Portserver TS-8/16 digi board hung with SPARC T5-2 SERVER

Console server loosing connectivity with T5-2 sparc server…

More details would be helpful. What is hung? All serial ports, one serial port? Does the hang happen regularly or randomly? What is done to clear the hang?

What driver version is being used?

Are the ports on the PortServer unit configured to use the RealPort protocol? Is the unit pingable from the Solaris host when the hang occurs?