AS/2
AUTO SWITCH
AS-411
P / AS-81
1P / AS-411S / AS-811S
User’s Manual
0
Copyright 1990 ATENB International CO., LTD.
Manual part NO. PAPE-0092-200
NOTICE
This manual is written for the Auto Switch products of AS-41 1 P/41 1 S and
AS-81
differences will be specified. The last character ‘P’ and ‘S’ of each model’s string
means the parallel interface and the serial interface respectively.
1P/811S.
Most of the operations of these models are the some, and
In this manual, ‘AS/2’ is used to represent all the models of AS-41 1
P/
AS-41 1 S and AS-81 1 P/81 1 S. When you purchase this product it should contain
the following items.
PACKAGE CHECKLIST
l
An AS/P(any one of AS-41 1 P/AS-41 1
l The Power Adapter
spec.
depends on the following product model,
S/AS-81 1
P/AS-81 1 S)
the power adapter supports AS-81 1 P model only.
Model Spec.
l
An
AS-411P
AS/2
Auto Switch User’s Manual
1
NONE
-
QUICK LOOK INTERFACE TABLE
I
MODEL
1
INPUT PORT OUTPUT PORT SUPPORTED SUPPORTED
1 -- ~~~~
4 CENTRONICS Female1 CENTRONICS Female
8 CENTRONICS Female
8
RS232C(DCE) Female 1 RS-232C(DTE) Male
1
CENTRONICS Female
1 RS-232C(DTE) Male
POWER ADAPTER 1 BUFFER CARD
No/yes*
Yes
NO
NO NO
Yes
Yes
NO
*The adapter comes with buffer card.
AS/2 is a trademark of
ATEN
International Co., Ltd. IBM PC, PC/XT and
PC/AT are trademarks of International Business Machines Corporation.
TABLE OF CONTENTS
FUNCTION OVERVIEW
l-l Introduction
l-2 Function Specifications
1-3 Product Limitation
INSTALLATION
Installation Procedure
2-l
2-2
DIP Switch Setting
2-3
As Buffer Card Installation
POWER ON PROCEDURE
Power On Procedure
3-l
3-2
Auto Switching Mode
3-3
Manual Switching Mode
APPENDIX A
APPENDIX B
APPENDIX C
....................................................................................
Trouble Shooting
Centronics Interface Timing Chart
Preventing Radio &TV Interference
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1
4
6
7
11
13
15
15
16
17
18
19
AS/2
Auto Switch
FUNCTION OVERVIEW
1 FUNCTION OVERVIEW
l-1 INTRODUCTION
The AS/2 is a high performance and low cost printer sharing device
which operates in either auto switching mode or manual switching mode. The
up to
AS/2 allows
devices. In the auto switching mode the AS/2 automatically locks on and
services the source device that requests to link with the common device.
However, in the manual switching mode the AS/2 works exactly the same way
conventional
as the
There are four models, AS-41 1 P, AS-41 1S AS-81 1 P and AS-81 1 S all
belong to the AS/2 auto switch products. These differences can be quickly
understood by reading the following table.
four or eight source devices to share one common destination
data switch.
AS-81 1 P
AS-41 1S
AS-811s
8CENTRONICSFemale
4
RS-232C(DCE)
8RS-232C(DCE)Female
Female
1
CENTRONICS
1 RS232C(DTE) Male
1
RS-232C(DTE)
Female
Male
The AS/2 tremendously improves the efficiency of your switching
applications. We suggest that you take a few moments to carefully read the
following instructions to ensure the maximum benefits and convenience your
AS/2 offers. The following figures are the AS/2's front views and rear views.
User’s Manual
1
FUNCTION OVERVIEW AS/2
1-2 FUNCTION SPECIFICATIONS
PARALLEL MODEL
FUNCTIONS
Power Supply
. . -
AS-41 1 P
I
/
DC
I
9V, 100mA* /
Cable Length
CONNECTOR INPUT
(DB-25)Female OUTPUT
Input Status
LED Printer Ready
Manual
4
CENTRONICS
1
CENTRONICS
4
1
1
Buffer Care (Extended) 256K/1 M/2M
Input Arbitration
Function Key
Input Port Selection
Time out Selection
Auto From Feed
Ooeration Temp.
1
First Come, First Serve
Manual Select
Auto or Manual
5 - 60 sec.
Enabled/Disabled
6M
AS-81 1 P
I
DC
9V, 100mA
I
8
CENTRONICS
1
CENTRONICS
Bytes
Auto Switch
8
1
1
Dimensions
1224xl54x615mm /205x97x230mn
*The adaptor comes with buffer card.
Fig. 1-2-l AS-41 1 P/AS-81 1 P’s Function Specifications
4
User’s Manual