ADTRAN T200 FNID Guía de usuario descargar pdf (Pagina 11)

Power Indicator

The PWR (green) LED will be ON when acceptable power is detected at the card. Span power or a local

power source can provide enough power for the system. When the power LED is off, the system is not

detecting enough power to operate.

T1 Activity

The ACTIVE (green) LED will be ON when a valid DS1 signal is detected at the RJ connector.

Alarm Indication Signal

The AIS alarm (red) LED will be ON whenever a series of unframed all-ones are received at the input of the

T1 LIU. This alarm indicates that equipment down the line from the T1 receiver has detected a loss of

signal and is transmitting an unframed all-ones alarm signal.

Bipolar Violation

The BPV alarm (yellow) LED will be looking for any bipolar violations at the receive T1 LIU. The LED will

remain ON for a visible period per detected event. BPV detection can indicate loss of line integrity at the

receiver.

Note: If the transmitting equipment is using encoded B8ZS, and the card is configured for AMI, the

channel BPV alarm LED will turn ON.

Single Channel T1 LED Indicators

Note Bi-color LEDs

! RLH Industries, Inc. • Tel. 866-DO-FIBER • Fax 714 532-1885 • www.ﬁberopticlink.com! Page 11

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ADTRAN T200 FNID Guía de usuario Pagina 11