Kramer F-121 User manual

KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
F-121
XGA/Audio Line Transmitter
Mounting Box for Ackermann
Floor Boxes
P/N: 2900-000715 Rev 2

F-121 – Contents i
Contents
1Introduction 1
2Getting Started 2
2.1 Achieving the Best Performance 2
2.2 Safety Instructions 2
2.3 Recycling Kramer Products 3
3Overview 4
3.1 Defining the F-121 Description 4
3.2 About the Power Connect™ Feature 7
3.3 Shielded Twisted Pair (STP) / Unshielded Twisted Pair (UTP) 7
3.4 DDC Support 7
4Connecting the F-121 8
4.1 Installing a Kramer Insert 8
4.2Connecting the Cables to the Rear Side of the F-121 8
4.3 Installing the F-121 inside the Ackermann Floor Box 9
4.4 Connecting the Front Panel Ports 10
4.5 Wiring the 8-pin Terminal Block Line Output Connector 10
4.6 Wiring the TP LINE IN / LINE OUT RJ-45 Connectors 11
5Technical Specifications 12
Figures
UFigure 1: The F-121 XGA / Audio Line Driver Mounting BoxU5
UFigure 2: F-121 Fitted in an Ackermann Floor BoxU5
UFigure 1: F-121 XGA Line Transmitter Mounting BoxU6
UFigure 2: Installing the F-121 XGA / Audio Line Transmitter Mounting BoxU9
UFigure 3: Terminal Block PinoutsU10
UFigure 4: TP PINOUTU11

F-121 - 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 video, audio, presentation, and broadcasting professionals
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 Routers;
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 F-121 XGA / Audio Line Transmitter
Mounting Box, which is ideal for the following typical applications:
•Presentation venues
•Multimedia applications
•Long-range graphics distribution for schools, hospitals, security, and stores

2 F-121 - 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)
•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 product away from moisture, excessive sunlight and
dust
2.2 Safety Instructions
Caution: There are 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
This equipment is to be used only inside a building. It may only be
connected to other equipment that is installed inside a building.
i
!
!

F-121 - Getting Started 3
2.3 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 http://www.kramerelectronics.com/support/recycling/.

4 F-121 - Overview
3 Overview
The F-121 mounting box for Ackermann floor boxes is a twisted pair transmitter for
computer graphics video signals up to and exceeding UXGA and unbalanced
stereo audio. It converts the input signals into a twisted pair signal that it transmits
to a compatible twisted pair receiver (for example, the Kramer TP-122). The F-121
includes two adjacent openings that lets you fit two single inserts or one dual insert
into the device.
In particular, the F-121 transmitter features:
•A transmission range of more than 300ft (more than 100m), and a 20kHz
audio bandwidth with an S/N ratio that exceeds 80dB on the same
transmission range
•The capability to store EDID when programmed by the Kramer FC-200 XGA
EDID Copier
The EDID of the display on the transmitter can be captured via the FC-200.
•Resolutions of up to UXGA
•The Kramer Power Connect™ feature
•A 12V DC power supply
3.1 Defining the F-121 Description
This section defines the F-121.
Figure 1 shows the F-121 XGA / Audio Line Transmitter Mounting Box:

F-121 - Overview 5
Figure 1: The F-121 XGA / Audio Line Driver Mounting Box
Figure 2 shows the F-121 fitted in an Ackermann floor box:
Figure 2: F-121 Fitted in an Ackermann Floor Box

6 F-121 - Overview
Figure 3: F-121 XGA Line Transmitter Mounting Box
# Feature Function
1 Mounting Tabs For fitting the F-121 into an Ackermann floor box
2 Blank Inserts (2) Replace with Kramer wall plate inserts (see
Section 4.1
3 ) PC IN 15-pin HD F Connector Connect to the XGA source
4 Slide Screws (2) Release to increase or decrease the length of the
unit; tighten to fix size
5 Adjustable Mounting Slide For adjusting the size of the unit to fit an
Ackermann floor box
6 ON LED Lights red when receiving power, lights green
when receiving a signal from a video source
7 AUDIO IN 3.5mm mini Connector Connect to an unbalanced stereo audio source
8 8-pin Terminal Block Line Output
Connector Connect to the line in connector on the receiver (see Section 4.5
) (located inside the mounting
box)

F-121 - Overview 7
3.2 About the Power Connect™ Feature
The Power Connect feature applies as long as the cable can carry power. This
feature is available when using STP cable and the distance does not exceed 50m
(164ft) on standard CAT 5 cable. For longer distances, heavier gauge cable
should be used (TP cable is still suitable for the video/audio transmission, but not
for feeding the power at these distances). For units which are connected via RJ-45
connectors, make sure that the shield of the STP cable is connected to the metal
casing of the connectors on both ends of the cable. For units which are connected
via terminal block connectors, the shield of the STP cable must be connected to a
ground terminal on the units at both ends (use the ground terminal of the power
supply connection if necessary).
For a TP cable exceeding a distance of 50m, separate power supplies should be
connected to the transmitter and to the receiver simultaneously.
3.3 Shielded Twisted Pair (STP) / Unshielded Twisted Pair
(UTP)
We recommend that you use Shielded Twisted Pair (STP) cable, and stress that
the compliance to electromagnetic interference was tested using STP cable. There
are different levels of STP cable available, and we advise you to use the best
quality STP cable that you can afford. Our non-skew-free cable, Kramer BC-STP
is intended for analog signals where skewing is not an issue.
In cases where there is skewing, our Unshielded Twisted Pair (UTP) skew-free
cable, Kramer BC-XTP, may be advantageous, and UTP cable might also be
preferable for long range applications. In any event when using UTP cable, it is
advisable to ensure that the cable is installed far away from electric cables, motors
and so on, which are prone to create electrical interference.
3.4 DDC Support
When establishing a VGA connection between a PC or laptop and a display device, a
set of parameters known as EDID is exchanged between them, which is carried over
the DDC channel. In some PC graphic cards and laptops, this information exchange is
essential for proper VGA OUT operation.

8 F-121 - Connecting the F-121
4 Connecting the F-121
Always switch off the power to each device before connecting it to your
F-121. After connecting your F-121, connect its power and then switch
on the power to each device.
To install the F-121 you have to install the inserts and the transmitter which is
connected via TP to a receiver.
To install the F-121, do the following:
•Install the Kramer inserts (see Section 4.1
•Connect the cables to the rear side (see
)
Section 4.2
•Install the F-121 inside the Ackermann floor box (see
)
Section 4.3
•Connect the front panel ports (see
)
Section 4.4
•Connect the twisted pair cable to the receiver (for example, the Kramer
TP-122)
)
4.1 Installing a Kramer Insert
To install a Kramer insert, do the following:
1. Unscrew the two screws holding the blank insert and remove it.
2. Place and align the required wall plate insert item over the opening.
3. Insert the two screws to fix the insert in place, and tighten them.
4.2 Connecting the Cables to the Rear Side of the F-121
To connect the rear side cables, do the following:
1. Run the cables through the Ackermann under-floor cable opening.
2. Connect the cables to the rear side of the inserts.
3. Connect the cables to the rear side of the F-121 transmitter, that is, attach
the:
i

F-121 - Connecting the F-121 9
Terminal block line output of the F-121 to the pre-installed UTP wiring
that connects to the TP receiver (for example, the Kramer TP-122 XGA
/ Audio Line Receiver) with a range of more than 300ft (>100m), see
12V DC power supply to the power terminal blocks (connect the wire
labeled “+” to the +12V pin, and the wire labeled “–” to the GND pin)
taking care that the polarity is correct (see
Section 4.5
Figure 5)
4.3 Installing the F-121 inside the Ackermann Floor Box
To install the F-121 inside the Ackermann floor box, as illustrated in
Figure 4, perform the following steps:
1. Slightly release the two slide screws (do not remove them) to let the
adjustable mounting slide move freely.
2. Fit the F-121 mounting box into its designated place inside the Ackermann
floor box (see Figure 2).
3. Insert the fixed tab into the slot in the Ackermann box.
4. Adjust the size of the unit to fit the space in the box.
5. Insert the tab on the adjustable mounting box to the appropriate slot in the
Ackermann box.
6. Tighten slide screws to fix the size of the unit.
Figure 4: Installing the F-121 XGA / Audio Line Transmitter Mounting Box

10 F-121 - Connecting the F-121
4.4 Connecting the Front Panel Ports
To connect the front panel ports:
1. On the F-121 transmitter section, connect:
The XGA source (for example, a laptop’s graphics card) to the PC IN
15-pin HD (F) connector
An audio source to the AUDIO IN 3.5mm mini jack, for example, using
a Kramer C-GMA/GMA cable (VGA 15-pin HD (M) +Audio jack to VGA
15-pin HD (M) +Audio jack)
Alternatively, you can connect an XGA source to the XGA INPUT 15-pin HD (F)
connector, and a separate audio source to the AUDIO IN 3.5mm mini jack
2. Connect the appropriate connectors to the inserts.
4.5 Wiring the 8-pin Terminal Block Line Output Connector
The 8-pin terminal block is an easy plug-in connector for attaching the UTP cable.
Follow the colors of the color-coded sticker on these terminals for proper
connection of the UTP cable. Figure 5 defines the pinouts for the terminal block.
Figure 5: Terminal Block Pinouts
Notes:
•Use the connector clips only when removing wires, not when inserting them
•Each wire should protrude 9mm (0.35in) from the plastic insulation so that it
can be easily connected. To prevent the wires crossing, be sure that each
wire is fully inserted

F-121 - Connecting the F-121 11
4.6 Wiring the TP LINE IN / LINE OUT RJ-45 Connectors
This section defines the TP pinout, using a straight pin-to-pin cable with RJ-45
connectors.
EIA /TIA 568B
Figure 6: TP PINOUT
PIN
Wire Color
1 Orange / White
2 Orange
3 Green / White
4 Blue
5 Blue / White
6 Green
7 Brown / White
8 Brown

12 F-121 - Technical Specifications
5 Technical Specifications
INPUTS: 1 UXGA on a 15-pin HD (F) connector
1 Unbalanced stereo audio on a 3.5mm mini connector
1 Power 12V DC on 2-pin terminal block
OUTPUTS: 1 UTP on an 8-pin terminal block with springs
MAX. OUTPUT LEVEL: Video: 1.9Vpp
Audio: 2.7Vpp
RESOLUTION: Up to UXGA
AUDIO BANDWIDTH: 20kHz
DIFF. GAIN: 5.8%
DIFF. PHASE: 0.5 Deg
K-FACTOR: <0.05%
S/N RATIO: Video: 60dB @5MHz
Audio: 78dB @ 1KHz
CONTROLS: Video detection LED
COUPLING: Video: AC
Audio: AC
AUDIO THD + NOISE: 0.04%
AUDIO 2nd HARMONIC: 0.001%
POWER SOURCE: 12V DC 390mA (feeding TP-122-od receiver); self current
110mA
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
DIMENSIONS: Closed: 7.5cm x 15.7cm x 4.4cm (2.95” x 6.18" x 1.73") W, D, H
Open: 7.5cm x 15.7cm x 4.4cm (2.95” x 6.18" x 1.73") W, D, H
WEIGHT: 0.19kg (0.42lbs) approx.
ACCESSORIES: Power supply
Specifications are subject to change without notice at Uhttp://www.kramerelectronics.comU

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]
P/N:
2900-000715
Rev:
2
!
SAFETY WARNING
Disconnect the unit from the power
supply before opening and servicing