One-sided printed circuit board with components and a ground plane on the top. There are several stamped and one printed QA designations. There is a 26-pin PCB connector on the back edge of the board.
Manufacturer
Xerox Data Systems, Inc. (XDS)
Identifying Numbers
Other number
(C) SDS-65
Screened on right side (pins facing away) top of board, near the pins.
Other number
123186
Screened front (pins facing away) top of board.
Other number
123187F
Screened on left side (pins facing away) top of board
Other number
914C
Printed on back side of the board at the front (pins facing away).
Other number
HT12
Screened on front (pins facing away) top of board. A small raised '0' to the left of 'HT12.'
