Lantronix G520 G520 User Guide - Page 206

Field Initial Send Initial Send Type Flush Serial Block Serial Block Network Password 17: Tunnel Description Enter the Initial Send data to be sent out the network upon connection establishment before any data from the Line. It may contain one or more Directives of the form %. The Initial Send string can be entered in Text or Binary form. The Binary form allows square braces [] to enclose one or more character designations separated by commas. Use straight decimal numbers up to 255 or hexadecimal numbers prefixed with 0x up to 0xFF within the square braces. To specify an open brace in binary mode, use two in a row. Example The selection (in binary mode): AB[255,0xFF]C[[D]results in a string containing binary values where the dots appear: AB...C[D] Directives  %i local IP address  %m MAC address  %n network interface name  %p local port  %s serial number  %% % The format of the initial send data.  Text  Binary Set whether the serial line data buffer is flushed upon a new network connection. Choices are:  Enabled - serial data buffer is flushed on network connection  Disabled - serial data buffer is not flushed on network connection (default) Set whether Block Serial is enabled for debugging purposes. Choices are:  Enabled - incoming characters from the serial line will not be forwarded to the network. Instead, they will be buffered and will eventually flow off the serial line if hardware or software flow control is configured.  Disabled - this is the default setting; incoming characters from the serial line are sent to the network. Any buffered characters are sent first. Set whether Block Network is enabled for debugging purposes. Choices are:  Enabled - incoming characters from the network will not be forwarded to the serial line. Instead, they will be buffered and will eventually flow off the network side.  Disabled - this is the default setting; incoming characters from the network are sent to the serial line. Any buffered characters are sent first. The password can be up to 31 characters in length. Valid characters are alphanumeric characters and punctuation. When set, clients must send the correct password string to the device within 30 seconds from opening network connection in order to enable data transmission. The password sent to the device must be terminated with one of the following:  0A (Line Feed)  00 (Null)  0D 0A (Carriage Return/Line Feed)  0D 00 (Carriage Return/Null) If Prompt for Password is selected and a password is configured, the user will be prompted for the password upon connection. G520 Series IoT Cellular Gateway User Guide 206