Juniper Networks M20 manual Channelized T1 IQ PIC

Channelized T1 IQ PIC

Software features

Cables and connectors

LEDs

Alarms, errors, and events

Instrumentation (counters)

■Quality of service (QoS) per channel: weighted round-robin (WRR), random early detection (RED), weighted random early detection (WRED)

■SNMP: T1 MIB and DS0 MIB

■Dynamic, arbitrary channel configuration

■Full bit error rate test (BERT) patterns at T1 and DS0 levels

■Encapsulations:

■High-Level Data Link Control (HDLC)

■Frame Relay

■Circuit cross-connect (CCC)

■Translational cross-connect (TCC)

■Point-to-Point Protocol (PPP)

■120-ohm RJ-48C connector (female)

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)

■Remote defect indication (RDI)

■Loss of frame (LOF)

■Loss of signal (LOS)

■Bipolar violation (BPV)

■Excessive zero (EXZ)

■Line code violation (LCV)

■Error seconds (ES)

■Severely errored seconds (SES)

■Severely errored frames (SEF)

■Bit error event (BEE)

■Layer 2 per-queue and per-channel packet and byte counters

■24–hour history or error counter updated at 15–minute intervals

Channelized T1 IQ PIC ■ 35