Kramer 611T User manual

KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
611T, 611R
Fiber Optic
Transmitter/Receiver
P/N: 2900-009009 Rev 4

611T, 611R – Contents i
Contents
1Introduction 1
2Getting Started 2
2.1 Achieving the Best Performance 2
2.2 Safety Instructions 3
2.3 Recycling Kramer Products 3
3Overview 4
3.1 Defining the 611T, 611R Fiber Optic Transmitter/Receiver 4
4Connecting the 611T, 611R 6
5Technical Specifications 8
Figures
Figure 1: 611T Fiber Optic Transmitter 4
Figure 2: 611R Fiber Optic Receiver 5
Figure 3: Connecting the 611T, 611R Fiber Optic Transmitter/Receiver 7

611T, 611R - 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 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 611T, 611R Fiber Optic
Transmitter/Receiver, which is ideal for the following typical applications:
•Remote monitoring systems for CCTV, medical, broadcast, and industrial
use
•Signal distribution in broadcast and production studios
•Board room and other presentation systems
•Rental and staging applications

2 611T, 611R - Getting Started
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 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 611T, 611R 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.
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611T, 611R - Getting Started 3
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: Avoid direct eye exposure into the optic connectors
when powered, although this product is regulated
strictly enough to operate under the Laser Class 3R 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/.
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4 611T, 611R - Overview
3 Overview
The 611T and 611R are a high-performance fiber optic transmitter and receiver for
composite video signals. The 611T transmitter converts a composite video signal
into a fiber optic signal and the 611R receiver converts the fiber optic signal back
into a composite video signal.
More specifically, the 611T, 611R feature:
•55MHz (-3dB) bandwidth
•Level (gain) and EQ (peaking) controls
•A range of 5km (3.1mi) using multi-mode fiber optic cable
3.1 Defining the 611T, 611R Fiber Optic Transmitter/Receiver
This section defines the 611T, 611R. Figure 1defines the 611T transmitter and
Figure 2defines the 611R receiver.
Figure 1: 611T Fiber Optic Transmitter
# Feature Function
1 HF Trimmer Cable compensation (high frequency) control trimmer
2 GAIN Trimmer Video level control trimmer
3 INPUT BNC Connector Connects to a composite video source
4 TO FIBER Connector “ST” type connector outputting the converted video signal to
the optical fiber
5 ON LED Illuminates when the unit is powered ON
6 12V DC Power Connector Connects to the power supply to supply power to the unit

611T, 611R - Overview 5
Figure 2: 611R Fiber Optic Receiver
# Feature Function
1 FROM FIBER Connector “ST” type connector outputting the converted video signal to
the optical fiber
2 OUTPUT BNC Connector Connects to a composite video acceptor
3 HF Trimmer Cable compensation (high frequency) control trimmer
4 GAIN Trimmer Video level control trimmer
5 ON LED Illuminates when the unit is powered ON
6 12V DC Power Connector Connects to the power supply to supply power to the unit

6 611T, 611R - Connecting the 611T, 611R
4 Connecting the 611T, 611R
Always switch off the power to each device before connecting it to your
611T, 611R. After connecting your 611T, 611R, connect its power and
then switch on the power to each device.
To connect the 611T, 611R as illustrated in the example in Figure 3:
1. On the 611T, connect a composite video source (for example, a video
player) to the INPUT BNC connector.
2. On the 611R, connect the OUTPUT BNC connector to a composite video
acceptor (for example, a video recorder).
3. Connect a fiber optic cable from the TO FIBER connector on the 611T to the
FROM FIBER connector on the 611R.
4. Connect a 12V DC power supply to each of the units (not shown in the
illustration).
5. As needed, adjust the HF and GAIN trimmers on each unit with a small
screwdriver.
The units come pre-adjusted from the factory for optimum performance and transparent
operation. Adjustment is not normally required if all cables and connectors are working
properly.
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611T, 611R - Connecting the 611T, 611R 7
Figure 3: Connecting the 611T, 611R Fiber Optic Transmitter/Receiver

8 611T, 611R - Technical Specifications
5 Technical Specifications
INPUT: Composite video, 1Vpp/75Ω on a BNC connector (611T);
Fiber optic ST connector (611R)
OUTPUT: Fiber optic ST connector (611T); Composite video,
1Vpp/75Ω
on a BNC connector (611R)
OPERATION DISTANCE: Up to 5km (3.1mi)
VIDEO BANDWIDTH (-3dB): 55MHz
DIFF. GAIN: 0.4%
VIDEO S/N RATIO: 60dB
NON-LINEARITY: 0.6%
POWER CONSUMPTION: 12V DC, 80mA
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 7.5cm x 2.5cm (4.7” x 2.95” x 0.98”) W, D, H.
WEIGHT: 0.27kg (0.59lbs) approx.
ACCESSORIES: Power supply, mounting bracket
OPTIONS: RK-3T 19” rack adapter
Specifications are subject to change without notice at http://www.kramerelectronics.com

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]
P/N:
2900- 009009
Rev:
4
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SAFETY WARNING
Disconnect the unit from the power
supply before opening and servicing