GE M
EDICAL
S
YSTEMS
D
IRECTION
FC091194, R
EVISION
02
V
IVID
7 / V
IVID
7 PRO S
ERVICE
M
ANUAL
Chapter 5 - Components and Functions (Theory)
5 - 57
5-11-6-3
Inputs
DC Voltages
Signal Inputs
Table 5-39 DC Input Voltages
Input
Description
Connected to:
+ 3.3 Vd
DC output voltage, distributed via Mother Board (Back
Plane).
The “d” indicates that this voltage is used for digital circuits.
DC Power Supply via Backplane
+ 5 Vd
DC output voltage, distributed via Mother Board (Back
Plane).
The “d” indicates that this voltage is used for digital circuits.
DC Power Supply via Backplane
- 5 Va
DC output voltage, distributed via Mother Board (Back
Plane).
The “a” indicates that this voltage is used for analog circuits.
DC Power Supply via Backplane
+ 15 Va
DC output voltage, distributed via Mother Board (Back
Plane).
The “a” indicates that this voltage is used for analog circuits.
DC Power Supply via Backplane
- 15 Va
DC output voltage, distributed via Mother Board (Back
Plane).
The “a” indicates that this voltage is used for analog circuits.
DC Power Supply via Backplane
GND
Distributed via Mother Board (Back Plane)
DC Power Supply via Backplane
Table 5-40 Signal Inputs
Input
Description
Connection from:
PRPRES
Probe Present
Relay Board
High Voltage V & I
Sense
Indicates the voltages and currents from the TX Supply
TX Power
VME Bus
Used for communication with the rest of the system (not the
Front End Boards).
Commands and data from the VME Bus can be routed via
the Front End bus to the other boards in the Front End.
The Backend Processor