KURTH ELECTRONIC www.kurthelectronic.de [email protected]
13
1.9 PPA and Signature detection
With the
PPA
detection (Passive test completion), it is possible to
check whether a TAE of the Deutsche Telekom is properly
installed on the subscriber side. The PPA is installed in the first
TAE at the participant. With the help of the PPA the Telekom can
measure the line into the house to the 1. TAE and thus detect
possible errors.
The
Signature
is a feature of the DSL connection cable supplied
by Deutsche Telekom together with DSL routers for the All-IP
connection.
With the
Signature
detection can be checked whether the
subscriber has the DSL router from the Telekom properly
connected with the cable provided to the TAE socket.
The detection can be canceled with ESC.
Possible results:
- PPA not recognized
- Signature not recognized
- PPA A-B detected
- PPA inverse detected
- Signature detected
- PPA detection is not unique
- Signature not recognizable
- Signature not recognized, PPA present
- 2 or more PPA A-B detected
- 2 or more PPA inverse detected
- 2 x PPA antiparallel suspected
- Resistance A-B and B-A too small
1.10 Current
In this setting, the KE2500 measures the DC (DC) and AC (AC)
currents. This makes it possible to assess whether the available
power is sufficient for ISDN or analogue connections.
Measuring method
Connect the wires to be measured and the shield of the cable.
Select the
Current
mode and press
SEL
. The measurement is
then started automatically. The results of the measurement of
alternating and direct current are shown in amperes. Under
F1
measuring points. The measurement points can be selected,
e.g. (A-B) and between a pair of wires and the ground (A-GND,
B-GND).
1.12 Insulation (quick)
As 1.5 Isolation, a filter accelerates the measurement, other
settings see 1.4 Isolation (Page 11).
PPA-Signature-Detection
Detection running
Date / Time
PPA-Signature-Detection
Date / Time
PPA A-B detected
Operating Manual
Telco Multimeter
KE2500
Current
DC:
AC:
Date / Time
Probe
A - B
A - GND
B - GND
0,000 A
A - B
0,004 A
Signature not
recognizable