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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 immediatley connects and
stays on the port until the print job has finished.

B

Sliding the switch to the B position (the extreme right), 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 left), 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 Female (DTE)

Port Selection

Automatic / Selectable

Timeout

10 / 60 secs.

Operating Temp.

5 to 40˚ C

Summary of Contents for AS-251S

Page 1: ...05 001 Printed in Taiwan 05 2002 All brand names and trademarks are the registered property of their respective owners Packing Checklist 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 light weight compact design and requi...

Page 2: ...or of the AS 251S 2 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 3 Use a DB 25 male to female serial cable to connect your printer s serial port to the C connector of the AS 251S 4 Turn on the power to all the equipment 5 Switch Setting There are two slide switches located on the unit s side panel that are used to con...

Page 3: ...ll 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 left 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 s...

Page 4: ...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...

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