Measurement-computing USB-2404-UI Manuel d'utilisateur télécharger pdf (Page 20)

USB-2404-UI User's Guide Specifications

Table 14. Signal names

Terminal number Signal name Signal description

1 T+ TEDS Data

2 T– TEDS Common

3 EX+/HI (Note 4) Positive excitation or input signal

4 HI Positive input signal

5 EX–/LO (Note 4) Negative excitation or input signal

6 LO Negative input signal

Note 4: Depending on the input mode, terminals 3 and 5 are either excitation signals or input signals.

Table 15. Terminal assignments per input mode

Input mode Signal terminals

1 2 3 4 5 6

Voltage T+ T– — HI LO —

Current T+ T– HI — LO —

4-wire resistance T+ T– EX+ HI EX– LO

2-wire resistance T+ T– HI — LO —

Thermocouple T+ T– — HI LO —

4-wire RTD T+ T– EX+ HI EX– LO

3-wire RTD T+ T– EX+ — EX– LO

Quarter-bridge T+ T– HI — LO —

Half-bridge T+ T– EX+ HI EX– —

Full-bridge T+ T– EX+ HI EX– LO

Accessory products

Table 16. Accessory products

ACC-164 6-position spring terminal connector block (quantity four)

ACC-176 Backshell for use with the ACC-164 6-position spring terminal connector blocks. Provides

strain relief and operator protection from high-voltage signals (quantity four).

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Measurement-computing USB-2404-UI Manuel d'utilisateur Page 20