User manual
Hardware Setup 
If using a DaqBook/200, DaqBook/216, DaqBoard/200A, or DaqBoard/216A that has a 
serial number of 103350 or earlier, you must contact the factory for a hardware 
upgrade (EO-1911) before using the DBK4. 
Software calibration for each DBK4 requires a set of unique constants supplied on a 
diskette identified by a serial number matching the DBK4 card. To install these 
constants, follow instructions on the “readme” file included on the calibration disk. 
Card Configuration 
Factory Defaults 
•  Current Level – 4ma 
•  Coupling – 10 Hz 
•  Current Source – On 
•  40Khz Filter – In-Line 
Both hardware and software are used in configuration. This section focuses on the hardware. Jumpers and 
switches are used to set: current source (current level and source enable/disable), filter bypass, signal 
coupling, and channel addressing. It is best to remove power from the card to perform these selections. 
The figure reveals the jumper and switch locations. 
Note: The hardware jumper settings referenced in the following subsections are per-channel selections 
unless otherwise specified. 
DBK4, Board Layout (not to scale) 
DBK Option Cards and Modules 958293  DBK4, pg. 3 










