ICP DAS USA DB-16R, Руководство пользователя

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DB –16P
3. DB-16P
16 Opto-Isolated Digital
Input Terminal Board
The DB-16P is a 16 channel isolated digital input daughter board for A-82x
DAS board or any 812PG, 711 series DAS boards. The optically isolated
inputs of the DB-16P consist of a bi-directional LED with a resistor for current
sensing. You can use the DB-16P to sense DC signal from TTL levels up to
24V. You can also use DB-16P to sense a wide range of AC signals. The
DB-16P registers a constant logic high if the frequency of the input AC signal
is greater or equal to 1 kHz, and the voltage of the AC signal is at least 4Vrms.
If you are using AC input signal, you should short the AC filter Jumper. You
can use the board to isolate the computer from large common-mode voltages,
ground loops, and voltage spikes that often occur in industrial environments.
3.1. Features
16 optically isolated digital input
Connected to DIO-64, A-62X, A-82x data acquisition boards
AC/DC Signal Input
AC Signal Input with filter
Input buffer with voltage comparators
3,000V isolation
Each channel has it’s LED indicator
User’s Manual for DIO Daughter Boards (Ver.2.5, Jan/2004 )
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