ONS-SI-GE-ZX Cisco Compatible 1G SFP 80km SMF Transceiver

For long-haul Gigabit spans that push past the LR limit, the ONS-SI-GE-ZX is a 1G ZX SFP reaching up to 80km over single-mode fiber through a duplex LC connector. It fits a standard SFP port and comes up on Cisco platforms with no configuration required, presenting itself as a recognized module. Optical power and temperature are readable over DDM across the full 80km reach.

• Form Factor: SFP
• Data Rate: 1G
• Fiber Type: SMF
• Reach: 80km
• Connector: Duplex LC
• OEM Equivalent: ONS-SI-GE-ZX

Compatibility: Documented OEM compatibility (Cisco published compatibility documentation): this module is accepted in 1G SFP ports on the ASR 9000 Series, ASR 920 Series, Catalyst 1000 Series, Catalyst 9200 Series, Catalyst 9300 Series, Catalyst 9400 Series, ISR 4000 Series, NCS 540 Series, and Nexus 9300 Series. This module follows Cisco's published compatibility matrix; for your exact line card or OS release, email 10.4@tenfouroptics.com and we'll confirm fit.

Tested & Proven: Every TenFour Optics part is coded, tested, and verified before shipment — see Tested & Proven.

Coded to the Cisco ONS-SI-GE-ZX, it behaves as a native part on Cisco equipment. Manufactured to MSA specification and individually verified before it ships, the module holds the ZX reach class across its rated 80km. Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In stock — ships same or next business day.