Measurement Computing DBK30A - Manual (Page 3)

Hardware Setup
Configuration
The only configuration option is the choice of modes (14 VDC, or 28 VDC). If you do not need 28 V,
leave SW2 in the default position.
If you are using a pre-owned DBK30A, or are unsure of the mode selected, use the
following steps to check SW2’s position. Note that new units are always shipped with SW2
selected to the 14 VDC mode.
Internal switch SW2 is located on the printed circuit board, near the front center of the unit. To change or
verify the mode:
1. Remove DBK30A’s cover by removing one screw and sliding the cover forward until it separates
from the module.
2. Look near the front center of the circuit board and locate slide switch SW2.
3. Check SW2’s selection. The silkscreen indicates the 14 and 28 VDC positions.
4. Change the selection, if required. If you do not need 28 V, SW2 should be in the default position
(14 VDC).
5. Replace the top cover, and secure with screw.
Power
Connection. The figure shows the pinout for the POWER OUT DIN5 connector.
The 28 V pin is only active in the 28 VDC mode; however, the 14 V pin is active
regardless of the mode selected.
Cable CA-115 is included in the DBK30A package. The cable connects to
DBK30A’s POWER OUT connector and a LogBook, DaqBook, or WaveBook
DIN5 POWER IN connector. The cable can be used to daisy-chain a DBK30A
unit to a DBK or WBK expansion module.
The DBK30A package includes a short connecting cable (CA-115) to connect to the LogBook or Daq
device. This cable connects the POWER OUT connector on the DBK30A to the POWER IN connector on
the Daq device or LogBook (see next figure).
DBK Option Cards and Modules 879795 DBK30A, pg. 3