When connecting the console to the 6740T, output may be seen, but input is not accepted and the serial access is unavailable.
Software Release: N/A Fixed in Version: N/A
The VDX6740T ships with a Mini-usb to Serial RS232 cable. In many cases, a terminal such as a PCmay lack the older serial ports, and so a Serial to USB converter is often used to connect it to a USB port.
In some cases these third-party adaptors may not be compatible with the Brocade cable and result in partial or no serial communication between the 6740T and the terminal.
VDXs without the mini-usb console port would not encounter this issue.
Use a serial port on the terminal without the third-party adaptor, or else look at replacing the third-party adaptor.
At this time Brocade neither supports nor recommends a third-party Serial to USB adaptor for the 6740T.