Kramer Electronics TV Cables 621T User Manual

KRAMER ELECTRONICS LTD.  
USER MANUAL  
MODEL:  
621T  
DVI Optical Transmitter  
621R  
DVI Optical Receiver  
P/N: 2900-000103 Rev 8  
 
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  
621T, 621R - Introduction  
1
 
 
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  
to check for up-to-date user manuals, application programs, and to check if  
firmware upgrades are available (where appropriate).  
i
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
621T, 621R - Getting Started  
 
   
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  
621T, 621R - Getting Started  
3
 
   
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  
4
621T, 621R - Overview  
 
 
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.  
621T, 621R - Overview  
5
 
   
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  
Figure 1: 621T DVI Optical Transmitter  
#
Feature  
Function  
1
DVI IN Connector  
12V DC  
Connects to the DVI source  
2
3
4
5
6
7
12V DC connector for powering the unit  
Lights when receiving power  
POWER LED  
LINK LED  
Lights when receiving a stable DVI signal  
Connect to the optic connectors on the 621R  
OPTIC CABLE  
CL R  
G B  
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)  
6
621T, 621R - Defining the 621T, 621R DVI Optical Transmitter/Receiver  
 
     
4.2  
Defining the 621R DVI Optical Receiver  
Figure 2: 621R DVI Optical Receiver  
#
Feature  
Function  
1
DVI OUT Connector  
12V DC  
Connects to the DVI acceptor  
12V DC connector for powering the unit  
Lights when receiving power  
2
3
4
5
6
7
POWER LED  
LINK LED  
Lights when receiving a stable DVI signal  
Connect to the optic connectors on the 621T  
OPTIC CABLE  
R CL  
B G  
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  
621T, 621R - Defining the 621T, 621R DVI Optical Transmitter/Receiver  
7
 
   
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  
i
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.  
Optic Fiber Cables up to 100 meters  
621R  
621T  
Transmitter  
Receiver  
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.  
8
621T, 621R - Connecting and Operating the 621T, 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.  
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 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.  
7. Turn the power on the source and the display to ON.  
Figure 4: Connecting the 621T, 621R DVI Optical Transmitter/Receiver  
621T, 621R - Connecting and Operating the 621T, 621R  
9
 
 
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.  
i
Figure 5: TP PINOUT  
EIA /TIA 568B  
PIN  
Wire Color  
Orange / White  
Orange  
1
2
3
4
5
6
7
8
Green / White  
Blue  
Blue / White  
Green  
Brown / White  
Brown  
10  
621T, 621R - Connecting and Operating the 621T, 621R  
 
     
The RJ-45 pin assignments are as follows:  
PIN  
Symbol  
DDC Data GND  
DDC Data  
Description  
DDC Data line return ground  
1
2
DDC Data line for (HDMI Digital Display Channel) DDC2B  
communication  
3
4
5
6
DDC Clock GND  
Power GND  
Power  
DDC Clock line return ground  
Main power return ground  
Main power for Kramer module  
DDC Clock  
DDC Clock line for (HDMI Digital Display Channel) DDC2B  
communication  
7
8
5V_IN  
HPD  
DVI 5V (DVI No. 14 pin for Display)  
Signal is driven by monitor to enable the system to identify the  
presence of a Display  
621T, 621R - Connecting and Operating the 621T, 621R  
11  
 
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  
12V DC 390mA  
12V DC 380mA  
CONSUMPTION:  
OPERATING  
TEMPERATURE:  
0° to +40°C (32° to 104°F)  
-40° to +70°C (-40° to 158°F)  
STORAGE  
TEMPERATURE:  
HUMIDITY:  
10% to 90%, RHL non-condensing  
DIMENSIONS:  
WEIGHT:  
12cm x 8.05cm x 2.75cm (4.72" x 3.17" x 1.08", W, D, H)  
0.3 kg. (0.67 lbs.) approx.  
ACCESSORIES:  
OPTIONS:  
Power supply, bracket installation kit, 1 DVI/DVI male to male cable  
RK-3T 19” rack adapter  
Specifications are subject to change without notice at http://www.kramerelectronics.com  
12  
621T, 621R - Technical Specifications  
 
 
 
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.  
SAFETY WARNING  
Disconnect the unit from the power  
supply before opening and servicing  
!
Laser Compliance  
Laser Class 1 acc. 21 CFR  
1040 and Class 1 per  
IEC 60825-1  
LASER PRODUCT  
P/N:  
Rev:  
2900- 000103  
8
 

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