTE rate follows link rate as if &B0 is set. FOLLOWS LINK RATE AT&B0 Modem serial port speed is set in accordance with the link rate. If S44.6=1, the DTE speed is fixed at 19200 bps when the link speed is above 9600, and at 9600 when the link speed is 7200, and at link speed when it is below. Note: If you wish to keep your DTE rate fixed, you should choose a buffered transfer. (see DATA FORMAT) DTR OPTIONS IGNORED AT&D0 Modem assumes DTR always ON, ignores the changes. 108.1 AT&D1 An OFF-ON DTR transition causes the modem to dial the number specified under the DEFAULT DIAL of the MODEM OPTIONS submenu. An ON-OFF transition disconnects the modem from the line. + DTR/108.2 AT&D2 Data Terminal Ready, an ON-OFF transition of DTR will disconnect modem from line. 108.2 + RST AT&D3 Same as &D2 but DTR OFF also causes reset from profile 0. Note: Not all computers provide a DTR signal at their serial port connector. If such situations arise you must use the IGNORED setting (AT&D0). DCD OPTIONS