Juniper Networks M120 manual Optical Interface Support for Channelized OC3 IQ PICs

M120 Internet Router PIC Guide

Software features

Cables and connectors

LEDs

Alarms, errors, and events

■Quality of Service (QoS) per channel: weighted round-Robin (WRR), random early drop (RED), weighted random early drop (WRED)

■Simple Network Management Protocol (SNMP): OC3 MIB, DS3 MIB, T1 MIB

■Dynamic, arbitrary channel configuration

■Full Bit Error Rate Testing (BERT)

■Encapsulations:

■High-Level Data Link Control (HDLC)

■Frame Relay

■Circuit cross-connect (CCC)

■Translational cross-connect (TCC)

■Point-to-Point Protocol (PPP)

■Duplex SC/PC connector (Rx and Tx); single-mode fiber intermediate-reach fiber

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-L, AIS-P)

■Bit error rate signal degrade (BERR-SD), bit error rate signal fail (BERR-SF)

■Bit interleaved parity errors B1, B2, B3 (CV-S, CV-L, CV-P)

■Errored seconds (ES-S, ES-L, ES-P), far-end bit errors REI-L, REI-P (CV-LFE, CV-PFE), far-end Block error (FEBE), far-end errored seconds (ES-LFE, ES-PFE), far-end severely errored seconds (SES-LFE, SES-PFE), far-end unavailable seconds (UAS-LFE, UAS-PFE)

■Frame error

■Idle code, idle received

■Loss of frame (LOF), loss of pointer (LOP-P), loss of signal (LOS)

■Out of frame (OOF)

■Payload mismatch (PLM-P), payload unequipped (UNEQ-P)

■Parity bit (P-bit) disagreements

■Path parity error

■Remote defect indication (RDI-L, RDI-P)

■Severely errored framing (SEF), severely errored framing seconds (SEFS-S), Sseverely errored seconds (SES-S, SES-L, SES-P), unavailable seconds (UAS-L, UAS-P)

■Yellow alarm bit (X-bit) disagreements

Table 12: Optical Interface Support for Channelized OC3 IQ PICs

PIC Type	Intermediate Reach (IR)
Optical interface	Single-mode
Standard	Telcordia GR-253
Maximum distance	9.3 miles/15 km
Transmit wavelength	1274 through 1356 nm

38■ Channelized OC3 IQ PIC