Acrosser Technology AR-B2001 Manuel utilisateur

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CHAPTER 1

INTRODUCTION

1.1 GENERAL DESCRIPTION

The AR-B2001 card is an inexpensive 16 chan-

nel photo-couple isolated digital input interface

card for IBM PC/XT/AT personal computers and

their compatibles. The AR-B2001 can be used in

various applications including: external switch

sensing, contact closure and external voltage

sensing.

The individual 16 input channels can be config-

ured as dry contact input mode or voltage input

mode. It can be driven from 3 to 30V DC control

voltage. Additional resistance can be added to

the AR-B2001 externally to extend the input volt-

age range.

16 LEDs are provided to indicate the status of

each input channel. All of the photo-couple com-

ponents are installed on IC sockets for easy

maintenance and replacement.

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1.2 FEATURES

16 channels opto-isolated digital input

Dry contact or voltage input mode jumper se-

lectable

I/O address switch selectable between 000H

to 3FCH.

16 LED status indicators

2250 Vrms isolation

FRC 34-pin connector

Easy to use

1.3 ORDERING INFORMATION

Following lists and describes part numbers for

the AR-B2001 boards and its accessories.

Part Number Description

AR-B2001 16 channel optical isolated

digital input card with user’s

manual

AR-B9006 36-pin screw terminal board

for AR-B2001 with 0.6m flat

cable

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The AR-B2001 Functional Block Diagram

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CHAPTER 2

INSTALLATION

Before using your AR-B2001, you must configure

its input mode and set the I/O port base ad-

dress. This chapter provides information about

setting the jumpers and switches. Pin assign-

ment of the I/O connector are also provided. Fig-

ure 2-1 shows the jumper, switch and component

locations of the AR-B2001 card.

2.1 BASE ADDRESS SETTINGS

There is one DIP switch located on the AR-

B2001 card. It is used to select the base port

address of the AR-B2001. The operation of AR-

B2001 is controlled through the input ports. Four

consecutive I/O ports are used by AR-B2001.

The Base Address of these I/O ports is selected

by using Base Address switch SW1. The AR-

B2001 is factory configured for a Base Address

of 3E0 Hex. If this Base Address is already oc-

cupied, you will need to change the Base Ad-

dress switch setting. It is essential that each pe-

ripheral device, such as an AR-B2001, be as-

signed a unique Base Address within the range

of 200 to 3fc Hex and that the address is on a

4-byte boundary. Figure 2-2 shows the Base Ad-

dress Switch. Use Table 2-1 as an aid for se-

lecting an unoccupied Address.

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Figure 2-1 AR-B2001 Board Layout.

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DIP SW ADDRESS Address Value

LINE Hex. Dec.

Switch 1 A2 4 4

Switch 2 A3 8 8

Switch 3 A4 10 16

Switch 4 A5 20 32

Switch 5 A6 40 64

Switch 6 A7 80 128

Switch 7 A8 100 256

Switch 8 A9 200 512

Table 2-1 Base Address switch

BASE ADDRESS=

200*A9+100*A8+80*A7+40*A6+20*A5+10*A4+8*A3+4*A2

(Hex.)

-or-

512*A9+256*A8+128*A7+64*A6+32*A5+16*A4+8*A3+4*A2

(Dec.)

A9.....A2 = 0 If switch is ON

A9.....A2 = 1 If switch is OFF

Setting the switch to the "ON" position indicates

logical "0" and setting the switch to the "OFF"

poition indicates logical "1". The following switch

setting represents an address of 3E0 Hex.

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12345678

DIP

Hex Range DEVICE

00-FF Reserved For System

170-178 Fixed Disk 1

1F0-1F8 Fixed Disk 0

201 Game Port

208-20A EMS Register 0

218-21A EMS Register 1

278-27F Parallel Printer Port 3 (LTP3)

2E8-2EF Serial Port 4 (COM4)

2F8-2FF Serial Port 2 (COM2)

378-37F Parallel Printer Port 2 (LTP 2)

3B0-3BF MonO Display and Parallel Port 1 (LPT1)

3C0-3CF EGA/VGA Adapter

3D0-3DF Color/Graphics Monitor Adapter

3E8-3EF Serial Port 3 (COM3)

3F0-3F7 Diskette Controller

3F8-3FF Serial Port 1 (COM1)

Table 2-2 IBM PC I/O Address Map

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2.2 INPUT MODE SETTINGS

There are 16 jumper blocks which are used to

set either dry contact input mode or voltage input

mode. Each jumper block selects the input mode

for one individual channel.

Table 2-3 lists these jumper blocks and their re-

spective channels.

Jumper Bolck Channel Port

JP1 0 Bit 0 of port 1

JP2 1 Bit 1 of port 1

JP3 2 Bit 2 of port 1

JP4 3 Bit 3 of port 1

JP5 4 Bit 4 of port 1

JP6 5 Bit 5 of port 1

JP7 6 Bit 6 of port 1

JP8 7 Bit 7 of port 1

Table 2-3 Relationship Between Jumper Blocks

and Input Channels

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Jumper Bolck Channel Port

JP9 8 Bit 0 of port 2

JP10 9 Bit 1 of port 2

JP11 10 Bit 2 of port 2

JP12 11 Bit 3 of port 2

JP13 12 Bit 4 of port 2

JP14 13 Bit 5 of port 2

JP15 14 Bit 6 of port 2

JP16 15 Bit 7 of port 2

Table 2-3 Relationship Between Jumper Blocks

and Input Channels (continued)

To select dry contact input mode, insert the

jumpers into the right side of the jumper block.

JP1 to JP16

(Dry contact input)

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