Cisco GLC-ZX-SM Compatible 1000BASE-ZX SFP 1550nm 70km

Keystron's GLC-ZX-SM-KS is a Cisco® compatible 1000Base-ZX SFP Optical Transceiver for seamless network integration. Our transceivers perform identically to Cisco® original transceivers and are 100% compatible with other OEM and third party transceivers. The GLC-ZX-SM-KS is 100% MSA (Multi-Source Agreement) compliant. All Keystron's transceivers are tested for 100% functionality and guaranteed compatible for outstanding network performance.

Keystron offers full line of Optical Transceivers for all your networking needs. Now you have a reliable, compatible and affordable means to expand your network while maintaining its integrity.

The 1000BASE-ZX SFP operates on standard single-mode fiber-optic link spans of up to approximately 70 km in length. The SFP provides an optical link budget of 21 dB, but the precise link span length depends on multiple factors such as fiber quality, number of splices, and connectors.

When shorter distances of Single-Mode Fiber (SMF) are used, it might be necessary to insert an inline optical attenuator in the link to avoid overloading the receiver. A 10-dB inline optical attenuator should be inserted between the fiber-optic cable plant and the receiving port on the SFP at each end of the link whenever the fiber-optic cable span loss is less than 8 dB.