Kramer DGKat Installation Guide

KRAMER ELECTRONIC S LTD.

DGKat Installation

Guide

MODELS:

Kr am er D GK at ™

Cable Recommendations for

Usage and Termination Guidelines

For the latest information on our products and a list of Kramer distributors, visit our Web
site where updates to these cable installation instructions may be found.

We welcome your questions, comments, and feedback.

Web site: www.kramerelectronics.com
E-mail: [e-mail]

P/N: 2900-300454 Rev 1

Contents

1 Introduction 1
2 General Guidelines and Recommendations 2

2.1 General Rules 2

2.2 Patch Cables and Connectors 2

3 DGKat Twisted Pair Cable Termination 3

3.1 BC-DGKat623 Cable Termination 3

3.2 BC-DGKat7a23 Cable Termination 6

3.3 BC-DGKat524 Cable Termination 9

DGKat – Introduction

1

1 Introduction

This document contains successful cable installation guidelines and is intended for Kramer technical personnel or
external system integrators.

To check that you have the latest version, go to the DOWNLOADS section of our Web site at:

http://www.kramerelectronics.com/support/product_downloads.asp

To check our suggested cables listing, per product, go to http://www.kramerelectronics.com

HDMI and DVI digital signals have limited transmission distance capabilities. To overcome these limitations, AV

professionals use twisted pair systems. However, distance is still limited by the construction and quality found in
twisted pair cables that are optimized for high speed data in typical network applications.

Category cables from other manufacturers may have unpredictable and often reduced performance (depending on
cable brand and type). It is important to choose a cable with a proven track record of performing at long distances and
high resolutions.

Category cable designed for use with analog signals does not perform well with digital signals. Low-skew or skew-free
cables do not perform well with digital signals.

To achieve maximum distance and ensure the highest quality performance, it is necessary to use cables designed
specifically for use with HDMI & DVI digital signals.

Kramer’s DGKat Series Shielded Twisted Pair Category Cable is specifically designed to deliver pristine digital video

signals over the longest possible distances, ensuring optimum results.

Kramer twisted pair category cables include high quality cables for passing digital signals via transmitter−receiver sets
to provide optimum range and performance:

 BC-DGKat623 – a 4-pair CAT 6 U/FTP (unshielded around foiled twisted pair) bulk cable (23AWG).

The cable construction is based on unique insulation foam materials and shielding materials usually not used in
conventional IT CAT cables. As a result Kramer BC-DGKat623 cables maintain much better signal integrity on
longer cable runs and provide less crosstalk between the twisted pairs inside the cable for modern high-frequency
digital video signals. Using Kramer’s BC-DGKat623 cable adds much needed “invisible power reserve” to your
installation to make them hassle-free and ensuring piece of mind in demanding AV applications

 BC-DGKat7a23 – a 4-pair CAT 7A S/FTP (braided shield around foiled twisted pair) bulk cable (23AWG).

The cable is optimized for the new 10GBase-T applications as defined in IEEE 802.3an and for PoE+. Four
individually aluminum−foil shielded twisted pairs (S/FTP), are cabled with a drain conductor and overall
braid−shielded, providing the best available shield

 BC-DGKat524 – a 4-pair CAT 5e F/UTP (foil around unshielded twisted pair) bulk cable (24AWG), designed as

the ideal companion to Kramer's twisted pair digital transmitter-receiver sets to provide optimum range and

performance. Four non−shielded (F/UTP) twisted pairs of 24AWG solid copper conductors are cabled together

and shielded with a polyester−aluminum tape and outer jacket

These cables are available in pull boxes of 100/305m (328/1000ft).

Before installing a particular cable, be sure to check that you are using the appropriate cable best suited to your
installation. Take into account the distances involved, as well as the expected performance of the connected devices
(for example, consider the expected resolutions of display devices).

2

DGKat - General Guidelines and Recommendations

2 General Guidelines and Recommendations

It is essential that you keep away as far as possible from EMI (Electro-Magnetic Interference) environments,
and in particular:

 EMI sources: Keep the cable away from electromagnetic interference environments such as high-voltage

electrical cables, electric motors (such as elevators or refrigerators), fluorescent, light-fixtures and so on

 AC power cables: Keep the cable at a distance of at least 12” from AC power cables
 AC power canals: Do not use electrical conduits to deploy the cable
 Patch cords: For better results do not use patch cords

Proper cable termination is crucial; otherwise installation failure may occur (see Section 3):

 Make sure that the drain wire is well soldered to the metal casing of the RJ-45 connectors on both cable ends.

Note that the Drain wire MUST be firmly attached because it is used as a 9th conductor

 Always use the recommended Kramer RJ-45 connector:

For BC-DGKat623 use CCR-RJ45-TP6
For BC-DGKat7a23 use CCR-RJ45-TP7
For BC-DGKat524 use a shielded RJ-45 connector

 Keep the pairs twisted as close to the termination point as possible and make sure that the strain relief is pulled

over the jacket of the cable

2.1 General Rules

The following are general rules to follow during the installation.

We recommend that you:

 Make only gradual bends in the cable when necessary to maintain the minimum bend radius of 4 times the cable

diameter or approximately 3cm radius

 Use low-to-moderate force when pulling cable. The standard calls for a maximum of 25 lbf (pounds of force)

Never:

 Bend, twist, or kink the cable at any time. Doing so may result in permanent damage to the geometry of the cable

and cause transmission failures

 Over-tighten cable ties or use plastic ties
 Splice or bridge Category cable at any point
 Use excessive force when pulling the cable
 Tie cables to electrical conduits, or lay cables on electrical fixtures
 Install taut cables (cables should be loose, but not sagging)
 Use staples on CAT cable that crimp the cable tightly

2.2 Patch Cables and Connectors

Ideally, the signal from the transmitter to the receiver should be transmitted using a single cable; however, often patch
cables are used to connect the device to the deployed cable. Considering that patch cables tend to be the weakest link
in the installation, they should only be used if absolutely necessary (at the transmitter or receiver), and these cables
should be kept as short as possible.

Be sure to verify that the patch cord connector is terminated using the same wiring scheme as the category cable.

DGKat – DGKat Twisted Pair Cable Termination

3

Remove approximately 2.5” of

the blue jacket using the razor
knife exposing the 4 shielded
pairs and drain wire. Fold the
drain wire over onto the cable for
future use.

Separate the 4 Pairs. Use the razor
knife to carefully remove the
shielding without scoring the wires
beneath it. Repeat for all 4 pairs.

Untwist each pair and straighten
the individual conductors. Be sure
to keep each pair together so it can
be identified.

3 DGKat Twisted Pair Cable Termination

The following sections describe how to properly terminate Kramer DGKat Twisted Pair cables.

3.1 BC-DGKat623 Cable Termination

This procedure describes how to terminate the BC-DGKat623 Twisted Pair cable.

Tools

You will need these tools at hand: a razor knife, wire cutters, a pair of pliers and a standard RJ-45 Crimp Tool.

Step 1: Remove part of the blue jacket

Step 2: Separate the 4 pairs

Step 3: Untwist each pair

4

DGKat - DGKat Twisted Pair Cable Termination

Using the standard wiring scheme shown here
(T-568B), insert the conductors into the plastic
loader piece of the RJ-45 (CCR-RJ45-TP6)
connector. The plastic loader is necessary
because the thickness of CAT 6 cable does not
allow it to sit flat in an RJ-45 connector like in
normal CAT 5. Note how the loader staggers the
cables:

Slide the plastic loader down the
cable as close to the base as
possible. Keep pressure on the
top and bottom of the loader so
the cables stay in place while
sliding down.

Using the wire cutters, cut all conductors
leaving approximately 0.5” remaining.

With the orange pair on the left and the clip of the RJ-45 connector
facing downwards, insert the cable into the RJ-45 connector, pushing the
cable all the way in until the exposed pairs contact the back of the
connector.

Step 4: Insert conductors into the plastic loader

Step 5: Slide the plastic loader down the cable

Step 6: Cut all conductors

Step 7: Insert the cable into the RJ-45 connector

DGKat – DGKat Twisted Pair Cable Termination

5

Using the Standard Crimp Tool, crimp
the RJ-45 connector.

Flip the drain wire up onto the RJ-45
connector. Clamp the strain relief
down on the blue jacket of the
BC-DGKat623 cable using the pair of
pliers.

Solder the drain wire to the metal
casing of the RJ-45 connector and cut
off the excess using the wire cutters.

Verify the continuity of the conductors
and the shield using a cable tester.

Step 8: Crimp the RJ-45 connector

Step 9: Flip the drain wire up onto the RJ-45 connector

Step 10: Solder the drain wire to the metal casing of the RJ-45 connector

6

DGKat - DGKat Twisted Pair Cable Termination

Remove approximately 2.5” of

the jacket using the razor knife
exposing the 4 shielded pairs
and drain wire surrounded by the
braided shield.

Neatly remove the braided shield
aside.

Carefully remove the braided shield
using the razor knife.

Separate the 4 Pairs. Use the razor
knife to carefully remove the
shielding without scoring the wires
beneath it. Repeat for all 4 pairs.

3.2 BC-DGKat7a23 Cable Termination

This procedure describes how to terminate the BC-DGKat7a23 Twisted Pair cable.

Tools

You will need these tools at hand: a razor knife, wire cutters, a pair of pliers and a standard RJ-45 Crimp Tool.

Step 1: Remove part of the jacket

Step 2: remove the braided shield

Step 3: Cut the braided shield

Step 4: Separate the 4 pairs

DGKat – DGKat Twisted Pair Cable Termination

7

Untwist each pair and straighten
the individual conductors. Be sure
to keep each pair together so it can
be identified.

Using the standard wiring scheme shown here
(T-568B), insert the conductors into the plastic loader
piece of the RJ-45 (CCR-RJ45-TP7) connector. The
plastic loader is necessary because the thickness of
CAT 7a cable does not allow it to sit flat in an RJ-45
connector like in normal CAT 5. Note how the loader
staggers the cables:

Slide the plastic loader down the cable
as close to the base as possible. Keep
pressure on the top and bottom of the
loader so the cables stay in place
while sliding down.

Step 5: Untwist each pair

Step 6: Insert conductors into the plastic loader

Step 7: Slide the plastic loader down the cable

8

DGKat - DGKat Twisted Pair Cable Termination

Using the wire cutters, cut all

conductors leaving approximately 0.5”

remaining.

With the orange pair on the left and the clip of the RJ-45 connector
facing downwards, insert the cable into the RJ-45 connector, pushing the
cable all the way in until the exposed pairs contact the back of the
connector.

Using the Standard Crimp Tool, crimp
the RJ-45 connector.

Clamp the strain relief down on the
jacket of the BC-DGKat7a23 cable
using the pair of pliers.

Step 8: Cut all conductors

Step 9: Insert the cable into the RJ-45 connector

Step 10: Crimp the RJ-45 connector

Step 11: Clamp the drain relief

DGKat – DGKat Twisted Pair Cable Termination

9

Flip the drain wire up onto the RJ-45
connector and solder the drain wire to
the metal casing of the RJ-45
connector and cut off the excess using
the wire cutters.

Verify the continuity of the conductors
and the shield using a cable tester.

Remove approximately 2.5” of

the jacket using the razor knife
exposing the 4 shielded pairs
and drain wire.

Remove the polyester foil and
carefully cut it out.

Remove the shielding foil
using the razor knife
exposing the 4 pairs and
drain wire.

Step 12: Solder the drain wire to the metal casing of the RJ-45 connector

3.3 BC-DGKat524 Cable Termination

This procedure describes how to terminate the BC-DGKat524 Twisted Pair cable.

Tools

You will need these tools at hand: a razor knife, wire cutters, a pair of pliers and a standard RJ-45 Crimp Tool.

Step 1: Remove part of the jacket

Step 2: Remove the Polyester foil

Step 3: Remove the shielding foil

10

DGKat - DGKat Twisted Pair Cable Termination

Separate the 4 Pairs.

Untwist each pair and straighten
the individual conductors. Be sure
to keep each pair together so it can
be identified

Place the wire in order

Using the wire cutters, cut all

conductors leaving approximately 0.5”

remaining.

Step 4: Separate the 4 pairs

Step 5: Untwist each pair

Step 6: Place wires in order

Step 7: Cut all conductors

DGKat – DGKat Twisted Pair Cable Termination

11

Using the standard wiring scheme shown here
(T-568B), insert the conductors into the shielded RJ-45
connector:
With the orange pair on the left and the clip of the shieldedRJ­45 connector facing downwards, insert the cable into the RJ-45
connector, pushing the cable all the way in until the exposed
pairs contact the back of the connector

Using the Standard Crimp
Tool, crimp the RJ-45
connector.

Flip the drain wire up onto the RJ-45
connector and solder the drain wire to
the metal casing of the RJ-45
connector and cut off the excess using
the wire cutters.

Verify the continuity of the conductors
and the shield using a cable tester.

Step 8: Insert conductors into the RJ-45 connector

Step 9: Crimp the RJ-45 connector

Step 10: Solder the drain wire to the metal casing of the RJ-45 connector