1/2/4G Transceiver Modules
Allen-Bradley
1G SFP
LS-SM311G-10I
1783-SFP1GLX Compatible LINK-PP LS-SM311G-10I 1G SFP 1310nm 10km Duplex LC DOM SMF, Allen-Bradley
Cisco
1G SFP
LS-SM311G-10I
GLC-LH-SMD Compatible LINK-PP LS-SM311G-10I 1G SFP 1310nm 10km Duplex LC DOM SMF, Cisco
Finisar
1G SFP
LS-MM851G-S5C
FTLF8519P3BNL Compatible LINK-PP LS-MM851G-S5C 1G SFP 850nm 550m Duplex LC DOM MMF, Finisar
LINK-PP
1G SONET/SDH SFP
LS-SM552G-A2C
LS-SM552G-A2C 2.5G SFP 1550nm 120km Duplex LC DOM SMF, LINK-PP
LINK-PP
1G SONET/SDH SFP
LS-SM5506-A2I
LS-SM5506-A2I 622M SFP 1550nm 120km Duplex LC DOM SMF, LINK-PP
LINK-PP
1G CWDM/DWDM SFP
LS-CW311G-20C
LS-CW311G-20C 1.25G SFP 1310nm 20km Duplex LC DOM SMF, LINK-PP
Cisco
1G CWDM/DWDM SFP
LS-CW311G-20C
CWDM-SFP-1310-20 Compatible LINK-PP LS-CW311G-20C 1.25G SFP 1310nm 20km Duplex LC DOM SMF, Cisco
Arista
1G CWDM/DWDM SFP
LS-CW311G-20C
SFP-1G-CW-1310-20 Compatible LINK-PP LS-CW311G-20C 1.25G SFP 1310nm 20km Duplex LC DOM SMF, Arista
Reliable Legacy and Entry-Level Optical Solutions – 1G to 4G Transceivers
LINK-PP offers a wide range of 1G, 2.5G, and 4G optical transceiver modules tailored for legacy network systems, industrial applications, and access-layer deployments. Our portfolio includes standard 1000BASE-SX, 1000BASE-LX, and 1000BASE-ZX SFP modules for multimode and single-mode fiber, as well as BiDi SFPs, CWDM/DWDM variants, and specialized SONET/SDH and Fibre Channel models.
Designed for compatibility with Cisco GLC-SX-MMD and other major brands, these modules support hot-swapping, digital diagnostics (DDM), and operate at wavelengths from 850nm to 1550nm. Whether you're upgrading enterprise networks, connecting telecom edge equipment, or maintaining legacy fiber links, LINK-PP ensures stable and cost-effective connectivity across 1X9, SFF, and SFP form factors.
All modules undergo rigorous compatibility testing with popular switches, routers, and media converters. With extended temperature support and long-term product availability, LINK-PP helps extend the life cycle of existing fiber infrastructures.
📘Frequently Asked Questions about 1/2/4G Optical Transceivers
- Q: What's the difference between 1G SFP and BiDi SFP modules
A: BiDi SFP modules transmit and receive signals over a single fiber using different wavelengths, while standard 1G SFPs use two separate fibers — one for transmitting and one for receiving. - Q: Are CWDM and DWDM SFP modules available for 1G fiber networks?
A: Yes. 1G CWDM and DWDM SFP modules are available in various wavelengths from 1270nm to 1610nm, suitable for access and metro networks needing multiple wavelength multiplexing. - Q: Are LINK-PP modules compatible with Cisco GLC-SX-MMD?
A: Absolutely. LINK-PP offers fully compatible 1G SFP transceivers that match Cisco GLC-SX-MMD in performance, DDM support, and form factor, but at more competitive pricing.
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