Measurement Computing DaqBoard 1000 Series - Manual (Page 39)

DaqBoard/2003
4 Analog Outputs
DaqBoard/2003 and /2003c are high-speed plug-and-play data acquisition boards for PCI and compact-PCI
bus computers, respectively. The boards are used for analog output and include four 16-bit, 100-kHz D/A
converters. Up to four boards can be installed into a PC.
A 100-pin connector on the boards provides access to the DAC analog output signals. The boards plug
directly into a PCI or compact-PCI bus slot, as applicable. The DAC analog output leaves the board
through “P3-designated” pins located on the board’s 100-pin P4 connector.
Both boards support Software-based triggering. In “Software-based” triggering the PC detects the
trigger event from the readings. Six pre- and post-triggering modes are supported.
DBK205
Terminations
TB1-1 AGND
TB1-2 DAC0
TB1-3 AGND
TB1-4 DAC1
TB1-5 AGND
TB1-6 DAC2
TB1-7 AGND
TB1-8 DAC3
TB1-9 AGND
TB1-10 XTTL
TB1-11 CLK
TB1-12 DGND
DBK205 Adapter DaqBoard/2003 Block Diagram
Note: DaqBoard/2003 and DaqBoard/2003c are shipped with one DBK205 adapter. The adapter has twelve screw
terminals as follows: DAC0, DAC1, DAC2, DAC3, 1 digital ground, 5 analog grounds, 1 external clock (CLK), and
1 external trigger (XTTL). DBK205 connects directly to DaqBoard/2003’s P4 connector.
Connections
Installation
Reference Note: For the DaqBoard/2003 and DaqBoard/2003c installation procedure, refer to
either the DaqBoard/1000 and /2000 Series Installation Guide or to the DaqBoard/2000c
Series Installation Guide, as applicable. The guides are included at the beginning of this
manual.
I/O Connector
Analog output signals are available at the board’s 100-pin P4 connector. A 3-foot, 100-conductor ribbon
cable, part number CA-195, mates with connector P4; however, a DBK205 adapter board is included for
connecting the 100 pins of P4 to a terminal block (TB1).
DBK205’s TB1 includes screw terminals for: DAC0, DAC1, DAC2, and DAC3, 1 digital ground,
5 analog grounds, 1 external clock (CLK), and 1 external trigger (XTTL). DBK205 connects directly to
DaqBoard/2003’s P4 connector or to a compact-PCI DaqBoard/2003c’s P4 connector.
DBK205 is depicted as part of the block diagram above and is discussed briefly in chapter 3 of this manual.
DBK205 is also discussed in the DBK Cards and Modules User’s Manual (p/n 457-0905).
DaqBoard/1000 and /2000 Series User’s Manual 889094 Daq Systems and Device Overviews 1-17