National Instruments NI SCXI-1336, Руководство пользователя

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© National Instruments Corporation C-1 SCXI-1129 User Manual
C
SCXI-1129 Block Diagram
Figure C-1 shows the SCXI-1129 high-density matrix module block
diagram. All row and column connections, as well as the triggers, are
accessed through the 180-pin connector on the front of the module. The
internal module structure is a quad, 4
×
16 column matrix. The matrix can
access the high-voltage analog backplane (HVAB) through the matrix
connection relays and the high-voltage bus relays.
Figure C-1. SCXI-1129 Block Diagram
Com 0
Com 1
Com 2
Com 3
Drive Circuitry (4 x 64 Lines)
Controlled by FPGA
Matrix
Connection
Relays
4 x 16 Matrix
Relays
4 x 16 Matrix
Relays
4 x 16 Matrix
Relays
4 x 16 Matrix
Relays
Matrix
Connection
Relays
Matrix
Connection
Relays
Matrix
Connection
Relays
128 K x 8 SRAM
Scan List Memory
Digital Interface
and Control
(FPGA)
Calibration EEPROM
4
1
SCANADV
EXTRIGIN
Front
Signal
Connector
16 x 16
8 x 32
4 x 32
8 x 16
4 x 16
High-Voltage
Rear Panel
Signal
Connector
Digital
Comm.
Low-Voltage
Rear Panel
Signal
Connector
SCXIBus
Connector
High-
Voltage
Bus
Relays
with
Safety
Interlock
AB0 – AB3
SCXIBus
Interface
B1R0 – B1R3
B2R0 – B2R3
B2R0 – B2R3
B3R0 – B3R3