Acrosser Technology AR-B2104 Manuale utente
ACROSSER
TECHNOLOGY
1
COPYRIGHT
Copyright 1995 by Acrosser Technology Co., Ltd. All rights re-
served. No part of this publication may be reproduced, transmit-
ted, transcribed, stored in a retrieval system, or translated into
any language or computer language, in any form or any means,
electronic, mechanical, magnetic, optical, chemical, manual or
otherwise, without the prior written consent of Acrosser Technol-
ogy.
Acrosser, IBM, PC/XT/AT are registered trademarks.
DISCLAIMER
Acrosser Technology makes no representations or warranties
with respect to the contents hereof and specifically disclaims
any implied warranties of merchantability or fitness for any par-
ticular purpose. Further more, Acrosser Technology reserves
the right to revise this publication and to make changes from
time to time in the contents hereof without obligation of Acrosser
Technology to notify any person of such revision or changes.
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TECHNOLOGY
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RETURNING YOUR CARD FOR SERVICE
If your card requires servicing, contact the dealer from whom
you purchased the product for service information. If you need to
ship your card to us for service, be sure it is packed in a protec-
tive carton. We recommend that you keep the original shipping
container for this purpose.
You can help assure efficient servicing of your product by follow-
ing these guidelines:
1. Include your name, address, telephone and facsimile num-
ber where you may be reached during the day.
2. A description of the system configuration and/or software
at the time of malfunction.
3. A brief description of the symptoms.
TECHNICAL SUPPORT AND USER COMMENTS
User comments are always welcome as they assist us in im-
proving the usefulness of our products and the understanding of
our publications. they form a very important part of the input
used for product enhancement and revision.
We may use and distribute any of the information you supply in
any way we believe appropriate without incurring any obligation.
You may, of course, continue to use the information you supply.
Please send your comments to Acrosser Technology Co., Ltd.
or your local sales representative.
ACROSSER
TECHNOLOGY
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STATIC ELECTRICITY PRECAUTIONS
Before removing the board from its anti-static bag, read this
section about static electricity precautions.
Static electricity is a constant danger to computer systems. The
charge that can build up in your body may be more than suffi-
cient to demage integrated circuits on any PC board. It is, there-
fore, important to observe basic precautions whenever you use
or handle computer components. Although areas with humid cli-
mates are much less prone to static build-up, it is always best to
safeguard against accidents which may result in expensive re-
pairs. The following measures should generally be sufficient to
protect your equipment from static discharge:
1. Touch a grounded metal object to discharge the static elec-
tricity in your body (or ideally, wear a grounded wrist strap).
2. When unpacking and handling the board or other system
component, place all materials on an antic static surface.
3. Be careful not to touch the components on the board, espe-
cially the "golden finger" connectors on the bottom of every
card.
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CHAPTER 1 INTRODUCTION
1.1 GENERAL DESCRIPTION
The AR-B2104 card is an inexpensive 24 channel opto-isolated
open-collector output interface card for IBM PC/XT/AT or com-
patible computers. It can be easily installed in any I/O slot inside
the computer while I/O connections are made through a 37-pin
D-type connector which extends out the rear of the computer. All
outputs feature high-voltage (50V max.) outputs with common-
cathode clamp diodes for switching inductive loads. The collec-
tor-current rating of each darlington pair is 500 milliamperes.
The AR-B2104 can be used in various applications including
relay drivers, hammer drivers, lamp drivers, display drivers
(LED and gas discharge), line drivers, and logic buffers.
The AR-B2104 is configured as three independent 8-bit ports.
Controlling the outputs is as simple as writing an 8-bit word to
either of the ports. The output status can be read back by read-
ing the same address for verification. A power-up reset scheme
is implemented to insure that all outputs stay in their power-off
(high impedance) state when power is first applied to the host
computer. Each channel is equipped with an LED indicator for
monitoring its ON/OFF status.
AII external I/O devices are connected through a 37 pin D-type
connector. Connection to the AR-B2104 can be greatly simpli-
fied by adding the optional AR-B9007 screw terminal board.
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1.2 FEATURES
# 24 photo-couple isolated open-collector output
# Output status read back
# 2500 Vrms isolation
# Up to 0.5A/50V of output driving capacity
# 24 LED status indicators
# D-type 37-pin connector
# Easy to use
1.3 ORDERING INFORMATION
The following lists and describes part numbers for the AR-
B2104 cards and its accessories.
Part Number Description
AR-B2104 24 channels photo-couple isolated
open-collector output card with user’s
m
AR-B9007 37-pin screw terminal board for AR-B2
with 0.6m flat cable
ACROSSER
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CHAPTER 2 INSTALLATlON
Before using your AR-B2104, you must set the base address of
the I/O port. This chapter provides information on how to set the
base address switch. Pin assignments of the I/O connector is
also provided. Figure 1-2 shows the switch and component lo-
cations of the AR-B2104 card.
2.1 BASE ADDRESS SETTING
There is one DIP switch (SW1) located on the AR-B2104 card. It
is used to select the base port address of the AR-B2104. The
operation of AR-B2104 is controlled through the output ports.
Three consecutive I/O ports are used by the AR-B2104. The
base address of these output ports are selected by using base
address switch SW1. The AR-B2104 is factory-configured for a
base address of 3E0 Hex. lf this base address is already occu-
pied, you will need to change the base address switch setting. lt
is essential that each peripheral device, such as an AR-B2104,
be assigned a unique base address within the range of 100 to
3FC Hex. and that the address is on a 4-byte boundary. Use
Table 2-1 (next page) as a guide to select an unoccupied ad-
dress.
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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)
300-31F Prototype Card/Streaming Type Adapter
378-37F Parallel Printer Port 2 (LTP 2)
380-38F SDLC, Bisynchronous 2
3A0-3AF Bisynchronous 1
3B0-3BF Monochrome Display and Parallel Printer Port 1
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 2-1 I/O port address map
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The following shows the base address switchs (SW1) and their
respective address line.
SW1 ADDRESS Address Value
LINE Hex. Dec.
Switch 8 A2 4 4
Switch 7 A3 8 8
Switch 6 A4 10 16
Switch 5 A5 20 32
Switch 4 A6 40 64
Switch 3 A7 80 128
Switch 2 A8 100 256
Switch 1 A9 200 512
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 = 1 If switch is ON
A9.....A2 = 0 If switch is OFF
Setting the switch to the "ON" position indicates logical "1" and
setting the switch to the "OFF" poition indicates logical "0". The
following switch (next page) setting represents an address of
3E0 Hex.
ACROSSER
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ON
12345678
SW1
2.2 MAIN I/O CONNECTOR
The AR-B2104 is equipped with one 37-pin D-type male con-
nector to control open-collector output. This connector and its
signal conductor functions are described in the following table.
ACROSSER
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PIN FUNCTION PIN FUNCTION
1 CH1 20 CH20
2 CH2 21 CH21
3 CH3 22 CH22
4 CH4 23 CH23
5 CH5 24 CH24
6 CH6 25 Dcom
7 CH7 26 Dcom
8 CH8 27 Dcom
9 CH9 28 Ground
10 CH10 29 Ground
11 CH11 30 Ground
12 CH12 31 Ground
13 CH13 32 Ground
14 CH14 33 Ground
15 CH15 34 Ground
16 CH16 35 Ground
17
CH17
36
Ground
Ground : Common ground (external power ground)
Dcom : Common-cathode of clamp diodes (Must be con-
nected to external power V+ when controlling inductive
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