Lantronix SLC 8000 Advanced Console Manager User Guide - Page 192
Hardware Signal Triggers, Show Lines on, Connecting, USB Channel, Check DSR on, Disconnect on DSR
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9: Device Ports Show Lines on Connecting USB Channel If enabled, when the user either does a connect direct from the CLI or connects directly to the port using Telnet or SSH, the SLC outputs up to 24 lines of buffered data as soon as the serial port is connected. For example, an SLC user issues a connect direct device 1 command to connect port 1 to a Linux server. For example, if the SLC user issues the ls command to display a directory on a Linux server, then exits the connection, the results of the ls will be stored in the buffer. When the SLC user then 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. Applies to USB device ports only. When a dual channel USB device is connected to the device port, this allows the user to select which of the channels is the active channel used for all connections. Only one channel can be active at any time. Enter the number 1 or 2. The default is 1. Hardware Signal Triggers Note: When the DSR signal drops on a device port, indicating that the attached cable has been disconnected or the attached device has been powered off, the SLC will log the event in the Device Ports system log and send a slcEventDevicePortAction SNMP trap. The log message and SNMP trap only occur if there is an active (connect direct or network connection) to the device port. Check DSR on Connect Disconnect on DSR Assert DTR 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. Note: Applies to serial RJ45 device ports only. 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. Note: Applies to serial RJ45 device ports only. By default, DTR (Data Terminal Ready) is asserted on a device port nearly all of the time (except momentarily when a port is opened for operations). Unchecking this option will deassert DTR, simulating a cable disconnection for the device that is connected to a device port. Note: Applies to serial RJ45 device ports only. SLC™ 8000 Advanced Console Manager User Guide 192