Kramer Electronics, Ltd.
USER MANUAL
Models:
621T, DVI Optical Transmitter
621R, DVI Optical Receiver
Contents
i
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 2
3 Overview 3
3.1 Power Connect Feature 4
3.2 Shielded Twisted Pair (STP) / Unshielded Twisted Pair (UTP) 4
4 Your DVI Optical Transmitter/ Receiver 4
4.1 Your 621T DVI Optical Transmitter 5
4.2 Your 621R DVI Optical Receiver 6
5 Using the DVI Optical Transmitter/Receiver 8
5.1 Connecting the 621T/621R DVI Optical Transmitter/Receiver 8
5.2 Operating the 621T/621R DVI Optical Transm itter/Receive r 9
5.3 Wiring the CAT 5 LINE IN / LINE OUT RJ-45 Connectors 10
6 Technical Specifications 11
Figures
Figure 1: 621T DVI Optical Transmitter 5
Figure 2: 621T DVI Optical Transmitter – Top and Lower Side Panels 5
Figure 3: 621T DVI Optical Receiver 6
Figure 4: 621R DVI Optical Receiver – Top and Lower Side Panels 7
Figure 5: 621T and 621R D V I Optical Tra nsm i t ter a n d Re c e iver System 8
Figure 6: Connecting the 621T/621R DVI Optical Transmitter/Receiver 9
Figure 7: CAT 5 PINOUT 10
Tables
Table 1: 621T DVI Optical Transmitter Features 6
Table 2: 621R DVI Optical Receiver Features 7
Table 3: CAT 5 PINOUT 10
Table 4: CAT 5 Power PINOUT 10
Table 5: Technical Specifications of the 621T/621R 11
Introduction
1
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 the video, audio, presentation, and
broadcasting professional 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
1
that are clearly defined by functi on.
Thanks for purchasing your Kramer 621T DVI Optical Transmitter and 621R
DVI Optical Receiver, which are ideal for:
• Digital display systems
• Flat panel displays, plasma display panels and projectors in conference
rooms and auditoriums
• Kiosks with digital flat panel di splays for information dis play
The 621T and 621R are available as two separate pack ages. The 621T
package includes the following items:
• 621T DVI Optical Transmitter
• Power adapter (12V DC 500mA Input)
2
and this user manual3
The 621R package includes the following items:
• 621R DVI Optical Receiver
• Power adapter (12V DC 1.25A Input)
2
and this user manual3
• One DVI/DVI male-to-male cable
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
• Use Kramer high performance optical cables
4
. Note that the units are
designed for use with MULTI-MODE optical cables
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; GROUP 3: Control Systems;
GROUP 4: Format/Standards Converters; GROUP 5: Range Extenders and Repeaters; G ROUP 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; GROUP 11: Sierra Products
2 When setting up a transmitter / receiver system you can connect the 12V power supplies to the transmitter and to the
receiver simultaneously. However, the power connect feature does let you connect just one power supply to either the
transmitter or receiver. In such a case, use the 1.25A power supply
3 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com
4 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2
2.1 Quick Start
This quick start chart summarizes the basic setup and operation:
Overview
3
3 Overview
The high performance Kramer 621T and 621R are optical transmitter and
receivers for DVI signals for computer 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 300 ft. (more
than 100 meters) of single link high-resolution digital graphic data over fiber
optic cables, and EDID
1
/HDCP2 parameters over DDC3 (UTP) cabling.
In particular, the 621T/621R pair:
• Provides a single-link DVI connection, supporting a resolution of up to
1920x1200 at 60Hz refresh rate
• Supports up to 1.65Gbps bandwidth
• Transmits 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
• Performs DDC/HDCP
2
interconnection over CAT5 with RJ-45
connectors, and also provides power via the UTP cable
• Is strictly regulated under the Class 1 Laser Eye Safety in compliance
with FDA/CDRH and IEC 60825-1
• Complies with the limits for a Class A digital device, pursuant to part 15
and 2 of FCC and CE
• Does not require any special memory size, CPU speed and chipsets, when
using a computer
• Is HDTV compatible
To achieve the best performance:
• Connect only good quality connection cables, thus avoiding interference,
deterioration in signal quality due to poor matching, and elevated noiselevels (often associated with low quality cables)
• Avoid interference from neighboring electrical appliances and position your
Kramer 621R and 621T away from moisture, excessive sunlight and dust
1 Extended Display Identification Data
2 High-Bandwidth Digital Content Protection
3 Using DDC (Digital Display Channel), the displa y can inform the video card about its properties, such as the maximu m
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
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your DVI Optical Transmitter/ Receiver
4
3.1 Power Connect Feature
When setting up a transmitter / receiver system you can connect the 12V
power supplies to the transmitter and to the receiver simultaneously. However,
the Power Connect feature does let you connect just one power supply to
either the transmitter or receiver. The other unit is fed over the same CAT 5
cable. In such a case, use the 1.25A power supply.
The Power Connect feature applies as long as the CAT 5 cable is heavy gauge
cable (that is, it can carry power). The distance does not exceed 50 meters on
standard cable.
For a distance of 100 meters, separate power supplies must be connected to the
transmitter and to the receiver simultaneously, unless using heavy gauge CAT 5
cable.
3.2 Shielded Twisted Pair (STP) / Unshielded Twisted Pair (UTP)
We
recommend that you use shielded twisted pair (STP) cable. There are
different levels of STP cable available, and we advise you to use the best
quality STP cable that you can afford. Our non-skew-free cable, Kramer
BC-STP is intended for digital signals and for analog signals where skewing
is not an issue. For cases where there is skewing, our UTP skew-free cable,
Kramer BC-XTP, may be used. Bear in mind, though, that we advise using
STP cables where possible, since the compliance to electromagnetic
interference was tested using those cables.
Although unshielded twisted pair (UTP) cable might be preferred for long
range applications, the UTP cable should be installed far away from electric
cables, motors and so on, which are prone to create electrical interference .
However, since the use of UTP cable might cause inconformity to electrom agnetic
standards, Kramer does not commit to meeting the standard with UTP cable.
4 Your DVI Optical Transmitter/ Receiver
This section defines the DVI Optical Transmitter / Receiver:
• 621T DVI Optical Transmitter (see section 4.1)
• 6
21R DVI Optical Receiver (see section 4.2)
Your DVI Optical Transmitter/ Receiver
5
4.1 Your 621T DVI Optical Transmitter
Figure 1, Figure 2 and Tabl e 1 define the 621
T DVI Optical Transmitter:
Top Side Panel
Lower Side Panel
Figure 1: 621T DVI Optical Transmitter
Top Side Panel
Lower Side Panel
Figure 2: 621T DVI Optical Transmitter – Top and Lower Side Panels
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your DVI Optical Transmitter/ Receiver
6
Table 1: 621T DVI Optical Transmitter Features
# 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 Cables
CL R
Connect to the optic connectors on the 621R
6 G B
7 DDC CAT5 Connector Connects1 to the DDC RJ-45 connector on the 621R
4.2 Your 621R DVI Optical Receiver
Figure 3, Figure 4 and Tabl e 2 define the 621
R DVI Optical Receiver:
Top Side Panel
Lower Side Panel
Figure 3: 621T DVI Optical Receiver
1 Using a UTP CAT5 cable with RJ-45 connectors at both ends (the PINOUT is defined in Table 3 and Figure 7)
Your DVI Optical Transmitter/ Receiver
7
Lower Side Panel
Top Side Panel
Figure 4: 621R DVI Optical Receiver – Top and Lower Side Panels
Table 2: 621R DVI Optical Receiver Features
# 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 the correct input signal
5
Optic Cables
R CL
Connect to the optic connectors on the 621T
6 B G
7 DDC CAT5 Connector Connects1 to the DDC RJ-45 connector on the 621T
1 Using a UTP CAT5 cable with RJ-45 connectors at both ends (the PINOUT is defined in Table 3 and Figure 7)
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Using the DVI Optical Transmitter/Receiver
8
5 Using the DVI Optical Transmitter/Receiver
You can use the 621T and 621R to configure a DVI optical transmitter and
receiver system as illustrated in Figure 5: the sou rce c
onnects to the 621T, the
621R connects to the display, and both transmitter and receiver are
interconnected via fiber optics and UTP cabling.
Receiver
621R
Transmitter
621T
Optic Fiber Cables up to 100 meters
DDC Cabling up to 100 meters
Figure 5: 621T and 621R D VI Optical Transmitter and Receiver System
It is recommended to test your system configuration by first connecting the
entire system (as illustrated in Figure 5), using short copper cables instead of
optical fiber cables
5.1 Connecting the 621T/621R DVI Optical Transmitter/Receiver
To connect
1
the 621T DVI Optical Transmitter with the 621R DVI Optical
Receiver, as the example in Figure 6 illustrates, do the following:
1
. Connect the DVI source (for example, a set top box
2
) to the 621T DVI IN
con n ector, using the DVI cable.
Make sure that the system is not powe red up w hen connecting t he 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 an d connect each du plex 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 Switch OFF the power on each device before connecting it to your 621T and 621R. After connecting your 621T and 621R,
switch on its power and then switch on the power on each device
2 Alternatively, you could connect a computer or other DVI source
Using the DVI Optical Transmitter/Receiver
9
5. 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).
6
. Connect the 12V 2.1A DC power adapter to the power socket of either the
621T or
1
the 621R and connect the adapter to the mains electricity (not shown).
7. Turn the power on the source and the display t o ON.
Figure 6: 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
1 Alternatively, connect the separate power supplies to the transmitter and to the receiver simultaneously
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Using the DVI Optical Transmitter/Receiver
10
5.3 Wiring the CAT 5 LINE IN / LINE OUT RJ-45 Connectors
Table 3, Table 4 and Figure 7 define the CAT 5 PINOUT, using a straight pinto
-pin cable with RJ-45 connectors:
Figure 7: CAT 5 PINOUT
Table 3: CAT 5 PINOUT
EIA /TIA 56 8A EIA /TIA 568B
PIN Wire Color PIN Wire Color
1 Green / White 1 Orange / White
2 Green 2 Orange
3 Orange / White 3 Green / White
4 Blue 4 Blue
5 Blue / White 5 Blue / White
6 Orange 6 Green
7 Brown / White 7 Brown / White
8 Brown 8 Brown
Pair 1 4 and 5 Pair 1 4 and 5
Pair 2 3 and 6 Pair 2 1 and 2
Pair 3 1 and 2 Pair 3 3 and 6
Pair 4 7 and 8 Pair 4 7 and 8
Table 4: CAT 5 Power PINOUT
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
Technical Specifications
11
6 Technical Specifications
Table 5 includes the technical specifications:
Table 5: Technical Specifications1 of the 621T/621R
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)
BANDWIDTH: 1.65Gbps
POWER SOURCE: 12V DC 500m A 12V D C 1. 2 5 A
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 s u pply, br a c ke t i n s t a l l a t i o n ki t , 1 D V I / D V I m a l e t o ma l e cable
OPTIONS: RK-3T 19” rack adapter
1 Specifications are subject to change without notice
KRAMER: SIMPLE CREATIVE TECHNOLOGY
12
LIMITED WARRANTY
WHO IS PROTECTED?
WHA T IS C OVERED AND WHA T IS NOT CO VERED
WHAT WE WILL PAY FOR AND WHAT WE WILL NOT PAY FOR
HOW YOU CAN GET WARRANTY SERVICE
LIMITATION OF IMPLIED W ARRANTIES
EXCLUSION OF DAMAGES
CAUTI ON!
Kramer Electronics (hereafter ) warrants this product free from defects in material and workmanship under the
following te rms.
Kramer
HOW LONG IS THE W ARRANTY
Labor and parts are warranted for three years from the date of the first customer purchase.
Only the first purchase customer may enforce th is warranty.
W e will pay labor and material expenses for covered items. We will not pay for the following:
The liability of Kramer for an y effective prod ucts is limited to the repair or repl acement of the produc t at our option. Krame r shall
not be liabl e for:
This warranty gives you specific legal rights, and you may also have other rights, which vary from place to place.
All products returned to Kramer for service must have prior approval. This may be obtained from your dealer.
This equipment has been tested to determine compliance with the requirements of:
EN-50081: "Electromagnetic compatibility (EMC);
generic emission stand ard.
Resi denti al, co mmerc ial and l ight industr y"
EN-50082: "Electromagnetic compatibility (EMC) generic immunity standard.
Part 1: Residential, commercial and light industry environment".
CFR-47: FCC* Rules and Regulations:
Part 15: “Radio frequency devices
Subpart B Unintentional radia tors”
Except as below, this warr anty cover s all defects in ma terial or workmanship in t his product. The follow ing are not covered
by the warranty:
1. Any product which is not distributed by Kramer, or which is not purchased from an authorized Kramer dealer. If you are
uncertain as to whether a dealer is authorized, please contact Kramer at one of the agents listed in the Web site
www.kramerelectronics. com.
2. Any pr oduct, on which the ser ial number has been defaced, modi fied or removed, or on which the WARRANTY VOID
T AM P ERED sticke r ha s bee n to rn,
3. Damage, deterioration or malfunction resulting from:
i) Accident, misuse, abu se, neglec t, fire, water , lightnin g or other ac ts of nature
ii) Produ ct mo dific ation , or fa ilu re to fo llow instr ucti ons s uppli ed wit h the produ ct
iii) Repair or at temp ted re pair by any one n ot au thori zed by Kra mer
iv) Any sh ipme nt of th e pro duct ( clai ms mus t be pr esen ted to the ca rrie r)
v) Remova l or i nstalla tion of th e pro duct
vi) Any other cause, which does not relate to a product defect
vii) Cartons, equipmen t enclosures, cables o r accessories used in conju nction with the product
1. Removal or installations charges.
2. Costs of initial technical adjustments (set-up), including adjustment of user controls or programming. These costs are the
respon sibi lity of th e Kram er deal er from whom t he produ ct wa s purchas ed.
3. Shipping charges.
1. To obtain service on you product , you must take or ship i t prepa id t o any authorized Kr amer service center.
2. Whenever warranty service is required, th e original dated invoice (or a copy) must be presented as proof of warranty
covera ge, and should be included in any shi pment of the product. Please also include in any mailing a contact name,
company, address, and a description of the prob lem(s).
3. For the name of the nearest Kramer authorized service center, consult your authorized dealer.
All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to
the length of this war ranty.
1. Damage to other property caused by defects in this product, damages based upon inconvenience, loss of use of the product, loss
of time, commercial loss; or:
2. Any other damages, whether incidental, consequential or otherwise. Some countries may not allow limitations on how long an
implied warranty la sts and/or do not all ow the exclusion or limitation of inci dental or consequential damages, so the above
limita tions and excl usions m ay not ap ply to you.
Servicing the machines can only be done by an authorized Kramer technician. Any user who makes changes or
modifications t o the uni t without the expressed approval of the manufacturer will void user authority to operate the
equipment.
Use the supplied DC power supply to feed power to the machine.
Please use recommended interconnection cables to connect the machine to other components.
IF reattached, removed or otherwise interfered with.
* FCC a nd CE app roved usi ng STP cable (for twi sted pair produ cts)
NOTE:
Part 1:
Kramer Electronics, Ltd.
Web site: www.kramerelectronics.com
E-mail: info@kramerel.com
P/N: 2900-000103 REV 6
For the latest information on our products and a list of Kramer
distributors, visit our Web site: www.kramerelectronics.com,
where updat
es to this user manual may be found.
We welcome your questions, comments and feedback.
Caution
Safety Warning:
Disconnect the unit from the power supply before
opening/servicing.
Class 1 Laser Compliance
CLASS 1 LASER PRODUCT
This product complies with “21 CFR 1040.10” and “EN 60825-1”.
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