OLM Optical Line Monitoring System

The OLM Optical Line Monitoring System category groups the plug-in boards and passive parts used to watch fibre links while they carry traffic: an OTDR card for 1550nm trace and fault location, an OPM power monitoring board for online or offline alarm testing, an OS DFB light source, an OSW optical switch, plus the WDM and Filter modules that pass traffic while reflecting 1625nm test light. They occupy 0.5U or 1U slots and use LC connectors.

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OLM Filter – 1625nm Reflector, LC/SC, ≤1.0dB IL

OLM Filter passes 1260-1600nm traffic with ≤1.0dB insertion loss and reflects 1625±5nm OTDR test light with ≥21dB isolation, over LC/SC connectors.

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OLM OPM Card – Optical Power Monitoring, 2-24 Ch

OLM OPM Card optical power monitoring board in 0.5U, with OPC off-line and OPD on-line models, 2 to 24 channels, ±5% accuracy and 0.01 resolution.

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OLM OS Card – DFB Light Source, 2-18 Ch, LC/PC

OLM OS Card DFB optical light source with 2 to 18 channels, 1310nm to 1610nm wavelengths, -7 to +3 dBm output and a 0.5U slot in OSP3800 chassis.

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OLM OSW Card – Optical Switch, ≤10ms, 1260-1650nm

OLM OSW Card optical switch for 1260-1650nm paths with <1.0dB insertion loss, ≥55dB crosstalk, ≤10ms adjacent switching and a 1 million cycle life.

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OLM OTDR Card – 1550nm, 42dB, 120km Range

OLM OTDR Card for single-mode fibre testing at 1550nm with 42dB dynamic range, 0.125m sampling, ±1m ranging accuracy and measuring ranges up to 120km.

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OLM WDM Card – 1625nm Pass, 1310/1550 Reject

OLM WDM Card for online and spare-fibre monitoring: 1625nm transmission with ≤1.0dB insertion loss and ≥40dB isolation, in a 1U slot with LC/UPC ports.

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