INTRODUCTION

The pocket A/D terminal board provides the standard voltage divider circuit for pocket A/D only, it supports 11 channels terminal loop, and user can design voltage divider circuit by himself.

The maximum input voltage for each channel is 0 to 5V DC or 0 to 10V DC.0

1. Terminal Board

The figure of pocket A/D terminal board is shown on the following page




















HARDWARE CONFIGURATION

Before you use the A/D terminal board, you must be sure to have this board plugged into the pocket A/D.

The LED in terminal board shows the power on status. When it turns to light, we have power to this board, otherwise when it does not light, no power is provided.




2.1 Pin Assignment of T1





2.2 Pin Assignment of TB1 (Photo Isolator)







Pin Description Pin Description
1 GND 14 NON
2 CH0 15 GND
3 CH1 16 GND
4 CH2 17 GND
5 CH3 18 GND
6 CH4 19 GND
7 CH5 20 GND
8 CH6 21 GND
9 CH7 22 GND
10 CH8 23 GND
11 CH9 24 GND
12 CH10 25 +5V
13 GND



Pin Description
1 CH0
2 GND
3 CH1
4 GND
5 CH2
6 GND
7 CH3
8 GND
9 CH4
10 GND
11 CH5
12 GND








2.3 Pin Assignment of TB2












Pin Description
1 CH6
2 GND
3 CH7
4 GND
5 CH8
6 GND
7 CH9
8 GND
9 CH10
10 GND














2.4 The Use of the Jumper

 



JPx is used to select maximum input voltage, (where x is channel number) when JPx is open, the maximum input voltage is 10V DC, when JPx is short, and the maximum input voltage is 5V DC. JP1 corresponds to channel 0, and JP2 corresponds to channel 1, ... etc.