need Info on Cirrus card set in a PDP8/A

Hi, I have a PDP8/A with a Cirrus processor card set. Either I have looked in the wrong places or at least I have not come up with any info. on these. It has all the other DEC cards M3320, M8416, M8317, M8417, Cirrus, Cirrus, Cirrus and a M8330. I'm trying figure out the console port (serial). It has the standard DEC port and 2 connections on the cirrus boards. The cirrus boards have there own ROM's. It seems to start up and do a auto boot of some type. It does not respond to the front panel like a standard DEC board set does And there is nothing at the DEC console (serial) port. It does display what its doing. (addressing and the the run light ) On the front programmers console. Thanks, Jerry Jerry Wright g-wright at att.net <mailto:g-wright at att.net>