Transmitter and receiver test points, Figure 37, Test points, transmitter – Vaisala FD12P User Manual

Page 151: Table 41, Transmitter test points, Appendix c, transmitter and receiver test points, Appendix c

Appendix C __________________________________________ Transmitter and Receiver Test Points

VAISALA _______________________________________________________________________ 151

APPENDIX C

TRANSMITTER AND RECEIVER TEST
POINTS

There are some test points (TP) on the FD12P circuit boards for
testing. They are as follows:

Table 41

Transmitter Test Points

Test Point

Description

TP1

Reference voltage +2.5 V, ±1 %

TP4

Feedback signal

TP5

Control voltage for LED driver,
>-8 V
<+7 V

X1/1

+15 V

X1/2

-15 V

X1/3

+5 V

X1/4

GND

9611-005

Figure 37

Test Points, Transmitter