ATen SXP325A Manual de Usario

ATen Cables para PC y periféricos SXP325A

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This package contains:
•1 Bidirectional Serial/Parallel Converter (SXP-320A or SXP-325A)
•1 AC 9V 200mA Power Adapter
•1 User Manual
Read this guide thoroughly and follow the installation and operation
procedures carefully to prevent any damage to the hub and/or any of the
devices it connects to.
All brand names and trademarks are the registered property of their respective owners.
USER'S MANUAL
Table of Contents
Overview
Features
Installation
Default Configuration
DIP Switch Settings
Cabling
Operation
Appendix
Troubleshooting
Specifications
RS-232C Interface Specification
Centronics Interface Specification
Centronics Interface Timing Chart
Preventing Radio & TV Interference
Overview
The SXP-320A / SXP-325A are interface converters that
allow Centronics and RS-232 devices to communicate
with each other (a computer with an RS-232 output to a
Centronics printer, for example).
Both units are bidirectional enabling you to convert from
serial to parallel or parallel to serial. The primary difference
between them is that the SXP-325A is configured with 512
KB of memory allowing it to serve as a printer buffer,
whereas the SXP-320A has no memory.
These two way converters provide a DB-25 RS-232C (DCE)
compatible connector, and a C-36 Centronics connector.
The serial baud rate is from 1200 to 115200 bps. (selectable
by DIP Switch). The parallel interface speed for the (non-
buffered) SXP-320A is 11.52 KB/sec; for the (buffered) SXP-
325A, it is 1.5 MB/sec.
The units support both hardware and software (XON/XOFF)
handshaking. Setup is extremely easy. All that is involved
is setting the DIP Switch and connecting the cables.
Front View
Rear View
Features
• DIP Switch Sets Data Direction
• Built In Buffer for Efficient Operation (SXP-325A)
• Both Hardware and XON/XOFF Handshaking
• Easy Installation
• Compact Size
Installation
Switch Configuration Overview:
The SXP-320A/325A is configured by setting an eight
segment DIP Switch as follows:
An explanation of each DIP Switch setting is given below.
Note: 1. When the segment is set in the direction of the
arrow, it is ON.
2. In each table, the default setting is highlighted
Conversion Direction:
Cabling
Serial to Parallel:
When performing a Serial to Parallel interface conversion:
1. Plug the female end of a 25/9-pin to 25/9-pin
male/female serial cable into the PC's serial port
2. Plug the male end of the 25-pin to 25-pin male/female
serial cable into the SXP-320A/SXP-325A's serial
connector
3. Plug the female end of a C-36 to C-36 male/female
printer cable into the SXP-320A/SXP-325A's printer
connector
4. Plug the male end of the C-36 to C-36 male/female
printer cable into the printer.
If your serial cable is long enough, you can plug Note:
the SXP-320A/SXP-325A directly into the printer,
without the need for a printer cable.
5. Plug the Power Adapter into an AC source; plug the
Power Adapter cable into the SXP-320A/SXP-325A's
power jack.
Setting the Switches
Baud Rate:
The baud rate is set with DIP Switch segments 1 - 3, as
shown in the table, below
Handshake:
Data and Stop Bits:
Parity:
Parallel to Serial:
When performing a Parallel to Serial interface conversion:
1. Plug the male end of a 25-pin (male) to C-36 (female)
printer cable into the PC's parallel port
2. Plug the female end of the 25-pin to C-36 male/female
printer cable into the SXP-320A/SXP-325A's Centronics
connector
3. Plug the male end of a 25-pin to 25-pin male/female
serial cable into the SXP-320A/SXP-325A's serial
connector
4. Plug the female end of the 25-pin to 25-pin male/female
serial cable into the printer's serial port
5. Plug the Power Adapter into an AC source; plug the
Power Adapter cable into the SXP-320A/SXP-325A's
power jack.
Switch Purpose
1 
2  Baud rate setting
3
4 Handshake setting
5 Data and Stop Bits setting
6  Parity setting
7
8 Conversion Direction setting
DIP Switch Segment Baud Rate
(bits per second)
1 2 3
ON ON ON 1200
ON ON OFF 2400
ON OFF ON 9600
ON OFF OFF 14400
OFF ON ON 19200
OFF ON OFF 38400
OFF OFF ON 57600
OFF OFF OFF 115200
DIP Switch Segment Handshake
4
ON XON/XOFF
OFF Hardware
DIP Switch Segment Data Bits Stop Bits
5
ON 7 2
OFF 8 1
DIP Switch Segment Parity
6 7
ON Either Parity Inhibit
OFF ON Even Parity
OFF OFF Odd Parity
DIP Switch Segment Conversion Direction
8
ON Parallel to Serial
OFF Serial to Parallel
SXP-320A / SXP-325A
DCE
DB-25
2
3
4
5
6
20
7
Device Connector's Pin #
DCE DTE DCE DTE
DB-9 DB-9 DB-25 DB-25
2 3 3 2
3 2 2 3
8 7 5 4
7 8 4 5
4 6 20 6
6 4 6 20
5 5 7 7
Cables
a 25-pin/25-pin cable
or a 9-pin/25-pin cable
Tx  Rx
Rx Tx
RTS  CTS
CTS  RTS
DSR  DTR
DTR  DSR
GND  GND
Device's Pin #
DB-25 C-36
1 1
2-9 2-9
10 10
11 11
12 12
13 13
14 14
15 32
16 31
17 36
18-25 19-30
a 25-pin/36-pinCables
or a 36-pin/36-pin cable
STROBE
D0-D7
ACK
BUSY
PE
SLCT
AUTOFEED-XT
ERROR
INIT
SLCT-IN
GND
SXP-320A / SXP-325A
C-36
1
2-9
10
11
12
13
14
32
31
36
19-30
DIP-SW
PARALLEL PORT
POWER ON LED
AC 9V JACK
RESET KEYSERIAL PORT
©Copyright 1999 ATEN® nternational Co., Ltd.I
Manual Part NO. PAPE -1145-100
Printed in Taiwan 06/1999
PC
9 or 25 Pin Female to 25 Pin Male Cable
36 Pin Female to 36 Pin Male Cable
SXP-320A / SXP-325A
SXP-320A / SXP-325A
25 Pin Male to 36 Pin Female
25 Pin Male to 25 Pin Male Cable
PC
CONVERTER
Serial Port Cabling
Parallel Port Cabling
910 11
1312
8
14 15
Limited Warranty
IN NO EVENT SHALL THE DIRECT VENDOR'S LIABILITY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE
USE OF THE PRODUCT, DISK, OR ITS DOCUMENTATION
EXCEED THE PRICE PAID FOR THE PRODUCT.
The direct vendor makes no warranty or representation,
expressed, implied, or statutory with respect to the
contents or use of this documentation, and especially
disclaims its quality, performance, merchantability, or
fitness for any particular purpose.
The direct vendor also reserves the right to revise or update
the device or documentation without obligation to notify
any individual or entity of such revisions, or update. For
further inquiries, please contact your direct vendor.
Radio & TV Interference
This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency
energy and if not installed and used in accordance with the
instructions, may cause harmful interference to radio
communications. However, there is no guarantee that
interference will not occur in a particular installation.
Radio & TV Interference
Warning. This equipment generates, uses and radiates
radio frequency energy and if not installed and used in
accordance with the instruction manual may cause
interference to radio and television reception. It has been
tested and found to comply with the limits for a Class A
computing device in accordance with the specifications in
Subpart J of Part 15 of the FCC Rules, which are designed
to provide reasonable protection against such interference
when operated in a commercial environment. Operation of
this equipment in a residential area is likely to cause
interference, in which case the user at his own expense
will be required to take whatever measures may be
required to correct the interference.
If this equipment does cause interference to radio or
television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following
measures:
1. Reorient the receiving antenna.
2. Relocate the computer with respect to the receiver.
3. Move the computer away from the receiver.
4. Plug the computer into a different outlet so that the
computer and receiver are on different branch circuits.
5. Ensure that the mounting screws, attachment connector
screws and ground wires are tightly secured.
6. Ensure that good quality shielded and grounded cables
are used for data communications.
If necessary, the user should consult the dealer or an
experienced radio/television technician for additional
suggestions.
Appendix
Troubleshooting
If the above solutions fail to alleviate the problem, contact
your dealer for help.
Operation
When operating the SXP-320A/SXP-325A, please take note
of the following:
1. Since the SXP-320A/SXP-325A is a DCE device, the
serial device it connects to must be configured as a DTE
device.
2. In DCE mode, the unit uses RTS/DTR (pins 5 and 6)
handshaking. When RTS/DTR is at +9V, the computer is
allowed to transmit data. When the unit is busy, it sets
the RTS/DTR line to -9V, and the computer stops
transmitting data. Consequently, if the computer can
not identify the RTS/DTR signal, it may result in data
loss.
3. The unit is powered by the host RS-232C interface. In
addition to the TxD line, it is recommended that the host
RS-232C interface (MC 1488, SN 75188, or equivalent
IC's), also support RTS and DTR lines, which provide a
power source above 9V, to ensure normal operation of
the unit.
4. The unit's baud rate, data length, stop bits and parity
settings must be configured to match those of the
computer.
5. You must reset the parallel printer before printing.
RS-232C Interface Specification
The RS-232C Interface DCE mode (default) specification is
given in the table, below:
Centronics Interface Specification
The Centronics Interface Specification is given in the table,
below:
Centronics Interface Timing Chart
Specifications
Problem Cause Solution
Power LED
does not light
No Data
Transmission     
 
Incorrect Data
Received 
Make sure that there is no problem
with the AC source, and that the AC
adapter is fully operational.
Make sure that the adapter is
correctly plugged into the AC source
and that the cable is fully plugged
into the unit's power jack.
Make sure that all cables are
properly plugged in and fully seated
in their connectors.
Rewire the cables making sure they
are correctly wired
If powered Off, turn the device On.
Otherwise, reset the Transmitting or
Terminal device.
Change the Transmitting or Terminal
device to the correct DTE mode, or
user's cross line.
Rewire the cable lines to be sure they
are properly connected.
Set the DIP Switch segments to their
proper settings.
Unit is not receiving
power.
Cables are not properly
plugged in.
Cables are not properly
wired.
Transmitting or Terminal
device has not been set
Ready for data transfer.
Transmitting or Terminal
device is in incorrect DTE
mode.
Lines are not properly
connected.
Incorrect serial
transmission DIP Switch
settings
Pin Name Function
1 STB DATA STROBE
2 DATA BIT 1 DATA BUS
3 DATA BIT 2
4 DATA BIT 3
5 DATA BIT 4
6 DATA BIT 5
7 DATA BIT 6
8 DATA BIT 7
9 DATA BIT 8
10 ACK DATA RECEIVED ACKNOWLEDGE
11 BUSY DEVICE BUSY OR NOT
12 PAPER EMPTY PULL UP
13 SLCT PULL UP
14 A-F PULL UP
15 N.C.
16-17 GROUND GROUND
18 N.C.
19-30 GROUND GROUND
31 INIT PULL UP
32 ERR PULL UP
33 GROUND GROUND
34-35 N.C.
36 SL-1 PULL DOWN
DATA
STB
BUSY
ACK
1
0
0.25
0.5 US
(min)
1 US
(min)
1 US
(min)
0.5 US
(min)
0.5 US
(min)
0.5 US
0.25 US(min)
1 US
(min)
0.5 US
(min)
1
0
1
0
1
0
1 US
(min)
Pin Name Function
1 Ground Ground
2 RxD Receive Data
3 TxD Transmit Data
4 CTS Clear to Send
5 RTS Request to Send
6 DTR Data Terminal Ready
7 Ground Ground
8 CD Pull Up (+9V)
20 DSR Data Set Ready
Power Consumption AC 9V 150m A (max.)
Cable Distance Up to 9 m (30')
Connectors RS-232C DB-25 female DCE
Centronics C-36 male
Memory Size 512 KB(SXP-325A Only)
Interface Exchange In Serial or Parallel
Out Parallel or Serial
Serial Communications Mode DCE Only
LEDs Power (Green)
Microcontroller  ASIC
Function Key Reset
Buffer Speed
Serial 1200 - 115200 bps
Parallel 1.5 MB/sec. (max.)
Data Compression 8.5 : 1 (max.)
Temperature Operating 5˚ - 40˚ C
Storage -20˚ - 60˚ C
Humidity 0 - 80%
Housing  Plastic
Weight 120 g
Dimensions (L x W x H) 101 x 62 x 25.5 mm

Especificaciones del producto

Marca: ATen
Categoría: Cables para PC y periféricos
Modelo: SXP325A

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