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Networklevel protection (packet)
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Tunnel 1:1/1+1 APS, PW 1:1/1+1 APS, LPT
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Networklevel protection (TDM)
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• SDH protection: subnet connection protection, linear MSP, ring MSP, DNI protection, shared-fiber virtual path protection, optical-path-shared MSP • EoS protection: LCAS, LPT, STP/RSTP, MSTP, RPR, VP-Ring/VC-Ring protection
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Devicelevel protection
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• Packet LAG • TDM: TPS, BPS, PPS, LAG, DLAG • 1+1 hot backup for system control, switching, and timing units • 1+1 hot backup for power input units • 1:N protection for +3.3 V power supply of the board • Intelligent fan • Board protection modes under abnormal conditions
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Maintenance
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MPLS OAM
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CV, FFD, BDI, FDI, Ping, Traceroute
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ETH OAM (packet)
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• Ethernet service OAM: CC, LB, LT, LM (only singleended LM), DM (only two-way DM) • Ethernet port OAM: OAM auto-discovery, link performance monitoring, remote loopback, fault detection, self-loop detection
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ETH OAM (TDM)
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• Ethernet service OAM: CC, LB, LT, OAM_Ping • Ethernet port OAM: OAM auto-discovery, link performance monitoring, remote loopback, fault detection, self-loop detection
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Synchronization
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Packet
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• Physical-layer clock (SDH) • Synchronous Ethernet • IEEE 1588v2 • CES ACR
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TDM
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Physical-layer clock (SDH)
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DCN
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Outband DCN
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HWECC, IP over DCC, OSI over DCC
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Inband DCN
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HWECC, IP
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Standard working voltage
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• If the standard voltage of the input power is -48 V, the power voltage ranges from -38.4 V to -57.6 V. • If the standard voltage of the input power is -60 V, the power voltage ranges from -48 V to -72 V.
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Installation method
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ETSI cabinet, 19-inch cabinet, wall, desk
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Equipment running environment
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Subrack temperature
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• Long-time operation: 0ºC to 45ºC • Short-time operation: -5ºC to +55ºC
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Subrack humidity (relatively)
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• Long-time operation: 5-85% • Short-time operation: 5-95%
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Reliability specifications
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System availability
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0.9999953
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Mean time to resolution (MTTR)
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2 hours
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Mean time between failures (MTBF)
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• OptiX OSN 1500A: 48.16 years • OptiX OSN 1500B: 48.07 years
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