Lantronix SLB Lantronix SLB - User Guide - Page 98

8: Device Ports Show Lines on Connecting If enabled, when the user either does a connect direct from the CLI or connects directly to the port using Telnet or SSH, the SLB outputs up to 24 lines of buffered data as soon as the serial port is connected. For example, an SLB user issues a connect direct device 1 command to connect port 1 to a Linux server. Then the SLB user ls command to display a directory on the Linux server, then exits the connection. When the SLB user issues another direct connect device 1, the last 24 lines of the ls command is displayed so the user can see what state the server was left in. Hardware Signal Triggers Check DSR on Connect Disconnect on DSR If this setting is enabled, the device port only establishes a connection if DSR (Data Set Ready) is in an asserted state. DSR should already be in an asserted state, not transitioning to, when a connection attempt is made. Disabled by default unless dial-in, dial-out, or dial-back is enabled for the device port. If a connection to a device port is currently in session, and the DSR signal transitions to a de-asserted state, the connection disconnects immediately. Disabled is the default unless dial-in, dial-out, or dial-back is enabled for the device port. Modem Settings Note: Depending on the State and Mode you select, different fields are available. State Mode Use Sites Initialization Script Modem Timeout Indicates whether an external modem is attached to the device port. If enabling, set the modem to dial-out, dial-in, dial-back, dial-on-demand, dial-in/host list, or dial in & dial-on-demand. Disabled by default. The format in which the data flows back and forth:  Text: In this mode, the SLB assumes that the modem will be used for remotely logging into the command line. Text mode can only be used for dialing in or dialing back. Text is the default.  PPP: This mode establishes an IP-based link over the modem. PPP connections can be used in dial-out mode (e.g., the SLB connects to an external network), dial-in mode (e.g., the external computer connects to the network that the SLB is part of), or dial-on-demand. Enables the use of site-oriented modem parameters which can be activated by various modem-related events (authentication, outbound network traffic for dialon-demand connections, etc.). Sites can be used with the following modem states: dial-in, dial-back, dial-on-demand, dial-in & dial-on-demand, dial-back & dial-on-demand, and CBCP server. Commands sent to configure the modem may have up to 100 characters. Consult your modem's documentation for recommended initialization options. If you do not specify an initialization script, the SLB uses a default initialization string of AT S7=45 SO=0 L1 V1 X4 &D2 &c1 E1 Q0. Note: We recommend that the modem initialization script always be preceded with AT and include E1 V1 x4 Q0 so that the SLB may properly control the modem. For information on AT commands, refer to the modem user guide, or do a web search for at command set. Timeout for all modem connections. Select Yes (default) for the SLB to terminate the connection if no traffic is received during the configured idle time. Enter a value of from 1 to 9999 seconds. The default is 30 seconds. SLB - Branch Office Manager User Guide 98