GT909 Test Triggered from the web management console
The device supports GR-909 test items which use a suite of standards-based electrical tests to diagnose potential line faults. Click all the checkboxes for which GR-909 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.
|GR-909 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.
|Receiver Off-Hook Test||This procedure discriminates between resistive fault and a receiver off-hook condition by checking for a non-linear DC resistance.|
|REN Test||This procedure measures REN (Ringer Equivalence Number) loading by measuring the load impedance at 20 Hz. An REN loading of less than 0.175 REN or greater than 3 REN is reported as a failure.|
|Resistive Faults Test||This procedure measures TIP to RING on-hook DC resistance. A DC resistance less than 150 kΩ is reported as a failure.|