Pca-Pb Board; Ac/Dc Power Supply; Power Cable Assembly; Detector Cable - Canon CXDI-80C Service Manual

3.2.1 PCA-PB board

The PCA-PB board is located inside the AC/DC box, and it has the connectors to which the
detector cable, LAN cable and status indicator unit are connected. Its main functions are
described below.
(1) It provides interfacing for supplying power from the AC/DC power supply (DC 12V) to the
detector.
(2) It provides interfacing for Ethernet communication (IEEE 802.3u standard) with the image
capture computer through the hub.
(3) It provides interfacing for LED control communication from the detector to the status
indicator.

3.2.2 AC/DC power supply

The AC/DC power supply is located inside the AC/DC box, and it generates DC power from the
AC input. The DC 12 V power is supplied through the PCA-PB board for use by the detector
and status indicator unit. The board has a toggle switch for turning the power ON and OFF and
a blue LED to verify the power-on status.

3.2.3 Power cable assembly

This cable supplies the power from the AC/DC power supply to the PCA-PB board.

3.2.4 Detector cable

This cable is used to connect the detector to the PCA-PB board inside the AC/DC box.
Mating key
AC/DC box end
3 . Description of Functions
3 .
8-pair composite shielded cable
White
Yellow
White
Green
White
Blue
Purple
White
Gray
White
White
Brown
White
Red
White
Orange
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Detector end