Hologic DISCOVERY C - Page 39

Discovery QDR Series Technical Manual
2-17
Figure 2-8. 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 C-Arm
Pins
I/O
Logic
Pins
XRC
Pins
XR_RLY_ON+
XR_RLY_ON-
Allows the energy storage capacitor to
be “trickle charged” before applying
full power to avoid large turn-on current
surges that could cause the circuit
breaker to trip.
JP12-1
JP12-2
JP7-1
JP7-2
JP3-1
JP3-20
XR_FREQ+
XR_FREQ-
States whether the line frequency is 50
or 60Hz.
JP12-3
JP12-4
JP7-3
JP7-4
JP3-2
JP3-21
XR_BEAMON+
XR_BEAMON-
Controls the ON/OFF status of the X-
Ray beam.
JP12-5
JP12-6
JP7-5
JP7-6
JP3-3
JP3-22
XR_ISET+
XR_ISET-
Selects the X-Ray beam current (3 or
10mA).
JP12-7
JP12-8
JP7-7
JP7-8
JP3-4
JP3-23
XR_kV1+
XR_kV1-
XR_kV0+
XR_kV0-
Selects the X-Ray beam energy (80,
100, 120 or 140kVp).
JP12-9
JP12-10
JP12-11
JP12-12
JP7-9
JP7-10
JP7-11
JP7-12
JP3-5
JP3-24
JP3-6
JP3-25
ACLINE+
ACLINE-
States the phase of the power frequency. JP12-19
JP12-20
JP7-19
JP7-20
JP3-10
JP3-29
LIGHTON+
LIGHTON-
States whether the X-Ray beam is ON/
OFF. This signal controls the X-Ray
ON lights of the C-Arm Control Panel,
the table Control Panel, and the
Operator's Console Power Module. It
also controls a remote X-ray ON light
through the Power Module when one is
connected.
JP12-21
JP12-22
JP7-21
JP7-22
JP3-11
JP3-30
XR_RLY_ON+, XR_RLY_ON-
XR_FREQ+, XR_FREQ-
XR_BEAMON+, XR_BEAMON-
XR_ISET+, XR_ISET-
XR_KV1+, XR_KV1-
XR_KV0+, XR_KV0-
ACLINE+, ACLINE-
LIGHTON+, LIGHTON-
IBEAM+, IBEAM-
KVP+, KVP-
XRFAULT+, XRFAULT-
X-RAY
CONTROLLER
ASSEMBLY
C-ARM
INTERFACE
BOARD
HIGH VOLTAGE
TRANSFORMER
PRIMARY
X_RAY TUBE
FILAMENT
TRANSFORMER
PRIMARY
240 VAC
From DIN Rail
Power Module
X-RAY
SOURCE
UNIT