SFPs / Transceivers
Lantronix TN-GLC-ZX-SM Series Cisco-Compatible 1550 nm Gigabit SFPs
Cisco-compatible 1 Gbps SFP transceivers for long single-mode fiber spans, using 1550 nm optics on duplex LC with digital diagnostics, in 80, 120 and 150 km versions and one hardened model.
From $407.00
Overview
About the Lantronix TN-GLC-ZX-SM Series
The TN-GLC-ZX-SM Series (an alternative to the GLC-ZX-SM part number) is a family of Cisco-compatible Gigabit SFP modules for long-haul single-mode links, the kind used between buildings across a metro area, along utility rights-of-way or between distant campus sites. All modules transmit at 1550 nm over duplex single-mode fiber with LC connectors, and Lantronix lists the optics as 1000Base-LX in the part descriptions.
What sets the part numbers apart is reach. The standard TN-GLC-ZX-SM is rated for 80 km (49.7 mi) with a 24.0 dB link budget, the -12 for 120 km (74.6 mi) at 31.0 dB, and the -15 for 150 km (93.2 mi) at 37.0 dB. Every module supports digital monitoring interface (DMI) diagnostics, so the host can read optical power and module health.
Standard modules operate from 0°C to 70°C. The TN-GLC-ZX-SM-RGD is the hardened version, rated -40°C to 85°C with storage to 100°C, for outdoor cabinets and industrial switches. The pack lists all versions as TAA compliant. Modules draw 0.66 W from 3.3 V, comply with IEEE 802.3 and carry IEC-60825 and FDA 21 CFR 1040.10 and 1040.11 laser safety certification.
Key capabilities
- 80, 120 or 150 km
- Three reach options on single-mode fiber, with link budgets of 24.0, 31.0 and 37.0 dB respectively.
- Cisco compatible
- Lantronix markets the series as Cisco-compatible Gigabit SFP modules, following the GLC-ZX-SM naming convention. The modules use duplex LC connectors.
- DMI diagnostics
- Every module includes a digital monitoring interface (DMI), so the host switch can report transmit and receive optical levels and module status.
- Hardened option
- TN-GLC-ZX-SM-RGD operates from -40°C to 85°C and stores to 100°C, for outdoor cabinets, substations and roadside enclosures.
- TAA compliant
- All four part numbers are listed as TAA compliant, which matters for US government and public-sector projects.
How to choose the right TN-GLC-ZX-SM Series part number
Choose by span length and temperature. TN-GLC-ZX-SM covers up to 80 km (24.0 dB budget) and TN-GLC-ZX-SM-12 up to 120 km (31.0 dB). TN-GLC-ZX-SM-15 reaches 150 km (37.0 dB). TN-GLC-ZX-SM-RGD matches the 80 km module but is rated -40°C to 85°C instead of 0°C to 70°C. All are 1 Gbps, 1550 nm, duplex LC with DMI. On shorter spans a high-budget module may need an attenuator, so size the part to your measured fiber loss.
Configure & order
Find your TN-GLC-ZX-SM Series part number
Every orderable TN-GLC-ZX-SM Series configuration, filtered by the specs that actually differ between them. Pick what you need on the left and the matching part numbers appear here.
TN-GLC-ZX-SM
$407.00
Ships on backorder
TN-GLC-ZX-SM-12
$473.00
Ships on backorder
TN-GLC-ZX-SM-15
$539.00
Ships on backorder
TN-GLC-ZX-SM-RGD
$429.00
Ships on backorder
Where the TN-GLC-ZX-SM Series is used
- Metro and inter-campus Gigabit links up to 150 km
- Utility and pipeline fiber along long rights-of-way
- Hardened outdoor cabinet links using the RGD model
- Cisco switch uplinks needing long-reach single-mode optics
TN-GLC-ZX-SM Series datasheets & documentation
TN-GLC-ZX-SM Series FAQ
What is the reach of each TN-GLC-ZX-SM module?
TN-GLC-ZX-SM and TN-GLC-ZX-SM-RGD reach 80 km, TN-GLC-ZX-SM-12 reaches 120 km and TN-GLC-ZX-SM-15 reaches 150 km, all over single-mode fiber at 1550 nm. All use duplex LC connectors and include DMI.
Are TN-GLC-ZX-SM SFPs compatible with Cisco switches?
Lantronix describes the TN-GLC-ZX-SM Series as Cisco compatible Gigabit SFP modules. They use duplex LC connectors and support DMI diagnostics. Lantronix lists IEEE 802.3 compliance.
Which TN-GLC-ZX-SM model works in extreme temperatures?
The TN-GLC-ZX-SM-RGD operates from -40°C to 85°C and stores from -40°C to 100°C. The other models operate from 0°C to 70°C. It shares the 80 km reach and 24.0 dB link budget.
How much power does a TN-GLC-ZX-SM SFP draw?
0.66 W from a 3.3 V supply. The module measures 13 x 55 x 8 mm, the standard SFP envelope. It meets IEC-60825 and FDA laser safety standards.
What is the link budget of the TN-GLC-ZX-SM-15?
37.0 dB, supporting spans up to 150 km (93.2 mi). The 120 km TN-GLC-ZX-SM-12 has a 31.0 dB budget and the 80 km models 24.0 dB.
