The OMB-DBK20 and OMB-DBK21
general-purpose digital I/O cards
expand the number of digital I/O lines by
forty-eight per card. The OMB-DBK20
and OMB-DBK21 connect to the digital
O connectors on the OMB-LOGBOOK,
OMB-DAQBOARD-2000 Series or
OMB-DIGIBOOK-72 data acquisition
systems.
Please note that when either the
OMB-DBK20 or OMB-DBK21 is
connected, the OMB-LOGBOOK,
OMB-DAQBOARD-2000 Series or
OMB-DIGIBOOK-72 digital I/O lines
do not function as digital I/O lines for
user-connected digital signals. Thus,
for example, the first OMB-DBK20 or
OMB-DBK21 card attached increases
the system’s number of usable digital
O lines from twenty-four to forty-eight,
and subsequent cards each add
forty-eight additional lines of user-programmable
digital I/O.
Up to four OMB-DBK20 or
OMB-DBK21 cards can be attached
to the P2 port of a system, for a total
of 192 lines.
The OMB-DBK20 and OMB-DBK21
differ only in that the OMB-DBK20
features screw-terminals for signal
outputs, whereas the OMB-DBK21
provides DB37 male connectors for
signal outputs.
