ATEN AS-251S 2-Port Compact Serial Auto Switch User Manual
- June 6, 2024
- Aten
Table of Contents
2 To 1 Serial (RS-232)
AUTO SWITCH
AS-251S
User Manual
Read this manual thoroughly and follow the installation procedures carefully
to prevent
any damage to the AS-251S and/or the devices it connects to.
©Copyright 2021 ATEN® International Co., Ltd.
Released: 2021-07-19
All brand names and trademarks are the registered property of their respective
owners.
Packing Checklist
AS-251S User Manual
- 1 x AS-251S 2 to 1 Serial (RS-232) Auto Switch
- 1 x User’s Manual
If anything is damaged or missing, contact your dealer.
Overview
This easy to install Auto Switch allows two computers to share a serial printer. Since it features a lightweight, compact, design, and requires no external power, it can be easily placed in any convenient location.
Features
- No External Power Required
- Automatic and Manual Selection
- Transparent to the User
- Easy to Install and Operate
- Compact size
Installation
- Make sure that all the equipment to be connected up is powered Off.
- Use a DB-25 male to female serial cable to connect your first computer’s COM1 or COM2 port to the A connector of the AS-251S.
- Use a DB-25 male to female serial cable to connect your second computer’s COM1 or COM2 port to the B connector of the AS-251S.
- Use a DB-25 male to female serial cable to connect your printer’s serial port to the C the connector of the AS-251S.
- Turn on the power to all the equipment.
Switch Setting
There are two slide switches located on the unit’s side panel that is used to configure the AS251S. The one on the left determines which port has access to the printer; the one on the right sets the timeout value.
Selected Port
The port that has access to the printer is determined with this three-position
slide switch as follows:
Position
|
Result
---|---
AUTO
| Under AUTO (the central position of the switch), access to the printer is automatic and is determined on a first-come-first-served basis. As soon as a signal is received, the switch immediately connects and stays on the port until the print job has finished.
B
| Sliding the switch to the B position (the extreme left), locks the switch on the B port and locks out the A port. Only signals from the computer connected to the B port will be sent to the printer. The B LED on the unit’s top panel lights (and the A LED is off) to indicate this.
A
| Sliding the switch to the A position (the extreme right), locks the switch on the A port and locks out the B port. Only signals from the computer connected to the A port will be sent to the printer. The A LED on the unit’s top panel lights (and the B LED is off) to indicate this.
Timeout
The timeout switch is a two-position switch:
- Slide the switch to the left position for a 10-second timeout.
- Slide the switch to the right position for a 60-second timeout.
Specifications
| Function | Specification |
|---|---|
| Cable Distance | 15 m |
| Input Connectors | 2 x DB-25 Female (DCE) |
| Output Connectors | 1 x DB-25 Male (DTE) |
| Port Selection | Automatic / Selectable |
| Timeout | 10 / 60 secs. |
| Operating Temp. | 5 to 40° C |
| Storage Temp. | -20 to -60° C |
| Humidity | 0 – 80% RH |
| Housing | Plastic |
| Weight | 130 g |
| Dimensions (L x W x H) | 105 x 85 x 26 mm |
Limited Warranty
IN NO EVENT SHALL THE DIRECT VENDOR S LIABILITY EXCEED THE PRICE PAID FOR THE
PRODUCT FROM DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
RESULTING FROM THE USE OF THE PRODUCT, DISK, OR ITS DOCUMENTATION.
The direct vendor makes no warranty or representation, expressed, implied, or
statutory with respect to the contents or use of this documentation, and
specially disclaims its quality, performance, merchantability, or fitness for
any particular purpose.
The direct vendor also reserves the right to revise or update device or
documentation without obligation to notify any individual or entity of such
revisions, or update. For further inquires please contact your direct vendor.
Compliance Statements
FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE STATEMENT
This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
The device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference,
and (2) this device must accept any interference received, including
interference that may cause undesired operation.
FCC Caution
Any changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate this equipment.
Warning
The operation of this equipment in a residential environment could cause radio
interference.
KCC Statement
Industry Canada Statement
This Class A digital apparatus complies with Canadian ICES-003.
CAN ICES-003(A)/NMB-003 (A)
RoHS
This product is RoHS compliant.