B&B Electronics FBDA manual Data Acquisition Connections, DB-25 Pin # Function

Data Acquisition Connections

The connections to the Data Acquisition Module are made through a DB-25 (male) connector. The FBDA is pin compatible with B&B Electronics’ SDAXX, and ADIO12 modules. This allows you to simply plug the FBDA into one of the above data acquisition modules, and the data acquisition module connections to the FBDA are complete. Table 2.2 contains the DB-25 (male) pin assignments.

Table 2.2: DB-25 (Male) Pin Assignments

DB-25 Pin #	Function	DB-25 Pin #	Function
1	GND	14	-------
2	-------	15	-------
3	-------	16	-------
4	-------	17	looped to 18
5	-------	18	looped to 17
6	-------	19	GND
7	GND	20	-------
8	Vout	21	-------
9	A/D 1	22	-------
10	-------	23	-------
11	-------	24	-------
12	-------	25	-------
13	-------

1.------- denotes no connection.

2.The conditioned sensor signal is available on pin #8 and is labeled Vout.

3.Pin #9 is connected straight through to terminal block A/D 1 (no signal conditioning circuitry).

4.Pins #17 and #18 are looped to each other to provide +5V to REF+ in the SDAXX line of A/D modules.

5.Pin #19 provides 0V to REF- in the SDAXX line of A/D modules.

Figure 2.1 contains a diagram of the connections required to read the signal produced by a sensor.

4Documentation Number FBDA0797 Manual

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