Hologic QDR 4500 Technical Manual page 39

Signal
STCLK+
STCLK-
STFRM+
STFRM-
ATD_CARM+
ATD_CARM-
SRD+
SRD-
SRCLK+
SRCLK-
SRFRM+
SRFRM-
XR_ZEROX_CC+
XR_ZEROX_CC-
INTEGR_CC+
INTERG_CC-
SYSRST_CARM+
SYSRST_CARM-
EMERGENCY_CARM+
HW_EMGNCY_RET-
XRAY_LIGHT+
XRAR_LIGHT-
CONTINUITY 1
CONTINUITY 2
+15V
-15V
15V_RET
24V
24V_RET
28V
28V_RET
Notes: 1. Dist
2. C-Arm
Figure 2-7 shows the boards and assemblies that connect to the C-Arm Interface board.
Section 2 - Functional Description
Description
Synchronizes data through the C-Arm Interface board to
the DAS.
Synchronous channel data frame from Communications
Controller through the Distribution board to the DAS.
Asynchronous Data from the from the C-Arm Interface
board.
Synchronous Data through the C-Arm Interface board
from the DAS.
Synchronizes data through the C-Arm Interface board
from the DAS.
Synchronous channel data frame through Distribution
board to Communications Controller from the DAS.
AC line zero-crossing signal used for system wide
synchronization. Generated by the C-Arm Interface
board.
Synchronous signal for Detector Integrate period.
Generated by the C-Arm Interface board.
Resets the C-Arm Interface board.
Removes power from the Scanner's motor drivers and
the X-ray system
Applies power to the AUX X-RAY light outlet on the
Power Console.
Emergency shutdown daisy chain.
Powers the Data Acquisition System.
Generates +5VDC to power the digital section of the C-
Arm Interface board, and +7VDC for power to the Data
Acquisition System.
Powers the stepper motors and fan.
= Distribution board.
= C-Arm Interface board
1 2
Dist C-ARM
Pin Pin
JP1-9 JP1-9
JP1-10 JP1-10
JP1-12 JP1-12
JP1-13 JP1-13
JP1-15 JP1-15
JP1-16 JP1-16
JP1-18 JP1-18
JP1-19 JP1-19
JP1-21 JP1-21
JP1-22 JP1-22
JP1-24 JP1-24
JP1-25 JP1-25
JP1-30 JP1-30
JP1-31 JP1-31
JP1-33 JP1-33
JP1-34 JP1-34
JP1-39 JP1-39
JP1-40 JP1-40
JP1-42 JP1-42
JP1-43 JP1-43
JP1-48 JP1-48
JP1-49 JP1-49
JP1-1 JP1-1
JP1-5 JP1-5
JP4-1 JP9-1
JP4-3 JP9-3
JP4-2 JP9-2
JP4-4 JP9-4
JP4-5 JP9-5
JP4-6 JP9-6
JP4-7 JP9-7
2-17