Digital Input Module (DIM)
The
TDAS PRO Digital Input Module (DIM) is a standalone, 16-channel digital
data acquisition system capable of recording virtually any on/off condition.
Each channel is independently programmable for either contact-closure
or voltage event signals. Any channel may be programmed for use as a level-trigger
for all modules in a single TDAS PRO rack system. Event signals are easily
connected via LEMO connectors on the front panel. TDAS PRO DIMs may be
used side-by-side with other TDAS PRO modules including Sensor Input Modules
(SIMs) and Timed Output Modules (TOMs).
Communication Method
TDAS PRO equipment supports the industry-standard Ethernet 10BaseT communication method.
Connector/LED Panel
16 isolated, protected, and self-powered contact-closure or voltage event
digital input channels are available via the LEMO connectors on the front
panel. Each channel is independently programmable.
Electronic Identification (EID)
Each TDAS PRO DIM input channel supports communication with silicon serial
number devices manufactured by Dallas Semiconductor/Maxim Integrated Products.
When an ID chip such as the DS2401 is connected to the proper pins on
the sensor connector, the TDAS Control software can automatically read
these devices and correlate the serial number to channel set-up information.
Memory Size
Each TDAS PRO DIM contains non-volatile RAM capable of storing a maximum
of 2 million samples regardless of the number of channels in use. The
maximum available sampling duration is simply the total number of samples
available (2 million) divided by the sampling rate.
Sampling duration (seconds) = 2,000,000 / sampling rate (samples/second)
Example: 200 seconds = 2,000,000 / 10,000 samples/second
Level Trigger
Any one channel may be configured as a level-trigger channel via the TDAS
Control Software. When this channel is triggered, all other modules in
the TDAS PRO rack are also triggered. Specifying a level-trigger channel
does not prevent the TDAS PRO DIM from responding normally to a hardware
trigger.
Cable Integrity Verification
The TDAS PRO DIM features the ability to check the integrity
of the cabling from the module to the event sensor. Using a 10K ohm resistor
connected in parallel with the event sensor, the TDAS Control software
will test the external signal path for continuity. This feature is turned
on or off via the TDAS Control software.
Shock Rating
All TDAS PRO systems rated for and tested to 100+ Gs, 12 mS
duration, in all axes. TDAS PRO equipment can be mounted directly on a
vehicle, sled or other dynamic testing device.
Temperature Rating
Your system has been tested for full functionality with a case temperature of 50° C.