Measurement Computing DBK Part 2 - Manual (Page 120)

Configuring the Primary Data Acquisition Device
DaqBook/100 Series & /200 Series and DaqBoard [ISA type] Configuration
Several setup steps of DaqBook/100 Series & /200 Series devices
and DaqBoards [ISA type] are required to use DBK55
modules in a system.
1.
If not using auxiliary power, place the JP1 jumper in
the expanded analog mode.
Note: This default position is necessary to power the
interface circuitry of the DBK42 via the internal
±15 VDC power supply. If using auxiliary power
(DBK32A/33), you must remove both JP1 jumpers
(refer to the Section Power Requirements in the
document module DBK Basics, in regard to
calculating system power requirements).
CAUTION
When using the SSH output, do not use an external voltage reference for DAC1.
Applying an external voltage reference for DAC1, when using the SSH output, will
result in equipment damage due to a conflict on P1, pin #26.
2.
Place the JP2 jumper in the SSH position (See previous CAUTION).
3.
For DaqBook/100, /112 and /120 only, place JP3 jumpers in bipolar mode.
4.
For DaqBook/100, /112 and /120 only, place JP4 jumpers in single-ended mode.
DaqBook/2000 Series & DaqBoard/2000 Series
No jumper configurations are required on the DaqBook/2000 series and DaqBoard/2000 series devices in
regard to connecting a DBK55.
LogBooks
No jumper configurations are required on LogBook devices in regard to connecting a DBK55.
CE Compliance
If your data acquisition system needs to comply with CE standards, the DBK55 must be connected to the
LogBook or Daq device by a CA-143-x cable.
Note that in the presence of 3 V/m RF fields, the following conditions must exist in order to meet CE
requirements:
• 500 mVpp signals are required to maintain 0.1% accuracy.
• Metal shells of the BNC connectors must be directly connected to the chassis ground in order
to maintain 100 mV sensitivity and 0.1% accuracy.
• The host computer must be properly grounded.
• The host computer and peripheral equipment must be CE compliant.
Reference Notes: If your data acquisition system needs to comply with CE standards,
refer to the CE Compliance section of Signal Management chapter.
DBK55, pg. 10 988793 DBK Option Cards and Modules