Juniper Networks Juniper M-series M10i - Manual (Page 33)

One tricolor per port:
■ Off—Not enabled
■ Green—Online with no alarms or failures
■ Amber—Online with alarms for remote failures
■ Red—Active with a local alarm; router has detected a failure
LEDs
■ Alarm indication signal (AIS)
■ Bit error rate test (BERT) functionality on PIC (you can configure one DS3 channel in
BERT mode and configure the remaining channels to transmit and receive normal traffic)
■ Equipment failure (does not affect service)
■ Far-end block error (FEBE)
■ Frame error
■ Idle code, Idle received
■ Local and remote loopback
■ Loss of signal (LOS)
■ Out of frame (OOF)
■ Parity bit (P-bit) disagreements
■ Path parity error
■ Yellow alarm bit (X-bit) disagreements
Alarms, errors, and
events
DS3 PIC ■ 33
DS3 PIC