ADDERLink Silver

DISCONTINUED - This product is no longer manufactured.


This product has been replaced by a newer version, we recommend the latest version of this product for new projects - see ADDERLink X2-Silver

Continued support on this product is still available to our existing customers, please contact our Support Team or your local Adder Office for more information.

Convenient and remote control of a PC or KVM switch over 200m (650 ft) of UTP cable. The ADDERLink Silver has all the features of the ADDERLink plus local KVM control and a remote KVM switch, for added flexibility.

The ADDERLink Silver is designed to control a PC or KVM switch remotely over a single network cable. Serial RS232 is featured as standard, making the ADDERLink Silver ideal for 'touch screen', remote industrial and other serial applications. Ideal for use in harsh, manufacturing environments, as well as broadcast and multimedia applications where the CPU can be located in a secure, clean and dirt free location.

The ADDERLink Silver local (transmitter) unit has a KVM console connection that enables the computer or KVM switch to be controlled by a local keyboard, monitor and mouse. The remote (receiver) unit has a computer connection and an integral KVM switch that enables the remote user to switch their KVM console to control either the computer connected to the receiver unit or the computer / KVM switch connected to the transmitter unit. Both the transmitter and receiver can be conveniently rackmounted in pairs by using the optional 1U rackmount kit.

Product codes
ADDERLink Silver

Product Features

Integrated KVM switch allows a computer to be connected at the remote location 

High SVGA video quality 

Compatible with all major operating systems including DOS, OS/2, UNIX, Windows, Netware and Linux 

Supports PC style (PS/2) keyboards and mice and many extra key, button and wheel features 

Also supports older style AT keyboards and RS232 mice 

Transparent' RS232 connection ensures maximum device support 

Distance of up to 200m (650 feet) supported between transmitter and receiver 

'Feed through' KVM console connection at local (transmitter) unit provides local control capability


Video resolutions

1600 x 1280 at distances up to 100 metres/330 feet, 1024 x 768 at distances up to 200 metres/650 feet.

Extension distance

Up to 200 metres / 650 feet using CATx cable (x=5,5e,6,7)

Extension technology

Differential analogue signalling for video signals, differential digital signalling for PS/2 keyboard, PS/2 mouse, RS232 signals. Signals are multiplexed so that only one CATx cable is required.

Devices supported

Supports PS/2 style keyboard, PS/2 style mouse, flat-screen and CRT style monitors with standard HD-15 video connectors. Also extends a transparent RS232 connection that may be used for touch-screens or a wide variety of other serial devices.

Local Console

Enables the computer or KVM switch to be controlled by a local keyboard, monitor and mouse.

Remote KVM switch

Enables the screen keyboard and mouse of the users PC to control both the desktop PC and the remote PC/KVM switch.

Video compensation

Adjustable video compensation amplifiers enable the video sharpness to be adjusted using the keyboard. Coarse and fine adjustment control is provided for quick setup. Settings are persistent even when the ADDERLink is powered off which means that setup only needs to be done once. Brightness adjustment is automatic.

Keyboard control

The cable equalisation are controlled in 'configuration mode' using the keyboard attached to the remote (KVM console-end) unit. Configuration mode is accessed using keyboard hotkeys. These hotkeys may also be used to lock the remote unit (if a password has been set). Hotkeys are variable and may be disabled if required. Feedback is provided to the user using the keyboard num, caps and scroll lights.


The remote and local units are fitted with a link/activity indicator that shows the link status and indicate keyboard and mouse data activity.

Computer / KVM switch compatibility

Compatible with desktop, rack mount and laptop PCs with PS/2 keyboard and mouse connections. May also be used with RS/6000, Alpha and SGI computers and a wide range of KVM switches. ADDER can provide a range of KVM switch and conversion cables for connection to PC, Sun and Macintosh computers that have USB or Sun (8-pin) connectors.

Operating system compatibility

Compatible with all major operating systems including DOS; OS/2; UNIX; MS Windows 9x, NT, 2000, XP, NetWare and RS6000.

Keyboard support

Supports PS/2 style keyboards with 6-pin mini-DIN connectors. Operates in modes, 1, 2 and 3 and supports individual typematic states per key. Supports standard layout keyboards and enhanced 'Internet style' keyboards with extra keys. Supports all keyboard language layouts.

Mouse support

Supports a wide range of PS/2 style 2 button, 3 button, wheel, IntelliMouse (3 button with wheel), IntelliMouse Explorer (5 button with wheel) and other mice that support the Microsoft ® mouse signalling protocols.


'Transparent' serial port operation ensures wide device compatibility without the need to configure baud rates or protocols on the ADDERLink to match your equipment. Auto baud rate sensing ensures that devices that switch baud rates (such as some touch screens) are supported. All handshake lines are supported for maximum compatibility. Baud rates up to 57,600 are supported.

Rack mount options

Both the local (computer-end) and remote (KVM console-end) units may be rack mounted in the ADDERLink rack mount chassis. This optional chassis enables 2 units to be mounted in 1U of 19-inch rack space.

Connectors (Local computer-end unit)

2 x 6-pin mini-DIN female keyboard connector, 2 x 6-pin mini-DIN female mouse connector, 2 x 15-pin high-density D-type female connector for monitor connection, 1 X 9 pin D type female for serial connection, 1 x RJ45 connector for CATx cable connection. 2.5mm DC jack for optional power adapter (only required for video only applications).

Connectors (Remote console-end unit)

2 x 6-pin mini-DIN female keyboard connector, 2 x 6-pin mini-DIN female mouse connector, 2 x 15-pin high-density D-type female connector for monitor connection, 1 X 9 pin D type male for serial connection, 1 x RJ45 connector for CATx cable connection. 2.5mm DC jack for power adapter.

Physical (Local computer-end unit)

Metal case (steel and stainless steel), 168mm x 136mm x 27mm, 526g

Physical (Remote console-end unit)

Metal case (steel and stainless steel 168mm x 136mm x 27mm, 526g


The console-end unit is powered by an external 5V DC, 2A power supply with an IEC power cable connection. A country specific power cord is provided. The computer-end unit is normally interface powered via the PS/2 keyboard connection but may alternatively be powered using an optional power supply. Both units are fused with auto resettable fuses.

Password protection mode

The ADDERLink may be locked using a hotkey combination from the keyboard if a password has been loaded into the unit. The unit may then only be unlocked using the password. The video is blanked whilst the remote unit is locked.


The ADDERLink is not suitable for linking between buildings.

Package contents

Local (computer-end) unit, remote (KVM console-end) unit, IEC style power supply and power cord, safety and installation leaflet, CD manual, stick on rubber feet.

Optional accessories

Optional power adapter for local unit (part code: PSU-IEC-5VDC)


FCC class A, CE marked


Operating Voltage: 100-240VAC, Power Frequency: 50-60Hz, Usage: 5VDC at 500mA

Temperature Tolerance

0 - 40 deg C (32 to 104 deg F)

Humidity Tolerance

5 to 60% non condensing

Associated products

ADDER Rackmount Kit RMK-AL

ADDER Rackmount products are designed to enable easy installation within the rack environment.

RMK-AL is for for ADDERLink®, ADDERLink Silver and ADDERLink Gold.


ADDER® Rackmount Kits are designed to enable easy installation within the rack environment.

RMK-AL-DUAL - 19" rackmount kit for 2 units. Suitable for the ADDERLink®, ADDERLink Silver and ADDERLink Gold.

Product Gallery


Where to buy

Adder products are purchasable through our key technology partners. You can find a partners on our where to buy page.

Where to buy


Are you interested in this product and would like to find out more?

Our team of KVM experts are on hand to help guide you through our extensive range of products, understand how Adder can help your KVM requirements and of course anwser any queries you may have.

Use this form to enquire about Adder's products and services. One of our IP KVM experts will be in touch with you as soon as possible.

If you need technical support, please click here instead