Can anyone id these DEC PDP-8(?) cards?

[Al Kossow]

http://www.classiccmp.org/hp/PDP-8%20cards/CESI%20LPC8.jpg

third party line printer controller card

http://www.classiccmp.org/hp/PDP-8%20cards/Emulex%20TU1110406.jpg

phase encoding option for the Unibus TU11 controller

http://www.classiccmp.org/hp/PDP-8%20cards/Emulex%20TU1110406.jpg

part of a systems industries disc controller

http://www.classiccmp.org/hp/PDP-8%20cards/PN%20140014.jpg

probably a third party serial interface with 20ma output 
(note the opto isolators near the connector)