GLC-2BX-D-20KM Cisco Compatible BiDi SMF Transceiver

The GLC-2BX-D-20KM is a optical transceiver compatible with Cisco platforms. Plug-and-play, no configuration required.

• Fiber Type: SMF
• Connector: Simplex LC
• OEM Equivalent: GLC-2BX-D-20KM

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. Confirm your exact chassis, line card, and OS release against the Cisco matrix before deployment.

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

OEM-compatible and MSA-compliant. Manufactured to MSA specifications following ISO-certified processes. Class 1 laser certified, RoHS compliant. Digital Diagnostic Monitoring (DDM/DOM) supported. Every module is tested for traffic conformity per supported layer 2/3 protocols, DOM threshold verification, EEPROM/MSA value verification, serial number verification, and optical cleanliness before shipment.

Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In stock and ships same or next business day. Trusted by network engineers and procurement teams across North America for over 10 years.