IOtech DaqBoard/3000USB Series, User Manual

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2-12 Connections & Pinouts
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DaqBoard/3000USB Series User’s Manual
Hardware Setups
This section presents three examples of hardware setup. Other scenarios are possible, for example, using a
TB-100 and also using one CA-248 cable. Users may also forgo the use of TB7, even if using
thermocouples. Also note that the optional TR-2 power supply can be used in any scenario.
The most important part of the setup is to avoid making redundant signal connections and to use approved
ESD precautions. Pinouts are presented earlier in this chapter.
WARNING !
Avoid redundant connections. Ensure there is no signal conflict between SCSI pins
and the associated header pin (J5. J6. J7. and J8). Also ensure there is no conflict
between TB7 (thermocouple connections) and the SCSI and/or the 40-pin headers.
Failure to do so could possibly cause equipment damage and/or personal injury.
WARNING !
Turn off power to all devices connected to the system before making connections.
Electrical shock or damage to equipment can result even under low-voltage conditions.
CAUTION
The discharge of static electricity can damage some electronic components.
Semiconductor devices are especially susceptible to ESD damage. You should always
handle components carefully, and you should never touch connector pins or circuit
components unless you are following ESD guidelines in an appropriate ESD controlled
area. Such guidelines include the use of properly grounded mats and wrist straps,
ESD bags and cartons, and related procedures.
Scenario 1: Using CA-248 Cables to obtain DB37 Connectors
In this setup a CA-248 cable is connected to each of the 40-pin headers (J5, J6, J7, and J8). The result is
four male DB37 connectors which, as can be seen from the pinouts, offer the same signal connectivity as
the SCSI connector. Note that the J6 header is dedicated entirely to analog expansion and therefore is not
applicable to /3001USB or /3005USB. As in all scenarios, a CA-179-x USB cable is used to connect the
/3000USB Series board to a USB2.0 port on the host PC.