ADSL2+ Tester 4 Navigating the Displays
72-0046-03A 39
Caution:
As the different protocol is selected, the corresponding settings will be
displayed in Page 1 and Page 2 of
“
Modem Simulator
”
settings menu. Please
refer Table 7 for the detailed information about the protocols.
•
Refer to the relative parts of
WAN PING
for the settings menu with
PPPoE
protocol;
•
Refer to the relative parts of
WAN PING
for the settings menu with
PPPoA
protocol;
•
Refer to the relative parts of
WAN PING
for the settings menu with
BRIDGE
protocol;
•
Refer to the relative parts of
WAN PING
for the settings menu with
MER
protocol;
•
Refer to the relative parts of
WAN PING
for the settings menu with
IPoA
protocol;
4.2.8
“
DMM
”
settings menu
Effective DSL service testing requires that every layer of the DSL stack can be tested
individually; at the Physical, DSL, ATM, IP, PPP and Application layer. Before higher layer
testing is performed, it is important to check the quality of the local loop. The quality of the
local loop can be easily determined with the standard tip-to-ring (T-R), tip-to-ground
(T-G), and ring-to-ground (R-G) parameters used to perform the following basic
measurements: DC Voltage, DC Current, Loop Current, AC Voltage, Loop Resistance,
Isolation Resistance and Capacitance.
The use of a digital multimeter provides the telecomms technician with an invaluable
source of information regarding the condition of the local loop. The DMM can be used for
both basic installation/commissioning and basic troubleshooting activities.
In the main settings menu, move the cursor to the position of
“
Function
”
and press
“
F4
”
key to reveal the DMM option. And press
“
F3
”
key to select
DMM
to start the test, as
shown in Fig 17.
Fig 17:
“
DMM
”
settings menu
S ett ings 10:30:00
F unct ion [
DMM
]
Test Mode [AUTO]
TRACE
MODEM
SIM ULA
> >
DMM
i
Tester is ready for use
