Omega Engineering OMB-DBK-34A, User Manual

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DBK20
and
DBK21
Digital I/O Cards
Overview ...... 1
DBK20 – Provides Screw Terminals.
DBK21 – Provides DB37 male connectors.
Hardware Setup ...... 2
Card Connection ...... 2
Card Configuration ...... 2
LogBook Connection ...... 2
DaqBook and DaqBoard Connection ...... 2
DBK21 DB37 Male P2 Connector Pinout ...... 3
Software Setup ...... 3
DBK20 - Specifications ...... 5
DBK21 - Specifications ...... 5
Reference Notes :
o
Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to
your system, as needed.
o
In regard to calculating system power requirements, refer to DBK Basics located
near
the front of this manual.
Overview
The DBK20 and DBK21 are general purpose digital I/O cards that can increase available digital I/O lines
by 48 per card. The DBK20 uses screw terminals; the DBK21 uses DB37 connectors. Both cards connect
to the P2 digital I/O port via the interface cable (CA-37-x).
Note : DBK20 and DBK21 require a P2 interface and therefore, can not be used with Daq PC-Cards.
Note : For DaqBoard/2000 Series and /2000c Series board applications, the P2 interface is derived via use
of an appropriate P4 adapter. P4 adapters are discussed in the DBK200 Series document modules.
Up to four DBK20s or DBK21s can be attached for a maximum of 192 lines (4×48). The local I/O lines
cannot be used while expansion cards are attached. Thus, the first expansion card increases the number of
usable digital I/O lines from 24 to 48, and subsequent cards each add 48 additional lines of programmable
digital I/O.
See
Note 1
See
Note 1
Note 1 : Page 3 of this document module includes a pinout of the DBK21’s male DB37 connectors.
DBK Option Cards and Modules
879795
DBK20 and DBK21, pg. 1