
3. Remote Switch Type
Selection of the measuring helper type for (remote)
switching of the copper duplex to be tested. There is the
choice between Kurth Electronic Remote KE900 / KE905
(with acknowledgment of the switching commands) and the
Teletech TX915 (restricted function). Alternatively, the
switching operations can also be carried out manually
4. Remote Switch Functions
With the KE2500 you have the possibility to send control
commands directly from the device to the optional
measuring devices like the KE900 / KE905 and the TX915
remote units. The use of the remote unit for remote-
controlled line measurement allows you to:
n
One-man testing, no assistance required
n
Used in areas such as underground distribution,
cable shafts, etc. without communication access
n
Subscribers' line stay in service until testing starts
and will be restored after
n
Remote controlled switching functions such as
cut through, loop, ground and open
n
Measurement up to 30 MHz with the use of the device
at the far end
n
Ideal for testing dual pairs in preparation for channel
bonding
Possible remote unit modes:
4.1 Trace Tone On/Select
So the trace tone loud speaker will be activated and the
trace tone send from KE900 and the port can be changed.
4.2 Open Ports 1+4
Opens Port 1 and stops tracing tone. Used for measure-
ments like open circuit noise, capacitance, leakage
resistance.
Teletech TX915: Open port (OPEN)
4.3 Port 1 Loop
Port 1 pair shorted. Used to measure the loop resistance.
Teletech TX915: A-B-GRD loop (SHORT)
4.4 Port 1 Loop Pulse 3 sec
Port 1 loop pulse for 3 seconds. With it you can clearly detect
the far end with a TDR even the loop is correct terminated on
the CO side.
4.5 Connect Port 1+2
Port 1 connected to Port 2. Used to restore the subscriber's
line before and after testing.
Teletech TX915: Switch
through port (EXCHANGE)
4.6 Connect Port 1+3
Port 1 connected to Port 3. A test set on Port 3 can then be
used for end-to-end measurements like attenuation in
conjunction with a additional signal transmitter on the far
end.
Remote Switch Functions
Remote Switch Functions
Trace Tone On/Select
OPEN
SHORT
EXCHANGE
Control functions with KE90X
Control functions with TX915
Date / Time
Date / Time
1
2
3
4
KURTH ELECTRONIC www.kurthelectronic.de [email protected]
17
Operating Manual
Telco Multimeter
KE2500
Main Menue
Line Multimeter
Remote Switch Type
Remote Switch Functions
Cable Parameter
Date / Time
1
2
3
4
5
6
Allow USB Access
7
Setup
Loop Analysis
<KE90X>
TX915
KE90X
Manual
Trace Tone On/Select
Open Ports 1+4
Connect Port 1+3
Port 1 Loop
Connect Port 1+4
Port 1 Loop Pulse 3sec
Port 1+4 Loop to GND
Port 4 Loop Pulse 3sec
Connect Port 1+2
Port 1+4 Loop
1
2
6
3
7
4
8
0
5
9