ATEN CE-250 User manual

KVM Extender
CE-250
User Manual
Read this manual thoroughly and follow the installation
procedures carefully to prevent any damage to the CE-250
and/or the devices it connects to.
©Copyright 2000-2003 Aten® International Co., Ltd.
Manual Part No. PAPE-1221-100
Printed in Taiwan 01/2003
All brand names and trademarks are the registered property of their
respective owners.

Packing Checklist
1 x CE-250L KVM Extender Local Unit
1 x CE-250R KVM Extender Remote Unit
1 x CS Custom KVM Cable
2 x Power Adapters
1 x User Manual
1 x Quick Start Guide
If anything is damaged or missing, contact your dealer.
NOTE: This equipment has been tested and found to comply with 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.
If this equipment does cause harmful 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:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment to an outlet on a circuit different from that to
which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Overview
Because the CE-250 KVM Extender System allows access to a computer system
from a remote console (keyboard, monitor, and mouse), it is perfect for factory
and construction sites, or any type of installation where the console needs to be
kept in an convenient location, but you want the system equipment to reside in a
safe place - away from dust, dirt, and harsh environmental influences.
The CE-250 System is also useful for control and security purposes, where you
can have the system unit in a secure area at the same time that you put the
console in a location that offers convenient access.
The CE-250 KVM Extender provides the ideal means to access the remote system
box, since it improves on previous designs by using inexpensive Category 5
cable - the kind commonly used in Ethernet networks - instead of bulkier, more
expensive, standard cables. Category 5 cabling makes for a much neater, more
convenient, more reliable data transfer connection.

The CE-250 features a custom ASIC to ensure the utmost in reliability and
compatibility, and can also sense the distance to the system, and automatically
adjust the gain to compensate.
Setup is as easy as can be - simply connect the computer system box and local
console to the Local CE-250 Module; run the Cat. 5 cable to the Remote CE-250
Module (up to 150 meters away); and plug the remote console into the Remote
Module.
Note:
You can control numerous remote systems from a single console by
combining the CE-250 with a KVM switch.
Features
Built-in ASIC for Greater Reliability and Compatibility
Category 5 Cable to Connect the Local and Remote Units - Up To 150 m
Apart
Dual Console Operation - Control Your System From Both the Local and
Remote PS/2 Keyboard, Mouse, and Monitor Consoles
Push Button Selection of the Active Console
High Resolution Video - Up To 1280 x 1024
Supports VGA, SVGA, and Multisync Monitors
Local Monitor Supports DDC; DDC2; DDC2B
Automatic Gain Control - Automatically Adjusts Signal Strength to
Compensate for Distance
System Requirements
Consoles
The console must consist of the following components:
A VGA, SVGA, or Multisync monitor capable of the highest resolution that
you will be using on any computer in the installation
A PS/2 style keyboard
A PS/2 style mouse
1. If you connect a DDC type monitor to the Local unit, the
monitor that connects to the Remote unit must be able to
support the highest video resolution that the DDC monitor can
provide.
Note:
2. You must use the same brand and model of mouse on both the
local and remote units.

Computers
The following equipment must be installed on each computer that is to be
connected to the system:
With PS/2 Type Connectors:
A VGA, SVGA or Multisync card.
A 6-pin mini-DIN mouse port.
A 6-pin mini-DIN keyboard port.
With AT Type Connectors:
A VGA, SVGA or Multisync card.
A DB-9 (standard serial), mouse port plus mouse adapter (part #
2A-105).*
A 5-pin DIN (standard AT), keyboard port plus keyboard adapter
(part # 2A-106).*
*Not included - requires separate purchase.
Cables
Although it is possible to use standard extender cables to link computers
with PS/2 type keyboard and mouse ports to the CE-250L, for optimum
signal integrity and to simplify the layout, we strongly recommend that
you use the high quality CS Custom KVM Cable that is provided with this
package.
It is not possible to use standard extender cables to link computers with
AT type keyboard and mouse ports to the CE-250L. For those computers,
using CS Custom KVM Cables must be used.
Category 5 cable is required to connect the local and remote CE-250
units. Using cable of a lesser standard will result in degrading the video
signal.
Components
CE-250L (Local Unit) Front View

1. Operating Mode Selection Switch
Pressing this button cycles you through the operating mode choices:
Local: only the local console can control the system(s);
Auto: both consoles can control the system(s)).
2. LEDs
The Local Unit has two LEDs to indicate the Operating Status of the
Local and Remote units.
3. Mouse Port
The local PS/2 mouse plugs into this connector.
4. Keyboard Port
The local PS/2 keyboard plugs into this connector.
5. Monitor Port
The local monitor plugs into this connector.
6. Remote I/O
The Category 5 cable that connects to the Remote Unit plugs into this
connector.
7. Power Jack
The cable from the AC Power Adapter plugs into this jack.
CE-250L (Local Unit) Rear View

1. Monitor Port
The HDB-15 Video connector of the KVM cable that connects to the
computer's Video port plugs into this connector.
2. Keyboard Port
The keyboard connector of the KVM cable that connects to the
computer's Video port plugs into this connector.
3. Mouse Port
The mouse connector of the KVM cable that connects to the computer's
Video port plugs into this connector.
Note: If you are combining the CE-250 with a KVM switch, the KVM cable
connects back to the respective ports on the Console section of the
switch.
CE-250R (Remote Unit) Front View

1. LEDs
The Remote Unit has two LEDs (Power and On Line) to indicate the
Operating Status of the Local and Remote units.
2. Mouse Port
The remote PS/2 mouse plugs into this connector.
3. Keyboard Port
The remote PS/2 keyboard plugs into this connector.
4. Monitor Port
The remote monitor plugs into this connector.
5. Remote I/O
The Category 5 cable that connects to the Local Unit plugs into this
connector.
6. Power Jack
The cable from the AC Power Adapter plugs into this jack.
Installation
Setting up the KVM Extender System is simply a matter of plugging in the
cables:
1. Make sure that all the equipment to be connected up is powered Off.
2. Plug the cables from the local console devices (mouse, keyboard,
monitor), into their ports on the Console side of the Local Unit (CE-
250L). Each port is marked with an appropriate icon to indicate which it
is.
3. Plug the appropriate connectors on the KVM cable supplied with this
unit into the CPU side of the CE-250L. Each connector is marked with an
appropriate icon to indicate which it is.
Note: The female monitor connector is the one that plugs into the CE-
250L.
4. Plug the connectors on the other end of the KVM cable into the
appropriate ports on the computer (or Console section of the KVM
switch - if you are using one). Each connector is marked with an
appropriate icon to indicate itself.
5. Plug either end of the Category 5 cable into the CE-250L's Remote I/O
port.
6. Plug one of the power adapters (supplied with this package) into an AC
source; plug the adapter's power cable into the CE-250L's Power Jack.
7. Plug the other end of the Category 5 cable into the I/O port of the
Remote Unit (CE-250R).

8. Plug the cables from the remote console devices (mouse, keyboard,
monitor), into their ports on the Console side of the CE-250R. Each port
is marked with an appropriate icon to indicate itself.
9. Plug the second power adapter (supplied with this package) into an AC
source; plug the adapter's power cable into the CE-250R's Power Jack.
Operation
The Local and Remote Units each have two LEDs to indicate their operating status, as
shown in the tables, below:
CE-250L (Local Unit)

Operating Mode
LED
Local Auto
Local Lights to indicate that the
local console is active (the
Remote LED is out).
1. Lights when the local console is
active (the Remote LED is out).
2. Turns off when the remote
console is active (the Remote
LED turns on)
3. Flashes on and off alternately
with the Remote LED when
neither console is active.
Remote The LED is off. 1. Lights when the remote console
is active (the Local LED is out).
2. Turns off when the local console
is active (the Local LED turns
on).
3. Flashes on and off alternately
with the Local LED when neither
console is active.
CE-250R (Remote Unit)
LED Indication
Power 1. Lights steadily to indicate that the connection to the
Local Unit (CE-250L) is ok.
2. Flashes when there is a problem with the connection
to the Local Unit (CE-250L).
On Line 1. Lights when the Remote console is active.
2. Turns off when the Local console is active.
3. Is Off when there is a problem with the connection to
the Local Unit.
Appendix
Troubleshooting
Symptom Action

No Video Make sure that all cables are securely plugged into their
sockets.
TP Wiring Diagram
TP Pin Assignments
Pin Assignment
1 V OUT B
2 /V OUT B
3 V OUT G
4 V OUT R
5 /V OUT R
6 /V OUT G
7 /DO
8 DO
Specifications
Function CE-250L CE-250R
Keyboard 2 x 6 pin mini-DIN
female
6 pin mini-DIN female
Mouse 2 x 6 pin mini-DIN
female
6 pin mini-DIN female
Monitor 1 x 15 pin HDB male
1 x 15 pin HDB female
1 x 15 pin HDB female
Connectors
Unit to Unit 8P8C Jack
LEDs 1 Local
1 Remote
1 Power On
1 On Line
Function Keys Local / Auto Select
Button
N/A
Cable Length 150m [500'] (max.)