INTRODUCTION

The 16 channels photo isolator input board for pocket 16 DI provides photo isolator input functions, which allow the input signals to be completely floated and prevent the ground loop.

The features of 16 channels photo isolator input board are:

*Support 16 photo couple input channels.

*Breakdown voltage : AC/DC 500V minimum.

*Allow the photo input signals to be completely floated and prevent the ground loops.

*Input current : 80mA maximum for each isolated input.

*Input voltage : 15V DC maximum for each isolated input.

*LED indicates when corresponds channel is activated.

*Isolated or non-isolated modes selectable.

*Operating temperature 0 to 60 oC.

*Storage temperature ¡V20 to 70 degree oC.

*Humidity 5% to 95% in non-condensing.

1. Terminal Board

The figure of pocket 16 DI terminal board is shown on the following page.














HARDWARE CONFIGURATION

Before you use the terminal board, you must be sure to have this board plugged into pocket 16 DI box.

The LED17 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.

The Jumpers are used to select isolated or non-isolated mode, when open the jumpers, it sets to isolated mode, otherwise when

short the jumpers, it sets to non-isolated mode. JP1A and JP1B correspond to channel 0, JP2A and JP2B correspond to channel 1, etc. When set to non-isolated mode, the IxL is short to system ground. (where x is the channel number)

3. Pin Assignment of T1


Pin Description Pin Description
1 GND 14 +5V
2 DI10 15 GND
3 DI11 16 GND
4 DI12 17 GND
5 DI13 18 GND
6 DI14 19 GND
7 DI15 20 DI23
8 DI16 21 DI24
9 DI17 22 DI25
10 DI20 23 DI26
11 DI21 24 DI27
12 DI22 25 +5V
13 GND










4. Pin Assignment of TB1





5. Pin Assignment of TB2




Pin Description
1 I10H
2 I10L
3 I11H
4 I11L
5 I12H
6 I12L
7 I13H
8 I13L
9 I14H
10 I14L
11 I15H
12 I15L
13 I16H
14 I16L
15 I17H
16 I17L
17 +5V
18 GND

















Pin Description
1 I20H
2 I20L
3 I21H
4 I21L
5 I22H
6 I22L
7 I23H
8 I23L
9 I24H
10 I24L
11 I25H
12 I25L
13 I26H
14 I26L
15 I27H
16 I27L
17 +5V
18 GND