Canon CXDI-80C, Руководство по обслуживанию

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. Description of Functions
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2.2.1 PCA-XIF board
The PCA-XIF board is located inside the X-ray interface box, and has the main functions which
are described below.
(1) It has a function for interfacing with X-ray generator. In addition, the board employs a relay
circuit for the output signals and a photo-coupler for the input signals to protect the internal
circuitry.
(2) It has an exposure control function which monitors the statuses of the X-ray generator and
detector to determine whether exposure is possible and, if it is possible, to enable it.
(3) It has a function for interfacing with the detector.
(4) It uses LEDs to display the power supply status.
* The dedicated AC adapter is used to supply power to the PCA-XIF board. It does not have a
power switch because the X-ray interface box and the AC adapter are supported to be used by
continuous energization. The PCA-XIF board must be turned on and off by connecting or
disconnecting the plug on the wall.
* For safety concerns, do not disconnect the cable from the X-ray interface box or disconnect
the AC adaptor. It would expose the electrically-activated part. To avoid this, please
disconnect the plug on the wall or turn off the commercial power supply.
* The use of table tap, which causes a change in electrical safety, is not allowed according to the
electrical safety standards.
* The X-ray interface box must be placed outside the patient environment.
SW1 (RESET) switch
SW2 (BOOTSEL) switch
X-ray interface cable
LAN cable connector
AC adapter connector
LED
Grounding terminal