Kramer RC-74DL User manual

Kramer Electronics, Ltd.
USER MANUAL
Model:
RC-74DL
Master Room Controller

Contents
i
Contents
1Introduction 1
2Getting Started 1
3Overview 1
4Defining the RC-74DL Master Room Controller 3
5Connecting the RC-74DL Master Room Controller 6
5.1 Connecting the RS-232 Interface 8
5.2 Connecting the Ethernet Port 8
6Grounding the RC-74DL Master Room Controller 9
7Operating the RC-74DL Master Room Controller 9
8Front Panel Button Caps and Labels 10
8.1 Installing the Front Panel Button Caps, Labels 13
9Technical Specifications 14
Figures
Figure 1: RC-74DL Master Room Controller Front Panel 3
Figure 2: RC-74DL Master Room Controller Rear Panel 4
Figure 3: Connecting the RC-74DL Master Room Controller 7
Figure 4: RS-232 Connection 8
Figure 5: Grounding Connection Components 9
Figure 6: Sample Button Label Sheet 12
Figure 7: Button Cap Orientation 13
Figure 8: Button Cap Orientation with Label 13
Figure 9: Placing the Button Cap 13
Tables
Table 1: RC-74DL Master Room Controller Front Panel Features 3
Table 2: RC-74DL Master Room Controller Rear Panel Features 5
Table 3: Grounding Component Descriptions 9
Table 4: RC-74DL Master Room Controller Technical Specifications 14

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
Thank you for purchasing the Kramer RC-74DL Master Room Controller,
which is ideal for controlling multimedia rooms, such as classrooms,
auditoriums, conference rooms, and so on, while enabling remote control
and management of AV equipment.
that are clearly defined by function.
Each package includes the following items:
•The RC-74DL Master Room Controller
•3 Gang US Installation mud ring
•Power supply and 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
3 Overview
The RC-74DL is a highly versatile, 3 gang US, master room controller that
acts as an all-in-one extended remote control panel for control of AV
equipment—especially projectors and associated equipment—in any room
(such as classrooms, boardrooms, or auditoriums). It streamlines operations
and simplifies control by integrating audio, video, and computer-video
sources into a centralized system.
1 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; GROUP 11: Sierra Products
2 Download up-to-date Kramer user manuals from http://www kramerelectronics com
3 The complete list of Kramer cables is on http://www kramerelectronics com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Overview
2
The RC-74DL Master Room Controller features:
•12 configurable, RGB backlit, front panel buttons in three groups
(configured using the K-Config configuration software1
•1 configurable rotary up/down controller with direction indicator LEDs
(configured using the K-Config configuration software)
)
•2 general purpose I/O ports that can be configured by K-Config as
digital inputs, digital outputs or analog inputs for interfacing with a
variety of devices such as sensors, switches, LEDs, or relays
•3 bidirectional RS-232 ports that can control AV equipment such as
projectors, LCD and PDP displays, power amplifiers, switchers and
scalers
•4 relay contact closure ports that can control other room items related to
the AV system, such as, raising and lowering drapes, a screen or a
projector
•IR control on 2 outputs (terminal blocks)
•IR Learning that learns commands from any IR remote
•Compatibility with Kramer Site-CTRL software for network remote
control and management over the Ethernet port
•2 K-NET™ control channels2
•Flexible control via Ethernet and K-NET
that connect compatible user interfaces
and supply power and control data over a single cable
To achieve the best performance:
•Connect 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)
•Avoid interference from neighboring electrical appliances and position
your RC-74DL away from moisture, excessive sunlight and dust
1 Available from Kramer Electronics on our Web site at http://www kramerelectronics com/support/?soft=k-config
2 K-NET™ is a proprietary Kramer protocol for interconnecting Kramer units

Defining the RC-74DL Master Room Controller
3
4 Defining the RC-74DL Master Room Controller
Figure 1and Table 1define the front panel of the RC-74DL.
Figure 1: RC-74DL Master Room Controller Front Panel
Table 1: RC-74DL Master Room Controller Front Panel Features
#
Feature
Function
1 6 Configurable Button Switches Function is programmed by the K-Config Configuration
software
2 LCD Label Displays up to 8 characters at once (set by the K-Config
configuration software)
3 4 Configurable Button Switches Function is programmed by the K-Config Configuration
software
4 LCD Label Displays up to 8 characters at once (set by the K-Config
configuration software)
5 2 Configurable Button Switches Function is programmed by the K-Config Configuration
software
6 LCD Label Displays up to 8 characters at once (set by the K-Config
configuration software)
7 Rotary switch up/down LED indicator Indicates the direction of travel of the rotary switch
VOLUME Rotary Switch Function is programmed by the K-Config Configuration
software

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Defining the RC-74DL Master Room Controller
4
Figure 2and Table 2define the rear panel of the RC-74DL.
Figure 2: RC-74DL Master Room Controller Rear Panel

Defining the RC-74DL Master Room Controller
5
Table 2: RC-74DL Master Room Controller Rear Panel Features
#
Feature
Function
1 ETHERNET RJ-45 Connector Connects to the PC or other serial controller through
computer LAN
2 RESET TO DEFAULT1Caution: The current LCD text and all button actions will
be erased
Button
Push to erase Push2to erase all custom programming and
reset to the factory default definitions3
: IP Address: 192.168.1.39
Mask: 255.255.0.0
Gateway: 0.0.0.0
3 PROGRAM (USB) Connector Connect to a computer for firmware upgrade or for
uploading the configuration file
4 IR IN built-in IR receiver Use to learn the IR commands from a machine’s remote
control transmitter
5 Power Supply 2-pin Terminal Block
Connector Connect to power supply (see Section 5.1
Connect GND to GND, +12V to +12V ).
6 K-NET TERM Switch
4
Slide to the left (in the direction of the arrow) for K-NET
termination, slide to the right up to leave bus unterminated
7 K-NET1 Connector Connect the GND pin to the Ground connection
5
8
; pin B (-)
and pin A (+) are for RS-485, and the +12V pin is for
powering the unit
K-NET2 Connector Connect the GND pin to the Ground connection5; pin B (-)
and pin A (+) are for RS-485, and the +12V pin is for
powering the unit
9 Ring Tongue Terminal Grounding Screw Connect to grounding wire (optional), (see Section 6
10 ) GP I/O Terminal Blocks (1 and 2) Connect to various sensors, switches, LEDs, or relays
11 Rel (Relay) Terminal Blocks Connect to low-voltage relay-driven devices (from 1 to 4)
12 Switch For internal factory use only
13 RS-485 Termination Switch Slide down for RS-485 termination6
14
with 120Ω; slide up for
no RS-485 Line Termination
RS-485 Terminal Block Connector Connect to the RS-485 detachable terminal block on a
switcher or PC
15 RS-232 Terminal Blocks Connect to the RS-232 devices (from 1 to 3)
16 IR Output Terminal Blocks Connect to IR emitter cables (from 1 to 2)
1 This operation should be carried out by authorized Kramer technical personnel or by an external system integrator, and
requires removal of the device from the wall by unscrewing the four wall mount screws
2 Using a small screwdriver
3 Disconnect the power and then connect it while pressing the Factory Reset button The unit will power up and load its
memory with the factory default definitions
4 The last physical device on a K-NET bus must be terminated
5 The ground connection is sometimes connected to the shield of the RS-485 cable (in most applications, it is not connected)
6 The first and the last units on the RS-485 line should be terminated (ON) Other units should be unterminated (OFF)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the RC-74DL Master Room Controller
6
5 Connecting the RC-74DL Master Room Controller
To connect1Figure 3the RC-74DL, as shown in the example in , do the
following:
1. Connect the IR outputs as follows:
Connect an IR emitter to IR OUTPUT 1 and attach the emitter to the
DVD player
Connect an IR emitter to IR OUTPUT 2 and attach the emitter to the
power amplifier
2. Connect the RS-232 ports (see Section 6
Connect RS-232 port 1 to the projector
) as follows:
Connect RS-232 port 3 to the plasma display
3. Connect the RELAY terminal block connectors as follows:
Connect RELAY 1 and 2 to the screen
Connect RELAY 3 and 4 to the lighting system
4. Connect the GPI/O 1 port to a motion detector.
5. Connect the Ethernet port to a network (not shown in Figure 3).
6. Connect the K-NET port to any RC device with K-NET (for example,
the RC-63DL).
1 Switch off the power on each device before connecting it to your RC-74DL After connecting your RC-74DL, switch on its
power and then switch on the power to each device

Connecting the RC-74DL Master Room Controller
7
Figure 3: Connecting the RC-74DL Master Room Controller

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the RC-74DL Master Room Controller
8
5.1 Connecting the RS-232 Interface
To connect an AV device to the RC-74DL using the RS-232 port, connect
the RS-232 9-pin D-sub port on your AV device to the RS-232 terminal
block on the rear panel of the RC-74DL as shown in Figure 4.
Ground
RS-232 Device
Pin 5
Pin 3
Pin 2 Rx
Tx
Figure 4: RS-232 Connection
5.2 Connecting the Ethernet Port
The Ethernet connection of the RC-74DL lets you perform all control
functions of the RC-74DL over the Internet using a PC running the Kramer
Site-CTRL control program.
To connect the RC-74DL to a network:
1. Connect the Ethernet port of the RC-74DL to the Ethernet port on a
network hub or network router, via a straight cable with RJ-45 connectors.
2. At the other end, connect the Internet to a PC running Site-CTRL.
3. After connecting the Ethernet port, you have to install and configure it.
For detailed instructions on how to install and configure your Ethernet
port, see the K-Config Software Guide available from our Web site1
.
1 At http://www kramerelectronics com

Grounding the RC-74DL Master Room Controller
9
6 Grounding the RC-74DL Master Room Controller
The grounding screw is used to earth the chassis of the unit to the building
ground preventing static electricity from impacting the performance of the
unit.
Figure 5and Table 3defines the grounding screw components.
Figure 5: Grounding Connection Components
Table 3: Grounding Component
Descriptions
# Component Description
1 M3X6 screw
2 1/8" Toothed Lock Washer
3 M3 Ring Tongue Terminal
To ground the RC-74DL:
1. Connect the Ring Tongue terminal to the building grounding point wire
(it is recommended to use a green-yellow AWG#18 (0.82mm2) wire,
crimped with a proper hand-tool).
2. Insert the M3x6 screw through the toothed lock washers and the tongue
terminal in the order shown above.
3. Insert the M3x6 screw (with the two toothed lock washers and ring
tongue terminal) into the grounding screw hole and tighten the screw.
7 Operating the RC-74DL Master Room Controller
You can operate your RC-74DL using:
•Front panel buttons. These are configured using the K-Config software.
For instructions on using the software, see the K-Config Software Guide
available from our Web site1
•A PC running Site-CTRL control software:
To operate your device using Site-CTRL, see the Site-CTRL User
Guide available at the Kramer Web site
1 www kramerelectronics com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Front Panel Button Caps and Labels
10
8 Front Panel Button Caps and Labels
The RC-74DL is supplied with a button label sheet and 12 clear, button
caps to house the labels. Figure 6illustrates a sample button label sheet.

Front Panel Button Caps and Labels
11

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Front Panel Button Caps and Labels
12
Figure 6: Sample Button Label Sheet

Front Panel Button Caps and Labels
13
13
8.1 Installing the Front Panel Button Caps, Labels
To install the button caps and labels:
1. Remove the required labels from the supplied button label sheet.
2. Hold the button cap so that it is oriented as shown in Figure 7with the
“wings” on the left and right sides.
Figure 7: Button Cap Orientation
3. Insert the label inside the cap.
ON
Figure 8: Button Cap Orientation with Label
4. Retaining the orientation, place the button cap on the buttons of the
RC-74DL.
Figure 9: Placing the Button Cap
5. Repeat for all caps.
6. Remove the protective foils from both sides of the Perspex (acrylic
glass) windows.
7. Place the faceplate on the RC-74DL so that the four screw mounting
holes are aligned.
8. Insert the four mounting screws and tighten with a screwdriver.
9. Install the volume control knob.

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Technical Specifications
14
9 Technical Specifications
The RC-74DL technical specifications1Table 4are shown in .
Table 4: RC-74DL Master Room Controller Technical Specifications
INPUTS: 3 RS-232, 1 RS-485, 2 GPI/O and 2 K-NET on terminal block
connectors; Ethernet on an RJ-45 connector; 1 infrared sensor, 1 USB
for programming
OUTPUTS: 2 IR, 4 relays (36V AC or DC, 2A, 60VAC maximum on non-inductive
load) and 2 GPI/O on terminal block connectors
DEFAULT IP
SETTINGS: IP number −192.168.1.39; Mask – 255.255.0.0; Gateway – 0.0.0.0
POWER SOURCE: 12V DC, 470mA
DIMENSIONS: 16.2cm x 2.6cm x 11.4 (6.4" x 1.0” x 4.5") W, D, H
WEIGHT: 0.6kg (1.4lbs) approx.
ACCESSORIES: Power supply, Kramer K-Config Windows®-based configuration software
OPTIONS: IR emitter cables, KPOD-301, OWB-3G
1 Specifications are subject to change without notice

1
LIMITED WARRANTY
WHOISPROTECTED?
WHATISCOVEREDANDWHATISNOTCOVERED
WHATWEWILLPAYFORANDWHATWEWILLNOTPAYFOR
HOW YOU CAN GET WARRANTY SERVICE
LIMITATIONOFIMPLIEDWARRANTIES
EXCLUSIONOFDAMAGES
CAUTION
We warrantthisproductfreefromdefectsinmaterialandworkmanshipunder hefollowingterms.
HOWLONGISTHE 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.
Wewillpaylaborandmaterialexpensesforcovereditems.Wewillnotpay forthefollowing:
The liability of Kramer for any effective products is limited to the repair or replacement of the product at our option. Kramer
shallnotbeliable for:
Thiswarrantygivesyouspecificlegalrights,andyoumayalsohaveotherrights,whichvaryfromplacetoplace.
:AllproductsreturnedtoKramerforservicemusthavepriorapproval.Thismaybeobtainedfromyourdealer.
Thisequipmenthasbeentestedtodeterminecompliancewiththerequirementsof:
EN-50081: "Electromagneticcompatibility(EMC);
genericemissionstandard.
Residential,commercialandlightindustry"
EN-50082: "Electromagneticcompatibility(EMC)genericimmunitystandard.
Part1:Residential,commercialandlightindustryenvironment".
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
coveredbythewarranty:
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,deteriorationormalfunctionresultingfrom:
i) Accident,misuse,abuse,neglect,fire,water,lightningorotheractsofnature
ii) Productmodification,orfailuretofollowinstructionssuppliedwiththeproduct
iii) Repair orattemptedrepairbyanyonenotauthorizedbyKramer
iv) Anyshipmentoftheproduct(claimsmustbepresentedtothecarrier)
v) Removalorinstallationoftheproduct
vi) Anyothercause,whichdoesnotrelatetoaproductdefect
vii) Cartons,equipmentenclosures,cablesoraccessoriesusedinconjunctionwiththeproduct
1. Removalorinstallationscharges.
2. Costs of initial technical adjustments (set-up), including adjustment of user controls or programming. These costs are
theresponsibilityoftheKramerdealerfromwhomtheproductwaspurchased.
3. Shippingcharges.
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,lossoftime,commercialloss;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.
UsethesuppliedDCpowersupplytofeedpowertothemachine.
Pleaseuserecommendedinterconnectioncablestoconnectthemachinetoothercomponents.
F reattached, removed or otherwise interfered with.
*FCCandCEapprovedusingSTPcable(fortwistedpairproducts)
NOTE
Part1:

Kramer Electronics, Ltd.
Web site: www kramerelectronics.com
E-mail: [e-mail]
P/N: 2900-000691 REV 2
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.