Teletype Incloming Line Unit 4702 system building block
Digital Equipment Corporation (DEC)
Printed on the solder side and on the face of the aluminum frame
On a sticker the front of the frame
Stamped into the side of the frame
overall: 1/2 in x 4 1/2 in x 14 in
The module consists of a printed circuit board with various components, surrounded by an aluminum frame and Blue plasic 22 pin connector. At the end of the board opposite the connector there is a single micro switch.