621R - Audio/video extender Kramer - Free user manual and instructions

Product Type	Audio/video extender (receiver)
Model	Kramer 621R
Video Resolution Support	Up to 1920x1200 (WUXGA)
Audio Support	Unbalanced stereo audio (3.5mm jack)
Input Connectors	1 x RJ-45 (for transmitter link), 1 x 3.5mm mini jack (audio)
Output Connectors	1 x 15-pin HD (VGA), 1 x 3.5mm mini jack (audio)
Power Supply	12V DC, 0.5A (included power adapter)
Power Consumption	6W (max)
Dimensions (W x D x H)	12.0 cm x 7.6 cm x 2.5 cm
Weight	0.3 kg
Operating Temperature	0 to 40°C
Storage Temperature	-20 to 60°C
Humidity	10% to 90% (non-condensing)
Maximum Cable Length (between transmitter and receiver)	Up to 100 m (CAT5/6)
Compliance	CE, FCC
Included Accessories	Power adapter, mounting brackets (optional)
Maintenance	Clean with dry cloth; avoid liquids and solvents
Safety	Use only provided power supply; keep vents unobstructed
Repairability	No user-serviceable parts; contact Kramer support

Frequently Asked Questions - 621R Kramer

What is the Kramer 621R?

The Kramer 621R is a audio/video extender receiver that works with a compatible transmitter to extend VGA video and stereo audio over long distances via CAT5/6 cable.

What is the maximum resolution supported?

The 621R supports resolutions up to 1920x1200 (WUXGA) at 60Hz.

What cables are needed for connection?

Use a CAT5e or CAT6 cable with RJ-45 connectors to link the transmitter and receiver. Also, VGA and 3.5mm audio cables for source and display.

Does it require external power?

Yes, the 621R requires a 12V DC power adapter (included) to operate.

Can I extend audio only?

No, the 621R is designed to extend both video (VGA) and audio simultaneously. It cannot transmit audio alone.

What is the maximum transmission distance?

With CAT5e/6 cable, the maximum distance is 100 meters (330 feet).

How do I set up the 621R?

Connect the transmitter to your source via VGA and audio, link the transmitter and receiver via CAT5e/6 cable, then connect the receiver to your display. Power both units.

Is the 621R compatible with Kramer transmitters?

Yes, it is designed to work with Kramer 621T and compatible models. Check the manual for details.

What should I do if there is no video output?

Verify all cable connections, ensure both units are powered, and check that the VGA input resolution is supported. Try a different CAT5e/6 cable.

How to clean and maintain the device?

Disconnect power and clean the casing with a soft dry cloth. Avoid using liquids or abrasive cleaners. Do not block ventilation slots.

USER MANUAL 621R Kramer

DVI Optical Receiver

621T/R Quick Start Guide

This guide helps you install and use your product for the first time. For more detailed information, go to http://www.kramerelectronics.com/support/product_downloads.asp to download the latest manual or scan the QR code on the left.

Step 1: Check what's in the box

621T/R DVI Optical Transmitter/Receiver 1 Power supply per unit (5V DC)

4 Rubber feet 1 Quick Start sheet

Save the original box and packaging materials in case you need to return your 621T/R for service.

Step 2: Install the 621T/R

Attach the rubber feet and place on a table or mount the 621T/R in a rack (using an optional RK-3T rack mount).

Step 3: Connect the inputs and outputs

Always switch off the power on each device before connecting it to your 621T/R.

graph TD
    A["PC"] --> B["OPTIC CABLE"]
    B --> C["DDC"]
    D["Display"] --> E["DVI OUT"]
    E --> F["12V DC"]
    G["Power Link"] --> H["OPTIC CABLE"]
    H --> I["DDC"]
    J["Power Link"] --> K["OPTIC CABLE"]
    K --> L["DDC"]
    M["Link"] --> N["CL R G B"]
    O["Link"] --> P["G B"]
    Q["Link"] --> R["B"]
    S["Link"] --> T["R"]
    U["Link"] --> V["B"]
    W["Link"] --> X["G"]
    Y["Link"] --> Z["B"]

Always use Kramer high-performance cables for connecting AV equipment to the 621T/R.

Step 4: Connect the power

Connect the 5V DC power adapter to each unit of the 621T/R and plug the adapters into the mains electricity.

Contents

1 Introduction 1

2 Getting Started 2

2.1 Achieving the Best Performance 2
2.2 Safety Instructions 3
2.3 Recycling Kramer Products 3

3 Overview 4

3.1 About the Power Connect™ Feature 5
3.2 Using Twisted Pair Cable 5

4 Defining the 621T, 621R DVI Optical Transmitter/Receiver 6

4.1 Defining the 621T DVI Optical Transmitter 6
4.2 Defining the 621R DVI Optical Receiver 7

5 Connecting and Operating the 621T, 621R 8

5.1 Connecting the 621T/621R DVI Optical Transmitter/Receiver 8
5.2 Operating the 621T/621R DVI Optical Transmitter/Receiver 10
5.3 Wiring the TP LINE IN / LINE OUT RJ-45 Connectors 10

6 Technical Specifications 12

Figures

Figure 1: 621T DVI Optical Transmitter 6
Figure 2: 621R DVI Optical Receiver 7
Figure 3: 621T and 621R DVI Optical Transmitter and Receiver System 8
Figure 4: Connecting the 621T, 621R DVI Optical Transmitter/Receiver 9
Figure 5: TP PINOUT 10

1 Introduction

Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been providing a world of unique, creative, and affordable solutions to the vast range of problems that confront video, audio, presentation, and broadcasting professionals on a daily basis. In recent years, we have redesigned and upgraded most of our line, making the best even better!

Our 1,000-plus different models now appear in 11 groups that are clearly defined by function: GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Routers; GROUP 3: Control Systems; GROUP 4: Format/Standards Converters; GROUP 5: Range Extenders and Repeaters; GROUP 6: Specialty AV Products; GROUP 7: Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9: Room Connectivity; GROUP 10: Accessories and Rack Adapters and GROUP 11: Sierra Products.

Congratulations on purchasing your Kramer 621T, 621R DVI Optical Transmitter/Receiver, which is ideal for the following typical applications:

• Digital display systems
- Flat panel displays, plasma display panels and projectors in conference rooms and auditoriums
- Kiosks with digital flat panel displays for information display

2 Getting Started

We recommend that you:

• Unpack the equipment carefully and save the original box and packaging materials for possible future shipment
• Review the contents of this user manual

Go to http://www.kramerelectronics.com/support/product_downloads.asp to check for up-to-date user manuals, application programs, and to check if firmware upgrades are available (where appropriate).

2.1 Achieving the Best Performance

To achieve the best performance:

• Use only good quality connection cables (we recommend Kramer high-performance, high-resolution cables) to avoid interference, deterioration in signal quality due to poor matching, and elevated noise levels (often associated with low quality cables)
• Do not secure the cables in tight bundles or roll the slack into tight coils
• Avoid interference from neighboring electrical appliances that may adversely influence signal quality
• Position your Kramer 621T, 621R away from moisture, excessive sunlight and dust

This equipment is to be used only inside a building. It may only be connected to other equipment that is installed inside a building.

2.2 Safety Instructions

Caution: There are no operator serviceable parts inside the unit

Warning: Use only the Kramer Electronics input power wall adapter that is provided with the unit

Warning: Disconnect the power and unplug the unit from the wall before installing

Warning: Do not look directly into the LC receptacles of the 621T, while powered on, although this product is regulated strictly enough to operate under the Laser Class 1, classified by CDRH/FDA for eye safety

2.3 Recycling Kramer Products

The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected and recycled. To comply with the WEEE Directive, Kramer Electronics has made arrangements with the European Advanced Recycling Network (EARN) and will cover any costs of treatment, recycling and recovery of waste Kramer Electronics branded equipment on arrival at the EARN facility. For details of Kramer's recycling arrangements in your particular country go to our recycling pages at http://www.kramerelectronics.com/support/recycling/.

3 Overview

The high-performance Kramer 621T and 621R are an optical transmitter and receiver pair for DVI signals for computer graphics signals. They support resolutions of up to 1920x1200 at 60Hz and HDTV resolutions of up to 1080p at 60Hz. The 621T converts a DVI signal into an optical signal and the 621R converts the optical signal back to DVI.

The 621T and 621R have a transmission range of more than 300ft (more than 100m) of single link high-resolution digital graphic data over fiber optic cables and EDID/HDCP parameters over DDC (UTP) cabling.

Using DDC (Digital Display Channel), the display can inform the video card about its properties, such as the maximum resolution and the color depth. The video card can then use this information to ensure that you are presented with valid options for configuring the display.

In particular, the 621T/621R pair features:

• A single-link DVI connection that supports a resolution of up to 1920x1200 at a 60Hz refresh rate
  • Maximum data rate of 4.95Gbps (1.65Gbps per graphic channel)
• Transmission of one red, one green and one blue channel, and one clock – over the fiber optic cables, with 4 simplex or 2 duplex LC fiber connectors
• DDC/HDCP interconnection over CAT 5 with RJ-45 connectors, and also provides power via the UTP cable
  • Class 1 Laser Eye Safety in compliance with FDA/CDRH and IEC 60825-1
• Compliance with the limits for a Class A digital device, pursuant to part 15 and 2 of FCC and CE
• Freedom from special memory size, CPU speed and chipsets, when using a computer
  • HDTV compatibility

3.1 About the Power Connect™ Feature

The Power Connect™ feature here means that only one unit in a system, the transmitter or receiver, needs to be connected to a power source when the devices are within 90m (270ft) of each other. The Power Connect™ feature applies as long as the cable can carry power and the distance does not exceed 90m on standard TP cable. For longer distances, use heavy gauge cable (TP cable is still suitable for the video/audio transmission, but not for feeding the power at these distances).

3.2 Using Twisted Pair Cable

Kramer engineers have developed special twisted pair cables to best match our digital twisted pair products; the Kramer: BC-DGKat524 (CAT 5 24 AWG), the Kramer: BC-DGKat623 (CAT 6 23 AWG cable), and the Kramer: BC-DGKat7a23 (CAT 7a 23 AWG cable). These specially built cables significantly outperform regular CAT 5 / CAT 6 / CAT 7a cables.

4 Defining the 621T, 621R DVI Optical Transmitter/Receiver

This section defines the DVI Optical Transmitter/Receiver:

• 621T DVI Optical Transmitter (see Section 4.1)
• 621R DVI Optical Receiver (see Section 4.2)

4.1 Defining the 621T DVI Optical Transmitter

graph TD
    A["1"] --> B["DVI IN"]
    C["2"] --> D["12V DC"]
    B --> E["3"]
    D --> F["7"]
    E --> G["4"]
    F --> H["5"]
    G --> I["OPTIC CABLE"]
    H --> J["LINK"]
    I --> K["CL R"]
    I --> L["G B"]
    I --> M["DDC"]

Figure 1: 621T DVI Optical Transmitter

#	Feature		Function
1	DVI IN Connector		Connects to the DVI source
2	12V DC		12V DC connector for powering the unit
3	POWER LED		Lights when receiving power
4	LINK LED		Lights when receiving a stable DVI signal
5	OPTIC CABLE	CL R	Connect to the optic connectors on the 621R
6		G B
7	DDC CAT 5 Connector		Connects to the DDC RJ-45 connector on the 621R using a UTP CAT5 cable with RJ-45 connectors at both ends (the PINOUT is defined in 5.3)

4.2 Defining the 621R DVI Optical Receiver

graph TD
    A["1"] --> B["DVI OUT"]
    C["2"] --> D["12V DC"]
    B --> E["3"]
    D --> F["7"]
    E --> G["4"]
    F --> H["5"]
    G --> I["POWER LINK"]
    H --> J["OPTIC CABLE"]
    I --> J
    J --> K["R CL B G DDC"]

Figure 2: 621R DVI Optical Receiver

#	Feature		Function
1	DVI OUT Connector		Connects to the DVI acceptor
2	12V DC		12V DC connector for powering the unit
3	POWER LED		Lights when receiving power
4	LINK LED		Lights when receiving a stable DVI signal
5	OPTIC CABLE	R CL	Connect to the optic connectors on the 621T
6		B G
7	DDC CAT 5 Connector		Connects to the DDC RJ-45 connector on the 621T using a UTP CAT5 cable with RJ-45 connectors at both ends (the PINOUT is defined in Section 5.3

5 Connecting and Operating the 621T, 621R

Always switch off the power to each device before connecting it to your 621T, 621R. After connecting your 621T, 621R, connect its power and then switch on the power to each device.

We recommend testing your system configuration by first connecting the entire system (as illustrated in Figure 3), using short copper cables instead of optical fiber cables.

To connect the 621T, 621R as illustrated in the example in Figure 4:

You can use the 621T and 621R to configure a DVI optical transmitter and receiver system as illustrated in Figure 3: the source connects to the 621T, the 621R connects to the display, and both transmitter and receiver are interconnected via fiber optics and UTP cabling.

graph LR
    A["Computer"] --> B["621T Transmitter"]
    B --> C["621R Receiver"]
    C --> D["Computer"]
    style B fill:#ccc,stroke:#333
    style C fill:#ccc,stroke:#333
    note right of B "Optic Fiber Cables up to 100 meters"
    note right of C "DDC Cabling up to 100 meters"

Figure 3: 621T and 621R DVI Optical Transmitter and Receiver System

5.1 Connecting the 621T/621R DVI Optical Transmitter/Receiver

To connect the 621T DVI Optical Transmitter with the 621R DVI Optical Receiver, as the example in Figure 4 illustrates, do the following:

1. Connect the DVI source (for example, a computer) to the 621T DVI IN connector, using the DVI cable.
   Make sure that the system is not powered up when connecting the DVI source.
2. On the 621R, connect the DVI OUT connector to the DVI acceptor (for example, a display), using the DVI cable.

3. Remove the module dust covers and connect each duplex LC fiber cable one-by-one to each of the four LC receptacles of the 621T and 621R.

4. Carefully recheck the polarities and ensure that the duplex connectors are fully engaged.

Do not look directly into the LC receptacles of the 621T, while powered on, although this product is regulated strictly enough to operate under the Laser Class 1, classified by CDRH/FDA for eye safety.

1. Connect the DDC RJ-45C connector on the 621T to the DDC RJ-45C connector on the 621R, via UTP cabling (see Section 5.3).

2. Connect the 12V 2.1A DC power adapter to the power socket of either the 621T or the 621R and connect the adapter to the mains electricity (not shown).

Alternatively, connect the separate power supplies to the transmitter and to the receiver simultaneously.

1. Turn the power on the source and the display to ON.

graph TD
    A["Host Computer"] -->|DVI| B["621T"]
    B --> C["621R"]
    C -->|Fiber| D["621T"]
    D --> E["621R"]
    E --> F["Host Computer"]
    G["Plasma Display"] -->|DVI| H["621T"]
    H --> I["621R"]
    I --> J["Host Computer"]
    style A fill:#f9f,stroke:#333
    style G fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#ccf,stroke:#333
    style D fill:#ccf,stroke:#333
    style E fill:#ccf,stroke:#333
    style F fill:#ccf,stroke:#333
    style H fill:#ccf,stroke:#333
    style I fill:#ccf,stroke:#333

Figure 4: Connecting the 621T, 621R DVI Optical Transmitter/Receiver

5.2 Operating the 621T/621R DVI Optical Transmitter/Receiver

To properly operate the 621T/621R system:

• Make sure you have a media receiver or a graphic controller card with a DVI connector on your PC/Mac or SUN system.
• Make sure that your graphic card supports the maximum resolution of the display you are about to connect
• Avoid "hot plugging" the 621T or 621R. This is not a recommended practice with live digital voltages

5.3 Wiring the TP LINE IN / LINE OUT RJ-45 Connectors

This section defines the TP pinout, using a straight pin-to-pin cable with RJ-45 connectors.

Note, that the cable ground shielding must be connected / soldered to the connector shield.

EIA /TIA 568B
PIN	Wire Color
1	Orange / White
2	Orange
3	Green / White
4	Blue
5	Blue / White
6	Green
7	Brown / White
8	Brown

Figure 5: TP PINOUT

The RJ-45 pin assignments are as follows:

PIN	Symbol	Description
1	DDC Data GND	DDC Data line return ground
2	DDC Data	DDC Data line for (HDMI Digital Display Channel) DDC2B communication
3	DDC Clock GND	DDC Clock line return ground
4	Power GND	Main power return ground
5	Power	Main power for Kramer module
6	DDC Clock	DDC Clock line for (HDMI Digital Display Channel) DDC2B communication
7	5V_IN	DVI 5V (DVI No. 14 pin for Display)
8	HPD	Signal is driven by monitor to enable the system to identify the presence of a Display

6 Technical Specifications

	621T	621R
INPUTS:	DVI IN (DVI-D on a DVI-I connector)	4 LC optical connectors for R, G, B & clock. 1 CAT 5 (RJ-45) for DDC and HDCP bi-directional data
OUTPUTS:	4 LC optical connectors for R, G, B & Clock. 1 CAT 5 (RJ-45) for DDC and HDCP bi-directional data	DVI OUT (DVI-D on a DVI-I connector)
MAX. DATA RATE	4.95Gbps (1.65Gbps per graphic channel)
POWER CONSUMPTION:	12V DC 390mA	12V DC 380mA
OPERATING TEMPERATURE:	0° to +40°C (32° to 104°F)
STORAGE TEMPERATURE:	-40° to +70°C (-40° to 158°F)
HUMIDITY:	10% to 90%, RHL non-condensing
DIMENSIONS:	12cm x 8.05cm x 2.75cm (4.72" x 3.17" x 1.08", W, D, H)
WEIGHT:	0.3 kg. (0.67 lbs.) approx.
ACCESSORIES:	Power supply, bracket installation kit, 1 DVI/DVI male to male cable
OPTIONS:	RK-3T 19" rack adapter
Specifications are subject to change without notice at http://www.kramerelectronics.com

LIMITED WARRANTY

The warranty obligations of Kramer Electronics for this product are limited to the terms set forth below:

What is Covered

This limited warranty covers defects in materials and workmanship in this product.

What is Not Covered

This limited warranty does not cover any damage, deterioration or malfunction resulting from any alteration, modification, improper or unreasonable use or maintenance, misuse, abuse, accident, neglect, exposure to excess moisture, fire, improper packing and shipping (such claims must be presented to the carrier), lightning, power surges, or other acts of nature. This limited warranty does not cover any damage, deterioration or malfunction resulting from the installation or removal of this product from any installation, any unauthorized tampering with this product, any repairs attempted by anyone unauthorized by Kramer Electronics to make such repairs, or any other cause which does not relate directly to a defect in materials and/or workmanship of this product. This limited warranty does not cover cartons, equipment enclosures, cables or accessories used in conjunction with this product.

Without limiting any other exclusion herein, Kramer Electronics does not warrant that the product covered hereby, including, without limitation, the technology and/or integrated circuit(s) included in the product, will not become obsolete or that such items are or will remain compatible with any other product or technology with which the product may be used.

How Long Does this Coverage Last

Seven years as of this printing; please check our Web site for the most current and accurate warranty information.

Who is Covered

Only the original purchaser of this product is covered under this limited warranty. This limited warranty is not transferable to subsequent purchasers or owners of this product.

What Kramer Electronics will do

Kramer Electronics will, at its sole option, provide one of the following three remedies to whatever extent it shall deem necessary to satisfy a proper claim under this limited warranty:

1. Elect to repair or facilitate the repair of any defective parts within a reasonable period of time, free of any charge for the necessary parts and labor to complete the repair and restore this product to its proper operating condition. Kramer Electronics will also pay the shipping costs necessary to return this product once the repair is complete.
2. Replace this product with a direct replacement or with a similar product deemed by Kramer Electronics to perform substantially the same function as the original product.
3. Issue a refund of the original purchase price less depreciation to be determined based on the age of the product at the time remedy is sought under this limited warranty.

What Kramer Electronics will not do Under This Limited Warranty

If this product is returned to Kramer Electronics or the authorized dealer from which it was purchased or any other party authorized to repair Kramer Electronics products, this product must be insured during shipment, with the insurance and shipping charges prepaid by you. If this product is returned uninsured, you assume all risks of loss or damage during shipment. Kramer Electronics will not be responsible for any costs related to the removal or re-installation of this product from or into any installation. Kramer Electronics will not be responsible for any costs related to any setting up this product, any adjustment of user controls or any programming required for a specific installation of this product.

How to Obtain a Remedy under this Limited Warranty

To obtain a remedy under this limited warranty, you must contact either the authorized Kramer Electronics reseller from whom you purchased this product or the Kramer Electronics office nearest you. For a list of authorized Kramer Electronics resellers and/or Kramer Electronics authorized service providers, please visit our web site at www.kramerelectronics.com or contact the Kramer Electronics office nearest you.

In order to pursue any remedy under this limited warranty, you must possess an original, dated receipt as proof of purchase from an authorized Kramer Electronics reseller. If this product is returned under this limited warranty, a return authorization number, obtained from Kramer Electronics, will be required. You may also be directed to an authorized reseller or a person authorized by Kramer Electronics to repair the product.

If it is decided that this product should be returned directly to Kramer Electronics, this product should be properly packed, preferably in the original carton, for shipping. Cartons not bearing a return authorization number will be refused.

Limitation on Liability

THE MAXIMUM LIABILITY OF KRAMER ELECTRONICS UNDER THIS LIMITED WARRANTY SHALL NOT EXCEED THE ACTUAL PURCHASE PRICE PAID FOR THE PRODUCT. TO THE MAXIMUM EXTENT PERMITTED BY LAW, KRAMER ELECTRONICS IS NOT RESPONSIBLE FOR DIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF WARRANTY OR CONDITION, OR UNDER ANY OTHER LEGAL THEORY. Some countries, districts or states do not allow the exclusion or limitation of relief, special, incidental, consequential or indirect damages, or the limitation of liability to specified amounts, so the above limitations or exclusions may not apply to you.

Exclusive Remedy

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THIS LIMITED WARRANTY AND THE REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, REMEDIES AND CONDITIONS, WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED. TO THE MAXIMUM EXTENT PERMITTED BY LAW, KRAMER ELECTRONICS SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IF KRAMER ELECTRONICS CANNOT LAWFULLY DISCLAIM OR EXCLUDE IMPLIED WARRANTIES UNDER APPLICABLE LAW, THEN ALL IMPLIED WARRANTIES COVERING THIS PRODUCT, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL APPLY TO THIS PRODUCT AS PROVIDED UNDER APPLICABLE LAW. IF ANY PRODUCT TO WHICH THIS LIMITED WARRANTY APPLIES IS A 'CONSUMER PRODUCT' UNDER THE MAGNUSON-MOSS WARRANTY ACT (15 U.S.C.A. §2301, ET SEQ.) OR OTHER APPLICABLE LAW, THE FOREGOING DISCLAIMER OF IMPLIED WARRANTIES SHALL NOT APPLY TO YOU, AND ALL IMPLIED WARRANTIES ON THIS PRODUCT, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR THE PARTICULAR PURPOSE, SHALL APPLY AS PROVIDED UNDER APPLICABLE LAW.

Other Conditions

This limited warranty gives you specific legal rights, and you may have other rights which vary from country to country or state to state.

This limited warranty is void if (i) the label bearing the serial number of this product has been removed or defaced, (ii) the product is not distributed by Kramer Electronics or (iii) this product is not purchased from an authorized Kramer Electronics reseller. If you are unsure whether a reseller is an authorized Kramer Electronics reseller, please visit our Web site at

www.kramerelectronics.com or contact a Kramer Electronics office from the list at the end of this document.

Your rights under this limited warranty are not diminished if you do not complete and return the product registration form or complete and submit the online product registration form. Kramer Electronics thanks you for purchasing a Kramer Electronics product. We hope it will give you years of satisfaction.

For the latest information on our products and a list of Kramer distributors, visit our Web site where updates to this user manual may be found.

We welcome your questions, comments, and feedback.

Web site: www.kramerelectronics.com

E-mail: [e-mail]

SAFETY WARNING

Disconnect the unit from the power supply before opening and servicing

Laser Compliance

LASER PRODUCT

Laser Class 1 acc. 21 CFR 1040 and Class 1 per IEC 60825-1

P/N: 2900-000103

Rev: 8