© 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
-
tified 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 identified
with a TDR.
