US Robotics 56K USB Modem User Manual page 37

In the third case, the modem receives a break from a remote modem during a connection. These
commands are shown in Table 43.
Table 43. \K<value> Commands When Break Is Received During Connection
Command
\K0, \K1 Clears data buffers and sends a break to the DTE.
\K2, \K3 Sends a break to the DTE immediately.
\K4, \K5 Sends a break to the DTE in sequence with received data (default).
\N<value>—Select Error Control Mode
Use this command to select the type of error control used by the modem when sending or receiving data.
Result codes:
• OK if <value> = 0—5, or 7.
≠
• ERROR if <value>
Table 44. \N<value> Commands
Command
\N0 Buffer mode. No error control (same as &Q6).
\N1 Direct mode.
\N2 MNP or disconnect mode. The modem attempts to connect using MNP 2—4 error control
procedures. If this fails, the modem disconnects. This is also known as MNP reliable
mode.
\N3 V.42, MNP, or buffered (default). The modem attempts to connect in V.42 error control
mode. If this fails, it attempts to connect in MNP mode. If this also fails, the modem con-
nects in buffer mode and continues operation. This is also known as V.42/MNP auto reli-
able mode (same as &Q5).
\N4 V.42 or disconnect. The modem attempts to connect in V.42 error control mode. If this
fails, the modem disconnects.
\N5 V.42, MNP, or buffered (same as \N3).
\N6 SDLC, a full-duplex protocol. To be used in conjunction with fast-connect commands (see
Table 202, \F<value> Commands, on page 88).
\N7 V.42, MNP, or buffered (same as \N3).
\Q<value>—Local Flow Control Selection
Use this command to set the local flow control method.
Result codes:
• OK if <value> = 0—1, or 3.
ERROR if <value> ≠ 0—1, or 3.
•
Table 45. \Q<value> Commands
Command
\Q0 Disables flow control (same as &K0).
\Q1 XON/XOFF software flow control (same as &K4).
\Q3 RTS/CTS to DTE (same as &K3) (default).
0—5, or 7.
Function
Function
Function
56K USB Modem
User Guide
Command Reference - 31