Kramer Electronics, Ltd.
USER MANUAL
Models:
OC-1N,
Video Isolator
OC-2,
Dual Channel Video Isolator
OC-4,
Quad Channel Video Isolator
Contents
i
Contents
1
Introduction 1
2
Getting Started 1
2.1
Quick Start 1
3
Overview 3
4
Your Video Isolators 4
4.1
The OC-1N Video Isolator 4
4.2
The OC-2 Dual Channel Video Isolator 5
4.3
The OC-4 Quad Channel Video Isolator 5
5
Connecting the Video Isolator 7
5.1
Connecting the OC-1N Video Isolator 8
5.2
Connecting the OC-2 Dual Channel Video Isolator 9
5.3
Connecting the OC-4 Quad Channel Video Isolator 10
6
Technical Specifications 12
Figures
Figure 1: OC-1N Video Isolator 4
Figure 2: OC-2 Dual Channel Video Isolator 5
Figure 3: OC-4 Quad Channel Video Isolator 6
Figure 4: Connecting the OC-1N Video Isolator 8
Figure 5: Connecting the OC-2 Dual Channel Video Isolator 9
Figure 6: Connecting the OC-4 Quad Channel Video Isolator 11
Tables
Table 1: OC-1N Video Isolator Features 4
Table 2: OC-2 Dual Channel Video Isolator Features 5
Table 3: OC-4 Quad Channel Video Isolator Features 7
Table 4: Technical Specifications of the OC-1N Video Isolator 12
Table 5: Technical Specifications of the OC-2 Dual Channel Video Isolator 12
Table 6: Technical Specifications of the OC-4 Quad Channel Video Isolator 12
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 groups1 that are clearly defined by function.
Congratulations on purchasing your Kramer OC-1N Video Isolator and/or
OC-2 Dual Channel Video Isolator and/or OC-4 Quad Channel Video Isolator.
This product is ideal for:
Large display systems with sources and displays/projectors on different
power circuits
Video field production sessions
Hospital and other critical applications requiring complete isolation
Eliminating video hum bars and noise
The package includes the following items:
OC-1N Video Isolator and/or OC-2 Dual Channel Video Isolator and/or
OC-4 Quad Channel Video Isolator
Power connector
This user manual2
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 high resolution cables3
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; GROUP 3: Control Systems; GROUP 4:
Format/Standards Converters; GROUP 5: Twisted-Pair Solutions; 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; GROUP 11: Sierra Products
2 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2
Overview
3
3 Overview
The Kramer OC-1N, OC-2 and OC-4 are high quality video isolator units for
one, two and four video or sync signals, respectively. They provide complete
isolation between devices thus eliminating video hum, ground loops, and DC
offsets which can degrade picture quality. The video isolators let the user select
which GROUND becomes floating - input, output, both or none, using the rear
panel buttons.
In addition, the Video Isolator:
Has a bandwidth of 20MHz (-3dB)
Features Opto-Isolator Circuitry providing an extremely linear response and
wide frequency range compared to traditional transformer based units
Includes Level (Gain) and EQ (Peaking) Controls per channel
Achieving the best performance means:
Connecting only good quality connection cables, thus avoiding
interference, deterioration in signal quality due to poor matching, and
elevated noise levels (often associated with low quality cables)
Avoiding interference from neighboring electrical appliances and
positioning your Video Isolator away from moisture, excessive sunlight
and dust
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your Video Isolators
4
4 Your Video Isolators
This section defines the OC-1N (see section 4.1), the OC-2 (see section 4.2)
and the OC-4 (see section 4.3).
4.1 The OC-1N Video Isolator
Figure 1 and Table 1 define the OC-1N:
Figure 1: OC-1N Video Isolator
Table 1: OC-1N Video Isolator Features
# Feature Function
1 POWER Switch Illuminated switch for turning the unit ON or OFF
2 BNC Connector Connect to the video source
3 AMP Trimmer Adjust1 the video input signal level
4
IN
Ground Button Release to "float" the input signal
5 Ground Button Release to "float" the output signal
6 HF Trimmer Adjust1 cable equalization level
7 GAIN Trimmer Adjust1 the video output gain
8
OUT
BNC Connector Connect to the video acceptor
9 Power Connector with Fuse AC connector enabling power supply to the unit
1 Insert a screwdriver into the hole and carefully rotate it, to trim the level
Your Video Isolators
5
4.2 The OC-2 Dual Channel Video Isolator
Figure 2 and Table 2 define the OC-2:
Figure 2: OC-2 Dual Channel Video Isolator
Table 2: OC-2 Dual Channel Video Isolator Features
# Feature Function
1 POWER Switch Illuminated switch for turning the unit ON or OFF
2 INPUT BNC Connector Connect to the video source
3 IN Ground Button Release to "float" the input signal
4 OUT Ground Button Release to "float" the output signal
5 HF Trimmer Adjust1 the cable equalization level
6 GAIN Trimmer Adjust1 the video output gain
7
CHANNEL 1 /
CHANNEL 2
OUTPUT BNC Connector Connect to the video acceptor
8 Power Connector with Fuse AC connector enabling power supply to the unit
4.3 The OC-4 Quad Channel Video Isolator
Figure 3 illustrates the OC-4 and Table 3 defines the front and rear panels.
1 Insert a screwdriver into the hole and carefully rotate it, to trim the level
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your Video Isolators
6
Figure 3: OC-4 Quad Channel Video Isolator
Connecting the Video Isolator
7
Table 3: OC-4 Quad Channel Video Isolator Features
# Feature Function
1 POWER Switch Illuminated switch for turning the unit ON or OFF
2 INPUT BNC Connector Connect to the video source
3 IN Ground Button Release to "float" the input signal
4 OUT Ground Button Release to "float" the output signal
5 HF Trimmer Adjust1 the cable equalization level
6 GAIN Trimmer Adjust1 the video output gain
7
CHANNEL 1,
CHANNEL 2,
CHANNEL 3,
CHANNEL 4
OUTPUT BNC Connector Connect to the video acceptor
8 Power Connector with Fuse AC connector enabling power supply to the unit
5 Connecting the Video Isolator
This section describes how to connect the:
OC-1N, see section 5.1
OC-2, see section 5.2
OC-4, see section 5.3
1 Insert a screwdriver into the hole and carefully rotate it, to trim the level
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the Video Isolator
8
5.1 Connecting the OC-1N Video Isolator
To connect the OC-1N, as illustrated in the example in Figure 4, do the
following1:
1. Connect a video source (for example, a camcorder) to the IN BNC connector.
2. Connect the OUT BNC connector to a video acceptor (for example, a display).
3. Connect the power.
4. If required:
Adjust2 the video input AMP level and/or the video output, GAIN and
HF levels
Press or release the ground input and/or output GND buttons
Figure 4: Connecting the OC-1N Video Isolator
1 Switch OFF the power on each device before connecting it to your OC-1N. After powering up your OC-1N, switch on the
power on each device
2 Use a screwdriver to carefully rotate the trimmer, adjusting the appropriate level
Connecting the Video Isolator
9
5.2 Connecting the OC-2 Dual Channel Video Isolator
To connect the OC-2, as illustrated in the example in Figure 5, do the following1:
1. Connect up to two video sources:
A video source (for example, a video player) to the CHANNEL 1
INPUT BNC connector
A video source (for example, a camcorder) to the CHANNEL 2
INPUT BNC connector
2. Connect up to two video acceptors:
The CHANNEL 1 OUTPUT BNC connector to a video acceptor (for
example, a display)
The CHANNEL 2 OUTPUT BNC connector to a video acceptor (for
example, a projector)
3. Connect the power.
4. If required:
Adjust2 the video input and/or output GAIN and HF levels
Press or release the ground input and/or output GND buttons
Figure 5: Connecting the OC-2 Dual Channel Video Isolator
1 Switch OFF the power on each device before connecting it to your OC-2. After powering up your OC-2, switch on the
power on each device
2 Use a screwdriver to carefully rotate the trimmer, adjusting the appropriate level
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the Video Isolator
10
5.3 Connecting the OC-4 Quad Channel Video Isolator
To connect1 the OC-4, as illustrated in the example in Figure 6, do the
following2:
1. Connect up to four video sources:
A video source (for example, a camcorder) to the CHANNEL 1
INPUT BNC connector
A video source (for example, a camcorder) to the CHANNEL 4
INPUT BNC connector
2. Connect up to four video acceptors:
The CHANNEL 1 OUTPUT BNC connector to a video acceptor (for
example, a display)
The CHANNEL 4 OUTPUT BNC connector to a video acceptor (for
example, a projector)
3. Connect the power.
4. If required:
Adjust3 the video input and/or output GAIN and HF levels
Press or release the ground input and/or output GND buttons
1 You do not have to connect all the inputs and outputs
2 Switch OFF the power on each device before connecting it to your OC-4. After powering up your OC-4, switch on the
power on each device
3 Use a screwdriver to carefully rotate the trimmer, adjusting the appropriate level
Connecting the Video Isolator
11
Figure 6: Connecting the OC-4 Quad Channel Video Isolator
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Technical Specifications
12
6 Technical Specifications
Table 4 includes the technical specifications of the OC-1N, OC-2 and OC-4:
Table 4: Technical Specifications1 of the OC-1N Video Isolator
INPUT: 1 composite video, 1Vpp/75 on a BNC connector
OUTPUT: 1 composite video, 1Vpp/75 on a BNC connector
S/N RATIO: 69dB
BANDWIDTH(-3dB): 20MHz
POWER SOURCE: 230V AC, 50/60Hz, (115V AC, U.S.A.) 2.3VA
DIMENSIONS: 16.5cm x 12cm x 4.5cm (6.5” x 4.7” x 1.8”) W, D, H
WEIGHT: 0.72kg (1.6lbs) approx.
ACCESSORIES: Power cord
OPTIONS: RK-1 19” rack adapter
Table 5: Technical Specifications1 of the OC-2 Dual Channel Video Isolator
INPUT: 2 composite video, 1Vpp/75 on BNC connectors
OUTPUT: 2 composite video, 1Vpp/75 on BNC connectors
BANDWIDTH (-3dB): 20MHz
S/N RATIO: 69dB
POWER SOURCE: 230V AC, 50/60Hz, (115V AC, U.S.A.) 2.3VA
DIMENSIONS: 22cm x 18cm x 4.5cm (8.7” x 7” x 1.7”) W, D, H
WEIGHT: 1.3kg (2.9lbs) approx.
ACCESSORIES: Power cord
OPTIONS: RK-1 19” rack adapter
Table 6: Technical Specifications1 of the OC-4 Quad Channel Video Isolator
INPUT: 4 composite video, 1Vpp/75 on BNC connectors
OUTPUT: 4 composite video, 1Vpp/75 on BNC connectors
BANDWIDTH (-3dB): 20MHz.
VIDEO S/N RATIO: 69dB.
POWER SOURCE: 230V AC, 50/60Hz, (115V AC, USA)
DIMENSIONS: 19 " x 7 " x 1U W, D, H, rack mountable
WEIGHT: 3.5kg (7.8lbs) approx.
ACCESSORIES: Power cord
1 Specifications are subject to change without notice
13
LIMITED WARRANTY
WHO IS PRO TECTED?
WHAT IS CO VERED AND WHAT IS NOT COVERED
WHAT WE WILL PAY FOR AND WHAT WE WILL N OT PAY FOR
HOW YOU CAN G ET WARRANTY SERVICE
LIMITATION O F IMPLIED WARRA NTIES
EXCLUSION O F DAMAGES
CAUT ION!
Kramer Electronics (hereafter ) warrants this product free from defects in material and workmanship under the
following terms.
Kramer
HOW LONG IS TH E WARRANTY
Labor and parts are warranted for seven years from the date of the first customer purchase.
Only the first purchase customer may enforce this warranty.
We will pay labor and material expenses for covered items. We will not pay for the following:
The liability of Kramer for any effective products is limited to the repair or replacement of the product at our option. Kramer shall
not be liable 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 standard.
Residential, commercial and light industry"
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 radiators”
Except as below, this warranty covers all defects in material or workmanship in this product. The following 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 product, on which the serial number has been defaced, modified or removed, or on which the WARRANTY VOID
TAMPERED sticker has been torn,
3. Damage, deterioration or malfunction resulting from:
i) Accident, misuse, abuse, neglect, fire, water, lightning or other acts of nature
ii) Product modification, or failure to follow instructions supplied with the product
iii) Repair or attempted repair by anyone not authorized by Kramer
iv) Any shipment of the product (claims must be presented to the carrier)
v) Removal or installation of the product
vi) Any other cause, which does not relate to a product defect
vii) Cartons, equipment enclosures, cables or accessories used in conjunction 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
responsibility of the Kramer dealer from whom the product was purchased.
3. Shipping charges.
1. To obtain service on you product, you must take or ship it prepaid to any authorized Kramer service center.
2. Whenever warranty service is required, the original dated invoice (or a copy) must be presented as proof of warranty
coverage, and should be included in any shipment of the product. Please also include in any mailing a contact name,
company, address, and a description of the problem(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 warranty.
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 lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitations and exclusions may not apply to you.
Servicing the machines can only be done by an authorized Kramer technician. Any user who makes changes or
modifications to the unit 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.
NOTE:
Part 1:
Kramer Electronics, Ltd.
Web site: www.kramerelectronics.com
E-mail: info@kramerel.com
P/N: 2900-008001 REV 3
For the latest information on our products and a list of Kramer
distributors, visit our Web site: www.kramerelectronics.com,
where updates 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.
P/N:
2900-008001
Rev:
3
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