Kramer RC-52A User manual

KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
RC-52A
Room Controller
P/N: 2900-300090 Rev 1

RC-52A – Contents i
Contents
1Introduction 1
2Getting Started 2
2.1 Achieving the Best Performance 2
3Overview 3
3.1 Defining the RC-52A Room Controller Front Panel 4
3.2 Defining the RC-52A Room Controller Rear Panel 5
4Connecting the RC-52A Room Controller 6
4.1 The RS-232 Pinout 7
4.2 The Audio Potentiometer Pinout 7
4.3 Connecting the IR-OUT 8
4.4 Using the RC-52A as an IR Repeater 8
5Installing the Configuration Software 9
5.1 Configuring the RC-52A Buttons 9
5.2 Locking and Unlocking the RC-52A 9
6Technical Specifications 10
Figures
UFigure 1: RC-52A Front Panel for Europe (80 and 86mm) and the United StatesU4
UFigure 2: RC-52A Rear Panel for Europe (80 and 86mm) and the United StatesU5
UFigure 3: Connecting the RC-52AU6
UFigure 4: RS-232 PinoutU7
UFigure 5: Audio Potentiometer PinoutU7
UFigure 6: IR Emitter WiringU8
UFigure 7: IR Repeater OperationU8

RC-52A – 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 that are clearly defined by
function: 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; 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 RC-52A Room Controller, which is
designed to let you control an A/V system with ease, in a multimedia classroom or
conference room.

2 RC-52A - 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
•Use Kramer high performance high resolution cables
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 to avoid interference, deterioration
in signal quality due to poor matching, and elevated noise levels (often
associated with low quality cables)
•Avoid interference from neighboring electrical appliances that may adversely
influence signal quality
•Position your Kramer RC-52A away from moisture, excessive sunlight and
dust
Caution: 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
i
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RC-52A – Overview 3
3 Overview
The RC-52A is a 2 gang room controller with an analog volume control adjustment
knob, an RS-232 port, an IR control port and six backlit and label capable buttons
with three levels of lighting intensity available (set via the K-Config application). It
sends an RS-232 or IR command—with the push of a button—to a device (such as
a projector, display or switcher) via serial control protocols.
The RC-52A includes a front panel built-in IR Receiver for IR-command learning
and IR repeating. The IR commands that are learned are used for the customized
control of external sources, receiving the IR commands from different remote
transmitters without the need for an external IR remote control unit.
By connecting to the USB port, each button can be assigned, using K-Config (see
USection 5U), with a trigger including up to eight actions (serial and/or IR and/or set
light and/or lock and/or delay, see USection 5.2U)
The RC-52A is available in European (80mm and 86mm height versions) and
American versions.
The RC-52A also features:
•Remote analog audio level control
•Button lighting configuration
•A front panel lock that can be unlocked by a secret code which can be set by
the configuration application
In addition, the RC-52A supports:
•Start up, timeout, and schedule macros
•Power supply over USB during configuration
•IR repeating through its IR receiver

4 RC-52A - Overview
3.1 Defining the RC-52A Room Controller Front Panel
The RC-52A is available in three versions (see Figure 1): 80mm and 86mm for
Europe and a version for the United States:
Figure 1: RC-52A Front Panel for Europe (80 and 86mm) and the United States

RC-52A – Overview 5
3.2 8BDefining the RC-52A Room Controller Rear Panel
Figure 2: RC-52A Rear Panel for Europe (80 and 86mm) and the United States
# Feature Function
1 Audio Potentiometer pinout GND PIN: ground connection for the potentiometer
LEVEL PIN: wiper of the potentiometer
+V: +10V connection of the potentiometer
2 RS-232 Terminal Block
Connector
Connect to the RS-232 connector on the A/V equipment
or a PC or other Serial Controller, see USection 4.1
3 GND PIN Not used
4 PROGRAM USB Connector Connect to a computer for unit configuration
5 GND PIN Connects (-) to the Ground
6 +5V PIN Connects (+) to the connector for powering the unit
7 IR OUT PIN Connect to an IR emitter cable
GND PIN

6 RC-52A - Connecting the RC-52A Room Controller
4 Connecting the RC-52A Room Controller
Always switch off the power to each device before connecting it to your
Transmitter and Receiver pair. After connecting your Transmitter and Receiver
pair, connect their power and then switch on the power to each device.
To connect the RC-52A, as shown in the example in Figure 3, do the following:
1. Connect an IR emitter to IR OUTPUT 1 and attach the emitter to the DVD player.
2. Connect the DVD output to the input of a projector.
3. Connect the RS-232 port (see Section 4.1
4. Connect the audio potentiometer PINs to the remote control terminal block
connectors of a power amplifier (for example, the Kramer 912 Power
Amplifier, see
) to the projector.
Section 4.2
5. Connect the 5V DC power adapter to the RC-52A power socket and to the
mains electricity.
).
Figure 3: Connecting the RC-52A
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RC-52A – Connecting the RC-52A Room Controller 7
4.1 9BThe RS-232 Pinout
The RS-232 9-pin D-sub port pinout is defined in UFigure 4U:
Figure 4: RS-232 Pinout
4.2 10BThe Audio Potentiometer Pinout
The audio amplifier pinout is defined in UFigure 5U:
Figure 5: Audio Potentiometer Pinout

8 RC-52A - Connecting the RC-52A Room Controller
4.3 Connecting the IR-OUT
Figure 6 shows how to connect the Kramer IR emitter (3.5mm to IR Emitter Control
Cable, P/N: C-A35/IRE-10). The white striped side connects to IR OUT, the black
side connects to the Ground, and the LED Emitter Shell is affixed to the IR sensor
window with the adhesive layer.
Figure 6: IR Emitter Wiring
4.4 Using the RC-52A as an IR Repeater
Once the RC-52A is mounted and powered, and the IR emitter is connected to a
piece of A/V equipment (for example, a DVD), you can use it as an IR signal
repeater, to extend the IR signal to that machine, which has no direct line-of-sight
(see Figure 7).
Figure 7: IR Repeater Operation

RC-52A – Installing the Configuration Software 9
5 Installing the Configuration Software
Download the K-Config configuration software from our Web site and install it (refer
to the K-Config guide).
5.1 13BConfiguring the RC-52A Buttons
To configure the RC-52A buttons, refer to the relevant Configuration guide.
Before you configure the RC-52A buttons:
1. Connect the RC-52A to your PC with the USB cable.
There is no need to connect the RC-52A to a power supply for configuration since
power is supplied over the USB cable.
2. Open the Configuration program.
3. Follow the instructions in the Configuration guide to configure the RC-52A
buttons.
5.2 14BLocking and Unlocking the RC-52A
You can lock the front panel buttons by pressing a predefined button on the front
panel. Pressing the lock button initiates a macro sequence (a series of commands,
which can include the dimming of the lights, shutdown of the A/V machines and so
on).
You can unlock the front panel buttons by pressing a predefined sequence of four
buttons.
The locking procedure can be configured as a part of the timeout or scheduling
event macros.
You can consult the installer of your unit regarding the specific
configuration of the locking and unlocking feature on your system.
i

10 RC-52A - Technical Specifications
6 Technical Specifications
INPUT: 1 IR Receiver
PORTS: 1 RS-232 on a terminal block connector
1 IR OUT on a terminal block connector
1 USB port
CONTROL: 10V volume control
POWER SOURCE: 5V DC, 150mA
DIMENSIONS: 2 gang for Europe (80cm or 86cm) and the USA
WEIGHT: 0.3kg (0.67lbs) approx
OPTIONS: RS-232 9-pin D-sub port to 3-pin terminal block connector cable
(C-D9F/3PM-0.6); Kramer IR emitter cable (P/N: C-A35/IRE-10)
Specifications are subject to change without notice
Go to our Web site at Uhttp://www.kramerelectronics.comUto access the list of resolutions

RC-52A 11
11
LIMITED WARRANTY
WHO IS PROTECTED?
WHAT IS COVERED AND WHAT IS NOT COVERED
WHATWE WILLPAYFOR AND WHATWE WILL NOT PAY FOR
HOW YOU CAN GET WARRANTY SERVICE
LIMITATION OF IMPLIEDWARRANTIES
EXCLUSION OF DAMAGES
CAUTION!
We warrant this product free from defects in material and workmanship under the following terms.
HOW LONG IS THE 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 us 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.
* FCC and CE approved using STP cable (for twisted pair products)
NOTE
Part 1:

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:
E-mail:
www.kramerelectronics.com
[e-mail]
!
SAFETY WARNING
Disconnect the unit from the power
supply before opening and servicing