Is this module fully compliant with the SFF-8472 protocol? Our IT admin needs to ensure the digital optical monitoring (DOM) functions correctly on our dashboard.

You're good to go! It’s 100% SFF-8472 compliant, so your IT team can natively pull all real-time DOM/DDM telemetry—like rx/tx optical power, voltage, and temperature—straight into your existing network management systems without any patching.

Hey guys, will this 1.25G module work nicely with our existing Cisco Catalyst and some Juniper switches in the same rack?

Yes, absolutely! This SFP module is fully SFF-8472 MSA compliant. We’ve extensively tested it to work seamlessly across mixed environments containing Cisco, Juniper, Arista, and other major switches without throwing any third-party optic warnings.

Can I use multi-mode fiber with this module, or does it strictly require single-mode fiber with an LC adapter?

You strictly need Single-Mode Fiber (SMF) with a Duplex LC connector for this module. Since it utilizes a powerful 1550nm DFB laser to push data up to 160km, multimode fiber simply can't handle the transmission physics for this ultra-long-haul setup.

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Cisco GLC-EZX-SM-160 Compatible LINK-PP 1.25G SFP 1550nm 160km Duplex LC DOM SMF Optical Transceiver Module

Name: Cisco GLC-EZX-SM-160 Compatible LINK-PP 1.25G SFP 1550nm 160km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 214124
Price: 33.97 USD
Availability: InStock
Rating: 5 (32 reviews)

# 214124

Product: Cisco GLC-EZX-SM-160 Compatible LINK-PP 1.25G SFP 1550nm 160km Duplex LC DOM SMF Optical Transceiver Module
SKU: 214124
P/N: LS-SM551G-A6C
Price: $ 39.5
Stock: 3173 in Stock
Sold: 777
Product URL: https://www.l-p.com/products/476877.htm

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Manufacture: LINK-PP

P/N: LS-SM551G-A6C

Compatible:: Cisco; LINK-PP; Alcatel-Lucent; Arista; Brocade; Ciena; Dell; Extreme; FS; Fortinet; Generic; H3C; IBM; Intel; Juniper; NVIDIA/Mellanox; Netgear

Compatible P/N:: SFP1G-SX-31 | 2km; SFP1G-SX-31-I | 2km; GLC-LH-SM | 10km; GLC-LH-SMD | 10km; GLC-LH-SM-20 | 20km; GLC-LX-SM-RGD | 20km; GLC-EX-SM1550-40 | 40km; GLC-EX-SMD | 40km; MGBLH1 | 40km; GLC-ZX-SM | 80km; GLC-ZX-SM-RGD | 80km; GLC-EZX-SM-100 | 100km; GLC-EZX-SM-120 | 120km; GLC-EZX-SM-160 | 160km

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Cisco GLC-EZX-SM-160 Compatible LINK-PP 1.25G SFP Specifications

The Cisco GLC-EZX-SM-160 Compatible LINK-PP module is a high-performance Small Form-factor Pluggable transceiver specifically designed for Gigabit Ethernet applications. Operating at a data rate of 1.25Gbps, this commercial-grade module features a 1550nm DFB transmitter paired with a highly sensitive APD receiver, enabling reliable ultra-long-haul optical data transmission up to 160km over single-mode fiber infrastructure.

Cisco Part Number	GLC-EZX-SM-160	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1550nm	Max Cable Distance	160km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	APD
TX Power	0 to +5dBm	RX Power	-30 to -1dBm
Receiver Sensitivity	-32dBm	DOM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	SFF-8472 MSA Compliant, IEEE 802.3ah-2004

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Q: Is this module fully compliant with the SFF-8472 protocol? Our IT admin needs to ensure the digital optical monitoring (DOM) functions correctly on our dashboard. By D***e on 2026-04-10

A: You're good to go! It’s 100% SFF-8472 compliant, so your IT team can natively pull all real-time DOM/DDM telemetry—like rx/tx optical power, voltage, and temperature—straight into your existing network management systems without any patching. By admin on 2026-04-10
Q: Hey guys, will this 1.25G module work nicely with our existing Cisco Catalyst and some Juniper switches in the same rack? By A***g on 2025-05-09

A: Yes, absolutely! This SFP module is fully SFF-8472 MSA compliant. We’ve extensively tested it to work seamlessly across mixed environments containing Cisco, Juniper, Arista, and other major switches without throwing any third-party optic warnings. By admin on 2025-05-09
Q: Can I use multi-mode fiber with this module, or does it strictly require single-mode fiber with an LC adapter? By S***n on 2025-01-25

A: You strictly need Single-Mode Fiber (SMF) with a Duplex LC connector for this module. Since it utilizes a powerful 1550nm DFB laser to push data up to 160km, multimode fiber simply can't handle the transmission physics for this ultra-long-haul setup. By admin on 2025-01-25

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C***n

Ukraine

Verified Purchase

5 .0

2026-04-20

Excellent 1.25G SFP 160km transceiver module!

92 Helpful vote Comments

B***t

Argentina

Verified Purchase

5 .0

2026-03-21

We did multi-brand switch compatibility tests linking Juniper and Arista gear. This 1.25G SFP transceiver synced immediately without MSA protocol errors. Excellent for our London data center bulk deployment.

211 Helpful vote Comments

K***n

Spain

Verified Purchase

5 .0

2026-01-07

Upgraded our enterprise NAS networking with this Gigabit SFP module. The DOM optical monitoring perfectly integrates with our dashboard, maintaining zero packet loss over the long-haul 1550nm fiber link.

32 Helpful vote Comments

E***t

Mexico

Verified Purchase

5 .0

2025-12-28

Solid 1.25Gbps fiber interface for our Dell switches in the Toronto server room.

106 Helpful vote Comments

J***n

Mexico

Verified Purchase

5 .0

2025-12-22

Great SMF optical transceiver for datacenters.

148 Helpful vote Comments

C***z

Venezuela

Verified Purchase

5 .0

2025-11-05

Very stable 1.25G transceiver. The DFB transmitter handles our heavy database replication easily.

162 Helpful vote Comments

K***z

Malaysia

Verified Purchase

5 .0

2025-08-09

Plug and play on Extreme switches. ✌️

181 Helpful vote Comments

J***g

Ecuador

Verified Purchase

5 .0

2025-07-01

Used this for a regional base station backhaul over 120km single-mode fiber. The DFB laser holds strong optical power, and 0-70°C operating temperature is stable for our indoor cabinets.

207 Helpful vote Comments

R***e

France

Verified Purchase

5 .0

2025-05-24

1550nm signal is rock solid here.

117 Helpful vote Comments

L***a

Denmark

Verified Purchase

5 .0

2025-03-08

This 1550nm optical module hit the 150km mark easily in our field test. O_o

95 Helpful vote Comments

M***l

Belgium

Verified Purchase

5 .0

2025-03-07

DOM works perfectly in our router. :D

51 Helpful vote Comments

P***n

Germany

Verified Purchase

5 .0

2025-01-15

Works flawlessly with my home Gigabit NAS setup using standard Duplex LC cables.

74 Helpful vote Comments

E***z

Philippines

Verified Purchase

5 .0

2024-10-12

SFF-8472 compliance is spot on. Good Gigabit Ethernet module for long distance bridging.

82 Helpful vote Comments

J***r

Brazil

Verified Purchase

5 .0

2024-06-20

Received on-time and completely working product as expected.

91 Helpful vote Comments

J***r

Iran, Islamic Republic of

Verified Purchase

5 .0

2024-05-21

This order was shipped very quickly and arrived in excellent order without any issues.

54 Helpful vote Comments

S***i

France

Verified Purchase

5 .0

2024-05-17

Good experience--products were shipped right away--exactly what we needed.

78 Helpful vote Comments

S***n

Hungary

Verified Purchase

5 .0

2024-04-26

This is my go-to site for ordering high quality Sfp cage, especially customized ones. They always have the best prices and a great selection.

107 Helpful vote Comments

S***a

New Zealand

Verified Purchase

5 .0

2024-03-21

l-p.com has great prices, the seller was very friendly and knowledgeable. I would do business anywhere else.

126 Helpful vote Comments

N***e

Bangladesh

Verified Purchase

5 .0

2024-02-28

I purchased these 10/25/40G Transceiver Modules because they were less expensive than I found in other places, and order came Fast and quick. Thank You

20 Helpful vote Comments

S***n

United States

Verified Purchase

5 .0

2024-02-13

The communication about the order was wonderful.

68 Helpful vote Comments

S***n

Japan

Verified Purchase

5 .0

2024-02-08

The Optical Transceiver Modules we received has exceeded our expectation. So far I am very pleased with the company.

69 Helpful vote Comments

Q***e

Lithuania

Verified Purchase

5 .0

2024-01-28

The shipping is Fast. I received the products within 10 days, amazing speed! The products were well packaged and worked fine during the past weeks. Glad to find LINK-PP, such a great website. Will definitly come back.

69 Helpful vote Comments

R***m

Belarus

Verified Purchase

5 .0

2023-12-28

Been buying here a long time. Always come here for the best deal of 10/25/40G Transceiver Modules.

113 Helpful vote Comments

S***l

Italy

Verified Purchase

5 .0

2023-12-26

Really Fast service, customer service contacted our office after order was placed to verify correct product was order, then called again to confirm that ethernet port functioning properly.

39 Helpful vote Comments

R***h

United States

Verified Purchase

5 .0

2023-11-07

Good seller. Got it Fast. Would recommend to others.

59 Helpful vote Comments

J***n

United States

Verified Purchase

5 .0