Juniper Networks M20 manual DS3 PIC

DS3 PIC

LEDs

Alarms, errors, and events

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

■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

DS3 PIC ■ 37