What exact patch cord type do we need to connect two building main distribution frames 22km apart?

You will need a standard duplex LC single-mode fiber OS1 or OS2 patch cable operating at the 1310nm wavelength.

How are these optics packaged to prevent static or dust damage during international transit?

Each transceiver is individually sealed inside an anti-static ESD bag with protective rubber dust caps installed over the LC optical ferrules.

Can we check real-time optical power levels remotely while monitoring cell tower backhaul links?

Yes, the built-in Digital Optical Monitoring (DOM) lets you view live Tx/Rx power and temperature levels directly in your management software.

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Arista SFP-25G-ER Compatible LINK-PP 25G SFP28 1310nm 30km Duplex LC/UPC DOM SMF Optical Transceiver Module

Name: Arista SFP-25G-ER Compatible LINK-PP 25G SFP28 1310nm 30km Duplex LC/UPC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 218379
Price: 119.97 USD
Availability: InStock
Rating: 4.9 (15 reviews)

# 218379

Product: Arista SFP-25G-ER Compatible LINK-PP 25G SFP28 1310nm 30km Duplex LC/UPC DOM SMF Optical Transceiver Module
SKU: 218379
P/N: LS-SM3125-30C
Price: $ 139.5
Stock: 53 in Stock
Sold: 931
Product URL: https://www.l-p.com/products/494306.htm

For Order Over $1000 Get $15.00 Off , Code: Linkpp15

For Order Over $3000 Get $50.00 Off , Code: Linkpp50

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15 Reviews

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Manufacture: LINK-PP

P/N: LS-SM3125-30C

Compatible:: Cisco; LINK-PP; Arista; Brocade; FS; Generic; Mellanox

Compatible P/N:: SFP-25GLRL-31-I | 2km; SFP-25G-LR | 10km; SFP-25G-LR-I | 10km; SFP-25GELR-31-I | 20km; SFP-25G-ER | 30km; SFP-25G-ER-I | 30km; SFP-25G-ER40 | 40km; SFP-25G-ER40-I | 40km

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Arista SFP-25G-ER Compatible LINK-PP 25G SFP28 Specifications

SFP-25G-ER is a 25GBASE-ER SFP28 single-mode optical transceiver module that engineered for long-reach data transmission over duplex LC/UPC connections, delivering robust 25Gbps throughput at a 1310nm wavelength across distances up to 30km with integrated Digital Optical Monitoring support.

Arista Part Number	SFP-25G-ER	Vendor Name	LINK-PP
Form Factor	SFP28	Max Data Rate	25.78Gbps
Wavelength	1310nm	Max Cable Distance	30km
Connector	Duplex LC	Media	SMF
Transmitter Type	EML	Receiver Type	APD
Receiver Sensitivity	-19dBm	Operating Temperature range	0°C to +70°C
Protocols	MSA Compliant, CPRI, eCPRI	Warranty	5 Years

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Q: What exact patch cord type do we need to connect two building main distribution frames 22km apart? By L***t on 2026-02-10

A: You will need a standard duplex LC single-mode fiber OS1 or OS2 patch cable operating at the 1310nm wavelength. By admin on 2026-02-11
Q: How are these optics packaged to prevent static or dust damage during international transit? By O***e on 2025-08-08

A: Each transceiver is individually sealed inside an anti-static ESD bag with protective rubber dust caps installed over the LC optical ferrules. By admin on 2025-08-09
Q: Can we check real-time optical power levels remotely while monitoring cell tower backhaul links? By M***g on 2025-03-21

A: Yes, the built-in Digital Optical Monitoring (DOM) lets you view live Tx/Rx power and temperature levels directly in your management software. By admin on 2025-03-22

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B***k

Israel

Verified Purchase

5 .0

2026-05-02

Excellent high-performance alternative for 25km single-mode fiber links without breaking the network budget.

48 Helpful vote Comments

S***t

United States

Verified Purchase

5 .0

2026-04-15

Replaced our aging 10G LR modules with these 25G 1310nm 30km transceivers to boost bandwidth between remote network nodes. Zero compatibility hiccups on our layer-3 enterprise switches. Low power draw keeps overall rack thermal budgets happy. Very satisfied!

85 Helpful vote Comments

A***n

Malaysia

Verified Purchase

5 .0

2026-03-04

Needed a long-haul 25G SFP28 1310nm optic for a municipal fiber ring. LINK-PP sent pre-coded EEPROM for our enterprise switch platform. Latency is rock bottom and packet drops are non-existent during peak traffic hours. The duplex LC interface clicked cleanly into our patch panel. Excellent enterprise-grade performance for a fraction of list price!

97 Helpful vote Comments

A***n

Philippines

Verified Purchase

5 .0

2026-02-27

Upgraded our virtualized server cluster interconnects across two remote facilities. The 25G speed jump over standard 10G is night and day, and having 30km capability gives us plenty of optical power margin on older single-mode plant lines. DOM reports live junction temperatures clearly.

104 Helpful vote Comments

J***s

France

Verified Purchase

4 .0

2026-02-19

The 25G SFP28 modules connected our 23km single-mode fiber line instantly with clean DOM power readings. The only reason for 4 stars is that international customs held the shipment for three extra days to process paperwork. Everything arrived in good shape, but plan for extra buffer time on international shipping!

26 Helpful vote Comments

C***e

Russian Federation

Verified Purchase

5 .0

2026-01-09

Solid 1310nm 30km SFP28 module — DOM telemetry reads spot-on in our edge routing hardware.

75 Helpful vote Comments

M***z

India

Verified Purchase

5 .0

2025-12-11

Duplex LC connector locks in tight and DOM stats integrate seamlessly into our SNMP network monitoring tools.

103 Helpful vote Comments

C***n

United Kingdom

Verified Purchase

4 .0

2025-12-04

These 30km SFP28 modules operate perfectly without generating any port compatibility errors on our switches. The shipping carton was a bit flimsy though, so I would suggest using sturdier packaging for bulk orders.

35 Helpful vote Comments

K***s

New Zealand

Verified Purchase

5 .0

2025-11-22

Finding reliable 30km reach SFP28 optics under a commercial temperature rating usually costs a fortune from traditional OEM vendors. Tested the LS-SM3125-30C across our edge routers and aggregation switches. The link was established at full 25Gbps line rate. Really satisfied with the overall build quality and dust cap fittings.

115 Helpful vote Comments

E***n

Germany

Verified Purchase

5 .0

2025-09-06

We upgraded our high-performance computing cluster links from 10G to these 25G 1310nm SFP28 transceivers to support high-speed data sync across distant sites. Testing showed consistent full line-rate throughput with stable, ultra-low latency across the entire 25km single-mode line. The optics remained surprisingly cool, keeping internal DOM temperatures below 45°C inside dense switch line cards. The duplex LC polish aligns accurately with standard patch cords, ensuring a clean optical path. It’s a rock-solid piece of hardware for high-demand enterprise environments.

151 Helpful vote Comments

D***g

Viet Nam

Verified Purchase

5 .0

2025-08-14

We ordered 100 pieces for a rack rollout. LINK-PP custom pre-coded them for our mixed-vendor switch environment. Every module booted cleanly, and DDM values matched our optical power meter readings within ±0.2dB. Will definitely make LINK-PP our primary optical transceiver supplier.

59 Helpful vote Comments

M***s

Thailand

Verified Purchase

5 .0

2025-07-19

We deployed 100 of these LINK-PP 25G SFP28 30km modules across our core switch stack to bridge two facilities about 22km apart. The 1310nm laser output is steady and optical attenuation is well within margin over OS2 single-mode fiber. DOM monitoring gives accurate temperature and power readings directly in our switch OS CLI. Will definitely reorder for phase 2.

131 Helpful vote Comments

L***n

Ukraine

Verified Purchase

5 .0

2025-06-20

Zero port coding errors on our high-density top-of-rack switches—running super stable with ultra-low power consumption.

62 Helpful vote Comments

P***n

South Africa

Verified Purchase

5 .0

2025-06-11

We thoroughly benchmarked the LINK-PP LS-SM3125-30C transceiver over a 27km single-mode OS2 fiber line between two server rooms. The 1310nm optical output was very clean and stable, maintaining excellent signal strength with plenty of optical budget to spare. The built-in DOM features worked seamlessly, letting us track laser temperature, supply voltage, and Rx/Tx power levels in real time. After running a continuous 72-hour stress test at 25Gbps line rate, we registered zero frame loss or signal degradation. This is a top-tier option for high-bandwidth enterprise connectivity.

103 Helpful vote Comments

A***s

Mexico

Verified Purchase

5 .0

2025-04-28

We integrated two dozen LS-SM3125-30C transceivers into our new data center expansion to handle heavy inter-rack traffic. Operating over 19km of OS2 fiber, our received optical power remained well within safety margins with a generous 6dB cushion. The SFF-8472 digital diagnostic monitoring allows our automated software to poll accurate optical stats without manual intervention. Replacing our old, expensive OEM optics with these LINK-PP units cut our hardware upgrade costs drastically without sacrificing a single drop of network performance. A fantastic commercial-grade solution!

73 Helpful vote Comments