Figure 2-8. C-Arm Interface Board/X-Ray Controller Assembly Interconnection Diagram - Hologic QDR 4500 Technical Manual

interconnection connector and pin assignments. Note that the AC input power comes directly
from the Operator's Console Power module and connects to the Low Voltage Power Supply
board of the X-Ray Controller Assembly. All others connect to the I/O and Logic board of the
assembly.
XR_RLY_ON+, XR_RLY_ON-
XR_FREQ+, XR_FREQ-
XR_BEAMON+, XR_BEAMON-
XR_ISET+, XR_ISET-
XR_KV1+, XR_KV1-
C-ARM
XR_KV0+, XR_KV0-
INTERFACE
ACLINE+, ACLINE-
BOARD
LIGHTON+, LIGHTON-
IBEAM+, IBEAM-
KVP+, KVP-
XRFAULT+, XRFAULT-
From Operator's
Console Power Module
C-Arm Interface Board/X-Ray Controller Assembly Interconnection Diagram
Table 2-11. C-Arm Interface Board/X-Ray Controller Assembly
Interconnection Description
Signal Description
XR_RLY_ON+ Allows the energy storage capacitor to be "trickle
XR_RLY_ON- charged" before applying full power to avoid large
turn-on current surges that could cause the circuit
breaker to trip.
XR_FREQ+ States whether the line frequency is 50 or 60Hz.
XR_FREQ-
XR_BEAMON+ Controls the ON/OFF status of the X-Ray beam.
XR_BEAMON-
XR_ISET+ Selects the X-Ray beam current (3 or 10mA).
XR_ISET-
XR_kV1+ Selects the X-Ray beam energy (80, 100, 120 or
XR_kV1- 140kVp).
XR_kV0+
XR_kV0-
ACLINE+ States the phase of the power frequency.
ACLINE-
Section 2 - Functional Description
X-RAY
CONTROLLER
ASSEMBLY
240 VAC
Figure 2-8.
HIGH VOLTAGE
TRANSFORMER
PRIMARY
X-RAY
SOURCE
UNIT
X_RAY TUBE
FILAMENT
TRANSFORMER
PRIMARY
I/O
C-Arm Logic XRC
Pins Pins Pins
JP12-1 JP7-1 JP3-1
JP12-2 JP7-2 JP3-20
JP12-3 JP7-3 JP3-2
JP12-4 JP7-4 JP3-21
JP12-5 JP7-5 JP3-3
JP12-6 JP7-6 JP3-22
JP12-7 JP7-7 JP3-4
JP12-8 JP7-8 JP3-23
JP12-9 JP7-9 JP3-5
JP12-10 JP7-10 JP3-24
JP3-6
JP12-11 JP7-11
JP3-25
JP12-12 JP7-12
JP12-19 JP7-19 JP3-10
JP12-20 JP7-20 JP3-29
2-19