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P/N: 2900-301160 Rev 1 www.kramerAV.com
USER MANUAL
MODEL:
RTBUS‑25xl
Round Table Connection Bus
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Kramer Electronics Ltd.
RTBUS‑25xl – Contents
i
Contents
Introduction 1
Getting Started 1
Overview 2
Defining the RTBUS‑25xl 3
Power Socket Options 4
The RTBUS‑25xl Connecting Surface 5
Installing the RTBUS‑25xl 6
Drilling a Hole in the Table 6
Installing the Power Socket 6
Mounting the RTBUS‑25xl in the Table 7
Connecting the Cables and Wires 8
Using the RTBUS‑25xl 9
Technical Specifications 10
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Kramer Electronics Ltd.
RTBUS‑25xl – Introduction
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!
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 www.kramerav.com/downloads/RTBUS‑25xl to check for up-to-date user manuals,
application programs, and to check if firmware upgrades are available (where appropriate).
Achieving 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 RTBUS‑25xl 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.
Safety Instructions
Caution: There are no operator serviceable parts inside the unit.
Warning: Do not open the unit. High voltages can cause electrical shock! Servicing by
qualified personnel only.
Warning: Disconnect the power and unplug the unit before installing.
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Kramer Electronics Ltd.
RTBUS‑25xl – Introduction
2
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 www.kramerav.com/support/recycling.
Overview
Congratulations on purchasing your Kramer RTBUS‑25xl Round Table Connection Bus.
The RTBUS‑25xl is an elegant furniture-mounted, round connection bus. The RTBUS‑25xl
features a pneumatic mechanism for pneumatic lifting and smooth closing of its lid. It is easily
installed into a table or podium top, and its interface enables you to connect any equipment
to systems installed in a room via the following pass-through connectors:
• 1 PC on a 15-pin HD connector.
• 1 USB connector.
• 1 stereo audio on a 3.5mm connector.
• 1 HDMI™ connector.
• 1 Ethernet port on an RJ-45 connector.
The RTBUS‑25xl supports HDMI with Deep Color, x.v.Color™, Lip Sync, HDMI
Uncompressed Audio Channels, Dolby TrueHD, DTS-HD, and CEC.
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Kramer Electronics Ltd.
RTBUS‑25xl – Defining the RTBUS‑25xl
3
Defining the RTBUS‑25xl
Figure 1: View
#
Feature
Function
Pneumatic Mechanism
Enables automatic lifting and smooth closing of the lid
Mounting Screws
For securing the RTBUS‑25xl to the table (2)
Locking Butterfly Nuts
Tighten to lock the mounting butterfly screw (2)
Mounting Butterfly Nuts
Tighten to secure the unit to the table surface (2)
Mounting Brackets (2 units)
Place in the bracket slits after inserting the enclosure into the table –
for securing the unit to the table surface
Black anodized or brushed
aluminum semi-automatic lid
Covers the connecting surface, leaving the table surface neat and
tidy
Outer Rim
Fits over the table surface
Connecting Surface
See Figure 2
Power Socket Opening
For installing a power socket (can be purchased separately).
IEC socket
Connect to an IEC power cord (can be purchased separately)
Mounting Bracket Slits (two
sets on each side)
Insert the mounting brackets to the slits when installing the
RTBUS‑25xl (see Mounting the RTBUS‑25xl in the
Table on page 7).
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Kramer Electronics Ltd.
RTBUS‑25xl – Defining the RTBUS‑25xl
4
Power Socket Options
A choice of power sockets is available for purchase in several versions, including power sockets
for the USA, Brazil, Germany (the Europlug), UK, Switzerland, Belgium-France, Italy, South
Africa, Israel and Australia. A “Universal” socket for general use is also available (see the
compatibility restrictions in the table below). Note that the photos below are for illustration
purposes only.
Power Socket Type
Power Specs
Description
Universal:
TS-201U (80-000043)
100-240V AC, 50/60Hz, 5A
Maximum 5A per power
outlet
Fully compatible with power plugs in the UK, India,
Italy and Denmark, as well as with the 2-prong
Europlug.
Partially compatible (if the polarity is reversed) with
plugs in China, Switzerland, Israel and the USA. The
universal socket does not supply grounding to plugs in
Central Europe and France and so you should order
country specific sockets instead.
Not compatible with South African plugs.
Power Socket Type
Power Specs
Power Socket Type
Power Specs
USA:
TS-201US (80-000046)
100-125V AC, 50/60Hz, 5A
Maximum 5A per power
outlet
Italy:
TS-201IT (80-000047)
100-240V AC, 50/60Hz, 5A
Maximum 5A per power
outlet
Germany and EU:
TS-201DE (80-000044)
100-240V AC, 50/60Hz, 5A
Maximum 5A per power
outlet
Australia:
TS-201AU (80-000050)
100-240V AC, 50/60Hz, 5A
Maximum 5A per power
outlet
Belgium and France:
TS-201FR (80-000045)
100-240V AC, 50/60Hz, 5A
Maximum 5A per power
outlet
Israel:
TS-201IL (80-000053)
100-240V AC, 50/60Hz, 5A
Maximum 5A per power
outlet
South Africa
TS-201ZA (80-000052)
100-240V AC, 50/60Hz, 5A
Maximum 5A per power
outlet
Brazil
TS-201BR (80-000051)
100-240V AC, 50/60Hz, 5A
Maximum 5A per power
outlet
Switzerland
TS-201CH (80-000049)
100-240V AC, 50/60Hz, 5A
Maximum 5A per power
outlet
England
TS-201GB (80-000048)
100-240V AC, 50/60Hz, 5A
Maximum 5A per power
outlet
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Kramer Electronics Ltd.
RTBUS‑25xl – Defining the RTBUS‑25xl
5
The RTBUS‑25xl Connecting Surface
Figure 2 defines the connecting surface (note that although ‘RTBUS-21’ is printed on the
panel, the name of the modular product is RTBUS‑25xl).
Figure 2: RTBUS‑25xl Connecting Surface
#
Feature
Function
ETHERNET RJ-45 Connector
Connect to a network
PC 15-pin HD Connector
Connects to a VGA source
USB Connector
Connects to a USB source
AUDIO 3.5mm Mini Jack
Connects to an unbalanced stereo audio source
HDMI™ Connector
Connect to HDMI source
5A MAX. Power Socket
Connects to 90-240V AC power consuming device
Lid Latch
For safely closing the lid
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Kramer Electronics Ltd.
RTBUS‑25xl – Installing the RTBUS‑25xl
6
Installing the RTBUS‑25xl
To install the RTBUS‑25xl perform the following steps:
1. Drill a hole in the table (see Drilling a Hole in the Table on page 6).
2. Install the power socket (see Installing the Power Socket on page 6).
3. Secure the unit to the table (see Mounting the RTBUS‑25xl in the Table on page 7).
4. Connect the cables (see Connecting the Cables and Wires on page 8).
Drilling a Hole in the Table
To drill an opening in the table:
1. Using any standard cup bit drill with a diameter ranging from 111mm to 114mm (4.37in to
4.49in), drill a hole in the table in the desired location.
The thickness of the table should be 3in (76mm) or less.
2. Clean the table surface.
Take care not to damage the table. Kramer Electronics is not responsible for any damage
caused to the table.
Installing the Power Socket
Figure 3 shows an example of the Universal power socket housing which is one of the
optional power sockets for the RTBUS‑25xl, see Power Socket Options on page 4.
To install the power socket (purchased separately):
1. Close the RTBUS‑25xl lid.
2. Carefully insert the power socket housing so that
the power socket fits into the power socket
opening on the connecting surface and the four
standoffs fit the four screw holes on the
RTBUS‑25xl.
When positioned correctly, the IEC socket faces
downwards.
3. Screw the four screws included in the power
socket kit into the designated holes to fix the
power socket housing in place.
4. Unscrew the power connector lock.
5. Connect the IEC power cord to the IEC socket.
Figure 3: RTBUS‑25xl Universal Power
Socket Housing
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Kramer Electronics Ltd.
RTBUS‑25xl – Installing the RTBUS‑25xl
7
Mounting the RTBUS‑25xl in the Table
To mount the unit, follow these steps:
Step 1: Insert the RTBUS‑25xl into the
hole cut into the table making sure the
outer rim is firm against the surface of the
table.
Step 2: From underneath the table, slide
the mounting brackets into the appropriate
slots.
Step 3: Tighten the butterfly mounting
screws securely upward against the table.
Step 4: Lock the mounting screws into
position with the locking butterfly screws.
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Kramer Electronics Ltd.
RTBUS‑25xl – Installing the RTBUS‑25xl
8
Connecting the Cables and Wires
Figure 4 illustrates how to connect the cables to the underside of the unit:
Figure 4: Connecting the Cables
Note that the cables shown in Figure 4 are 50cm long and have a MALE connector at the free
end so they can be plugged directly into the acceptors. You can extend these cables if
required.
Note that the connecting surface is an integral part of the RTBUS‑25xl enclosure and cannot
be detached.
We recommend that you use the Kramer C-AC AC Power Cord series to power the unit.
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Kramer Electronics Ltd.
RTBUS‑25xl – Using the RTBUS‑25xl
9
Using the RTBUS‑25xl
Once the RTBUS‑25xl is installed, you can easily customize it to your own needs by directly
plugging in the required AV equipment, as illustrated in the example in Figure 5.
Figure 5: RTBUS‑25xl Boardroom Installation
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Kramer Electronics Ltd.
RTBUS‑25xl – Technical Specifications
10
Technical Specifications
Ports
HDMI
On a female HDMI connector for HDMI link extension
USB
On a USB-A connector
PC
On a 15-pin HD connector
Audio
On a 3.5mm mini jack
Ethernet
On an RJ-45 connector
Power
Power socket
assemblies:
Universal, 100–240V AC, 50/60Hz, 5A; maximum 5A per
power outlet
Fully compatible with power plugs in the UK, India, Italy
and Denmark, as well as with the 2–prong Europlug
Partially compatible (if the polarity is reversed) with
plugs in China, Switzerland, Israel and the USA. The
universal socket does not supply grounding to plugs in
Central Europe and France (you should order country
specific sockets instead). Not compatible with South
African plugs
USA — 100–240V AC, 50/60Hz, 5A, maximum 5A per
power outlet
Germany and EU — 100–240V AC, 50/60Hz, 5A,
maximum 5A per power outlet
Belgium and France — 100–240V AC, 50/60Hz, 5A,
maximum 5A per power outlet
Italy — 100–240V AC, 50/60Hz, 5A, maximum 5A per
power outlet
Australia — 100–240V AC, 50/60Hz, 5A, maximum 5A
per power outlet
Israel — 220V AC, 50/60Hz, 5A, maximum 5A per
power outlet
South Africa — 220V AC, 50/60Hz, 5A, maximum 5A
per power outlet
Switzerland — 220V AC, 50/60Hz, 5A, maximum 5A per
power outlet
England — 220V AC, 50/60Hz, 5A, maximum 5A per
power outlet
Brazil — 220V AC, 50/60Hz, 5A, maximum 5A per
power outlet
Fuse Rating
T 6.3A 250V
Options
TBUS AC Power Cord
(C–AC/POWERCORD)
power socket kits
Environmental
Conditions
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
Regulatory
Compliance
Safety
CE, UL
Environmental
RoHs, WEEE
General
Net Dimensions
(W, D, H)
15.7cm x 12.8 cm x 15.4cm
(6.18" x 5.04" x 6.04")
Shipping Dimensions
(W, D, H)
36.5cm x 17cm x 17cm
(14.4" x 6.7" x 6.7")
Net Weight
0.85kg (1.9lbs) approx.
Shipping Weight
1.2kg (2.6lbs) approx. with mounting brackets
Specifications are subject to change without notice at www.kramerav.com
The terms HDMI, HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or registered trademarks of HDMI Licensing Administrator, Inc.
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The warranty obligations of Kramer Electronics Inc. (“Kramer Electronics”) for this product are limited to the terms set forth below:
What is Covered
This limited warranty covers defects in materials and workmanship in this product.
What is Not Covered
This limited warranty does not cover any damage, deterioration or malfunction resulting from any alteration, modification, improper or unreasonable use
or maintenance, misuse, abuse, accident, neglect, exposure to excess moisture, fire, improper packing and shipping (such claims must be presented to
the carrier), lightning, power surges, or other acts of nature. This limited warranty does not cover any damage, deterioration or malfunction resulting
from the installation or removal of this product from any installation, any unauthorized tampering with this product, any repairs attempted by anyone
unauthorized by Kramer Electronics to make such repairs, or any other cause which does not relate directly to a defect in materials and/or workmanship
of this product. This limited warranty does not cover cartons, equipment enclosures, cables or accessories used in conjunction with this product.
Without limiting any other exclusion herein, Kramer Electronics does not warrant that the product covered hereby, including, without limitation, the
technology and/or integrated circuit(s) included in the product, will not become obsolete or that such items are or will remain compatible with any other
product or technology with which the product may be used.
How Long this Coverage Lasts
The standard limited warranty for Kramer products is seven (7) years from the date of original purchase, with the following exceptions:
1. All Kramer VIA hardware products are covered by a standard three (3) year warranty for the VIA hardware and a standard three (3) year
warranty for firmware and software updates.
2. All Kramer fiber optic cables, adapter-size fiber optic extenders, active cables, cable retractors, all Kramer speakers and Kramer touch panels
are covered by a standard one (1) year warranty.
3. All Kramer Cobra products, all Kramer Calibre products, all Kramer Minicom digital signage products, all HighSecLabs products, all
streaming, and all wireless products are covered by a standard three (3) year warranty.
4. All Sierra Video MultiViewers are covered by a standard five (5) year warranty.
5. Sierra switchers & control panels are covered by a standard seven (7) year warranty (excluding power supplies and fans that are covered for
three (3) years).
6. K-Touch software is covered by a standard one (1) year warranty for software updates.
7. All Kramer passive cables are covered by a ten (10) year warranty.
Who is Covered
Only the original purchaser of this product is covered under this limited warranty. This limited warranty is not transferable to subsequent purchasers or
owners of this product.
What Kramer Electronics Will Do
Kramer Electronics will, at its sole option, provide one of the following three remedies to whatever extent it shall deem necessary to satisfy a proper
claim under this limited warranty:
1. Elect to repair or facilitate the repair of any defective parts within a reasonable period of time, free of any charge for the necessary parts and
labor to complete the repair and restore this product to its proper operating condition. Kramer Electronics will also pay the shipping costs
necessary to return this product once the repair is complete.
2. Replace this product with a direct replacement or with a similar product deemed by Kramer Electronics to perform substantially the same
function as the original product.
3. Issue a refund of the original purchase price less depreciation to be determined based on the age of the product at the time remedy is sought
under this limited warranty.
What Kramer Electronics Will Not Do Under This Limited Warranty
If this product is returned to Kramer Electronics or the authorized dealer from which it was purchased or any other party authorized to repair Kramer
Electronics products, this product must be insured during shipment, with the insurance and shipping charges prepaid by you. If this product is returned
uninsured, you assume all risks of loss or damage during shipment. Kramer Electronics will not be responsible for any costs related to the removal or reinstallation of this product from or into any installation. Kramer Electronics will not be responsible for any costs related to any setting up this product, any
adjustment of user controls or any programming required for a specific installation of this product.
How to Obtain a Remedy Under This Limited Warranty
To obtain a remedy under this limited warranty, you must contact either the authorized Kramer Electronics reseller from whom you purchased this
product or the Kramer Electronics office nearest you. For a list of authorized Kramer Electronics resellers and/or Kramer Electronics authorized service
providers, visit our web site at www.kramerav.com or contact the Kramer Electronics office nearest you.
In order to pursue any remedy under this limited warranty, you must possess an original, dated receipt as proof of purchase from an authorized Kramer
Electronics reseller. If this product is returned under this limited warranty, a return authorization number, obtained from Kramer Electronics, will be
required (RMA number). You may also be directed to an authorized reseller or a person authorized by Kramer Electronics to repair the product.
If it is decided that this product should be returned directly to Kramer Electronics, this product should be properly packed, preferably in the original
carton, for shipping. Cartons not bearing a return authorization number will be refused.
Limitation of Liability
THE MAXIMUM LIABILITY OF KRAMER ELECTRONICS UNDER THIS LIMITED WARRANTY SHALL NOT EXCEED THE ACTUAL PURCHASE PRICE PAID
FOR THE PRODUCT. TO THE MAXIMUM EXTENT PERMITTED BY LAW, KRAMER ELECTRONICS IS NOT RESPONSIBLE FOR DIRECT, SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF WARRANTY OR CONDITION, OR UNDER ANY OTHER LEGAL
THEORY. Some countries, districts or states do not allow the exclusion or limitation of relief, special, incidental, consequential or indirect damages, or
the limitation of liability to specified amounts, so the above limitations or exclusions may not apply to you.
Exclusive Remedy
TO THE MAXIMUM EXTENT PERMITTED BY LAW, THIS LIMITED WARRANTY AND THE REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF
ALL OTHER WARRANTIES, REMEDIES AND CONDITIONS, WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED. TO THE MAXIMUM EXTENT
PERMITTED BY LAW, KRAMER ELECTRONICS SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION,
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IF KRAMER ELECTRONICS CANNOT LAWFULLY DISCLAIM OR
EXCLUDE IMPLIED WARRANTIES UNDER APPLICABLE LAW, THEN ALL IMPLIED WARRANTIES COVERING THIS PRODUCT, INCLUDING WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL APPLY TO THIS PRODUCT AS PROVIDED UNDER APPLICABLE LAW.
IF ANY PRODUCT TO WHICH THIS LIMITED WARRANTY APPLIES IS A “CONSUMER PRODUCT” UNDER THE MAGNUSON-MOSS WARRANTY ACT (15
U.S.C.A. §2301, ET SEQ.) OR OTHER APPLICABLE LAW, THE FOREGOING DISCLAIMER OF IMPLIED WARRANTIES SHALL NOT APPLY TO YOU, AND
ALL IMPLIED WARRANTIES ON THIS PRODUCT, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR THE PARTICULAR PURPOSE,
SHALL APPLY AS PROVIDED UNDER APPLICABLE LAW.
Other Conditions
This limited warranty gives you specific legal rights, and you may have other rights which vary from country to country or state to state.
This limited warranty is void if (i) the label bearing the serial number of this product has been removed or defaced, (ii) the product is not distributed by
Kramer Electronics or (iii) this product is not purchased from an authorized Kramer Electronics reseller. If you are unsure whether a reseller is an
authorized Kramer Electronics reseller, visit our web site at www.kramerav.com or contact a Kramer Electronics office from the list at the end of this
document.
Your rights under this limited warranty are not diminished if you do not complete and return the product registration form or complete and submit the
online product registration form. Kramer Electronics thanks you for purchasing a Kramer Electronics product. We hope it will give you years of
satisfaction.
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www.KramerAV.com
info@KramerAV.com
P/N:
2900-301160
Rev:
1
SAFETY WARNING
Disconnect the unit from the power supply before opening and servicing
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.
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