InnoMedia MTA8000 Series Administrative Guide
Page 44
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Default Ring
Cadence
For a telephone receiving an incoming call,
the default timing pattern of the incoming
ring-signal.
Ring Cadence,
1-5
Different Ring Cadence settings for
distinctive rings.
Splash Ring
A short ring to notify that some specified call
features are processed. For instance, a short
ring (splash tone) can be used to notify each
time a call is forwarded.
4.4
Line Diagnostics
4.4.1
GR909 Tests: triggered from the WEB Administrative Console
Figure 38. GR909 Line Test (illustrative example showing a four port ATA)
MTA supports GR-909 test items which use a suite of standards-based electrical tests. Click all the checkboxes
for which GR909 confirmation is required. Then Click the <Start Test> button.
NOTE: If the Receiver is Off-hook, the REN Test and the Resistive Faults Test will show failures.
Field Name
Description
GR909 Line
Diagnostic Test
A suite of standards-based electrical tests
which detect physical problems with the
phone line.
FEMF/HAZ Test
This procedure tests for hazardous
electromotive force (HEMF) and foreign
electromotive force (FEMF) between the
TIP-GROUND and RING-GROUND leads. It
reports a failure if the following limits are
exceeded:
–
Foreign DC HEMF limit = 135V.
–
Foreign AC HEMF limit = 50Vrms.
–
Foreign DC EMF limit = 6V.
–
Foreign AC EMF limit = 10Vrms.
NOTE: Once this test is initiated and if a
failure is detected, the test will
automatically run periodically, e.g., every 30
sec till the foreign voltage is removed.
