Juniper Networks M20 manual E1 PIC

E1 PIC

Cables and connectors

LEDs

Alarms, errors, and events

■Two versions:

■Four RJ-48 connectors (one per port)

■Four coaxial connectors

■Custom 10-ft (3.05-m) posilock to BNC male cable, separate Rx and Tx

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)

■Bipolar violations

■Excessive zeros

■Far-end block errors (FEBE, E-bit errors)

■Loss of frame (LOF), Loss of signal (LOS)

■Local and remote loopback diagnostics

■Yellow alarm bit (X-bit) disagreements

E1 PIC ■ 39