Kramer OC-1N, OC-2, OC-4 User Manual

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