Kurth Electronic KE901 User manual
KE901
Loop Test Assistant
Version 2.0
© KURTH ELECTRONIC GmbH
All rights reserved, including translations.
All reprints and electronic copies, including excerpts, require prior written approval
of Kurth Electronic GmbH.
All of the brand names and trademarks cited herein are the property of their registered owners.
Operating Manual
Kurth Electronic GmbH | Muehleweg 11 | D 72800 Eningen u.A. GERMANY |
Tel. +49(0)7121 9755 0 | Fax +49(0)7121 9755 56 |
© Kurth Electronic GmbH, All Rights Reserved
2
Introduction
With the KE901 you have purchased a measurement assistant that is easy
and intuitive to use. In order to use the KE901 as often and successfully as
possible, please read these operating instructions carefully.
KE901 Measuring assistant: Remote KE905 and controller KE910
indispensable for:
Work without a second or third person as a measuring assistant
For use in areas such as underground distributors, cable ducts etc.
without communication access
Ensuring the customer line during arrival and departure to the measuring
points
Remote switching of lines, switching of loops, breaks, ground as well as
switching between two line pairs
NoinuenceonthemeasurementuptoVDSLAnnexQwhenusingthe
device at the far end
Ideal for simultaneous testing of two wire pairs for bonding technology
© Kurth Electronic GmbH, All Rights Reserved 3
Turning On
press and hold On/Off button for >1Second.
LOW BATT-LED and will flash shortly forMODE-LED
two times if self-test was OK. If the battery voltage falls
below 7,5 V the red LOW BATT-LED flashes instead of
the green MODE-LED as On-Indicator. If the Battery
voltage falls below 5,1V the unit will turn off. This early
warning is important in case of being prepared to change
the battery in the right time to prevent unnecessarry
waste of time.
Function Mode
After the self-test the green MODE-LED shows for
10 seconds the selected trace tone. After this time the
LED flashes shortly every 3 seconds to save power.
Port 1 is always the remote control port to far end!
To see what trace tone or function is selected simply
press the Mode button less than 1 second. Then the
green LED will show the selected mode. As default trace
tone 1 is on Port 1.
Tochange the mode press the Mode button longer than
1 second and release. Every press changes the mode.
For indication the MODE-LED flashes as follow:
Trace tone 1 on Port 1
Trace tone 2 on Port 1
Tracetone 3 on Port 1
Port 1 and Port 2 connected
After a correct command is received, the MODE-LED
lights up for 1 Second.
How to use
www.kurthelectronic.de - sales @kurthelectronic.de
KE90x REMOTE
PORT 2 PORT 1
PORT 4 PORT 3
Mode On/Off
MODE LOW BATT
Low
Batt
INFO
1
2
3
4
5
Connected
Connected
KE910
CONTROLLER
Trace ON
Shift
LS
Open
Port 1 + Port 4
Schleife
Port 1
Loop pulse 3 sec
Port 1
Port 1 + Port 2
Port 1 + Port 3
Second level
OFF
- Stop Trace
Change Trace Tone
KE910 Controller
KE905 Remote
Tone detection + control output
Speaker
Searchtoneobutton
LOW BATT LED
Sendinfo+acknowledgement
LOW BATT LED
On/Okey
Port 3
Port 4
Mode key
Port 2
Port 1
MODE LED
Control buttons
2x
Symmetrical
test cable
© Kurth Electronic GmbH, All Rights Reserved
4
Remote KE905
During the development of the KE905, emphasis was placed on quick and
easy operation. Therefore the KE905 has only two buttons.
On / O
Press the key for > 1 second to switch on the device. The red LOW BATT LED
andthegreenMODELEDlightupbrieyaftertheself-test.ThegreenMODE
LEDthenindicatesthesetting(default)for10seconds,afterwhichitashes
brieyasaswitch-oncheck.Toswitchito,presstheOn/Obuttonagainfor
> 1 second. When the battery voltage drops below approx. 7.5 volts, the red
LOWBATTLEDashesinsteadofthegreenMODELED.
Mode
With this key the search tone and the port can be selected directly on the
Remote KE905. By default, search tone 1 is always sent on port 1.
If the exchange is to be switched through when the line end is known so
that the line is not left without service for the time of the start and departure,
this can be selected by repeatedly pressing the mode key. The exchange is
switched through if port 1 (control port) and port 2 (exchange) are connected.
Press and hold the mode button to select the function or the search tone. The
MODELEDwillthenashattherateshownbelow:
-- Searchtone1onport1–Default
-� Searchtone2onport1
�- Searchtone3onport1
�� Port 1 and Port 2 connected
TheMODELEDashesfor10secondsintheselectedcycleforinformation
purposes.Thentheswitch-oninfosignalisshown.
The mode key is pressed for < 1 second to deter-
mine which function is selected. The LED display
showsthesettingfor10secondsthroughtheas-
hing cycle.
Default setting
IMPORTANT - port 1 is always
the control port from the far end Port 1 Port 4
Tone 1 / 2
Port 2 Port 3
Mode On-Off
GND
© Kurth Electronic GmbH, All Rights Reserved 5
Controller KE910
KE910 has eight control buttons, two connec-
ting cables with banana plugs and a built-in
loudspeaker. This allows KE910 to be used as
a PROBE for contactless location of cables or
wire pairs.After the wire pair to which the KE905
Remote has been connected has been found,
the KE910 is connected rmly with clamps
or isolating plugs. This is necessary for remote control of the remote unit.
Attention: Before connecting the controller KE910 for remote control,
the connection to the terminal device must be disconnected.
INFO LED
When a control command is sent, the INFO LED lights up for 1 second to
conrmthis.IfthecontrolcommandisdetectedandexecutedbytheRemote
KE905, a high acknowledgement tone is heard. If the command is not reco-
gnized or not executed, the LED does not light up and an interrupted error
tone is heard.
LS search tone
TheLSkeyactivatesthesearchtonespeakerandboththesearchtonesent
byKE905Remoteandtheportcanbeswitched.Tondtheunknownline,
oneofthetwotestcordsisusedasanantennainordertobeabletond
the line you are looking for without touching it. The PROBE KE410 (Art. No.
0.49561-4)can also beused forthis purpose.Tocontrol the remotefunc-
tions, the line must be connected metallically.
Functions
Shift key
TheShiftkeyisusedtoperformcontrolfunctionsonthesecondlevel.Hold
downtheShiftkeyandpressthedesiredsecondkeytocontrolthefunction.
}
Tone
no
tone
Low
Batt
INFO
1
2
3
4
5
Connected
Connected
KE910
CONTROLLER
TraceON
Shift
LS
Open
Port1 + Port 4
Schleife
Port1
Looppulse 3 sec
Port1
Port1 + Port 2
Port1 + Port 3
Secondlevel
OFF
-Stop Trace
ChangeTrace Tone
Port 1 Port 4
Tone 1 / 2
Port 2 Port 3
Mode On-Off
GND
Port 1 Port 4
Port 2 Port 3
GND
Mode On-Off
In the default mode
a congurable tone is
output on port 1.
Shift + LS key
Port 1 is connected to
port 4.
© Kurth Electronic GmbH, All Rights Reserved
6
Port 1 Port 4
Port 2 Port 3
GND
Mode On-Off
Port 1 Port 4
Port 2 Port 3
GND
Mode On-Off
1 key
The connection between
port 1 and port 4 is closed.
This setting disconnects
both the audio transmitter
and the connection to the
exchange. Use to measu-
re e.g. noise, capacitan-
ce, voltage, isolation etc.
Shift key + 1
Port 1 and port 4 loop.
Port 1 Port 4
Port 2 Port 3
GND
Mode On-Off
OFF key
The speaker is turned off by pressing the
OFF key or any other control key. The LS
button activates the search tone speaker
and switches the search tone and port
sent by KE905 Remote.
Shift key + OFF
Port 1 is connected to
port 2 and port 3 is in-
dependently connec-
ted to port 4. This
allows independent
measurements on two
separate wire pairs.
Port 1 Port 4
Port 2 Port 3
GND
Mode On-Off
Port 1 Port 4
Port 2 Port 3
GND
Mode On-Off
2 yey
Loop on port 1. Use to
measure loop resistance.
Shift key + 2
Port 1 and Port 4
loop and connected
to ground e.g. for
resistance symmetry
measurement
Port 1 Port 4
Port 2 Port 3
GND
3 Sekunden
Mode On-Off
Port 1 Port 4
Port 2 Port 3
GND
3 Sek.
Mode On-Off
3 key
Port 1 loop at 3-second
intervals. This allows the
end of the line to be iden-
tied with a TDR.
Shift key + 3
Port 1 and Port 4 loop
at 3-second intervals.
This allows the end
of the connected wire
pair to be identied
with a TDR.
© Kurth Electronic GmbH, All Rights Reserved 7
KE905 Remote
Solid, impact-resistant and waterproof
ABS casing
Battery compartment with captive screws
Four sockets for 3-pole TF connectors
Resistant Mylar front foil with short
operating information
2 special test cables for measurements
up to VDSL Annex Q
Insertion loss: 0 - 30 MHz < 0.5 dB
Crosstalk: -78 to -56 dB
Overvoltage protection up to 160 V AC / DC
1x 9 V battery, battery life approx. 200
hours at 450 mAh
Dimensions 160 x 95 x 35 mm
Weight with battery 290 g
KE910 Controller
Solid, impact-resistant and waterproof
ABS casing
Robust rubber keys
Battery compartment with captive screws
Short operating information on the back
side
Insulated test leads with banana plugs
Modied DTMF control signals
Gain Probe function min. 56 dB
Overvoltage protection up to 160 V AC / DC
1x 9 V battery, min. battery life 40 hours
at 450 mAh battery and use of speaker
< 10%
Dimensions 160 x 95 x 35 mm
Weight with battery 95 g
Port 1 Port 4
Port 2 Port 3
GND
Mode On-Off
Port 1 Port 4
Port 2 Port 3
GND
Mode On-Off
4 key
Port 1 is switched to port
2. Can also be used to re-
connect the exchange line
to the customer after the
end of work.
Shift key + 4
Port 4 is connected
to port 2. This can be
used, for example, to
switch the exchange
line to another pair of
wires.
Port 1 Port 4
Port 2 Port 3
GND
Mode On-Off
Port 1 Port 4
Port 2 Port 3
GND
Mode On-Off
4 key
Port 1 is switched to port
3. This allows e.g. a level
transmitter connected to
port 3 to be switched to
the customer line on port
1, e.g. to measure the at-
tenuation.
Shift key + 5
Port 4 connected to
port 3, port 1 open.
Technical data
© Kurth Electronic GmbH, All Rights Reserved
8
The device was manufactured according to the following guidelines:
Electromagnetic Compatibility Directive 2014/53/EC
LVDDirective2014/53/EC
IEC/CISPR:11:2009+A1:2010,16-1-2:2006Edition1.2,16-2-1:2008+
A1:2010,16-2-3:2008+A1:2010
IEC:61000-4-1:2016,61000-4-2:2008Edition2,61000-4-3:2006+
A1:2007+A2:2010,61000-4-8:2009,61326-1:2012,61326-2-1:2012
Safety instructions
The KE901 may only be operated with the accessories originally provi-
ded. Using the device with accessories that are not original or for ap-
plications for which it was not intended can lead to incorrect measure-
ments and may damage the device. The relevant safety regulations in
VDE0100,0800and0805mustbeadheredto.
The usage of connections other than those provided can damage
thedevice.Thedeviceshouldnotbeusedwithhigh-voltagecurrent.
Kurth Electronic assumes no liability for damage resulting from
improper use.
Never apply external voltage to the device.
Open the device only to change the batteries. There are no other
parts in the device that need to be serviced or calibrated.
The measuring device is protected from splashing water and dust by
thefrontlmcovering.However,itisnotwaterproof.
Never pull unnecessarily on the cables connected to the device.
Last revision: 09 / 2018
Table of contents
