Is this 4G 1310nm 40km SFP module compatible with legacy Brocade SAN switches, Cisco MDS Fibre Channel switches, and multi-vendor industrial Ethernet switches?

Yes. The LS-SM314G-40I adheres strictly to the SFP Multi-Source Agreement (MSA), SFF-8472 diagnostic standards, and 4G Fibre Channel / CPRI protocols. LINK-PP provides customized EEPROM coding compatible with major OEM brands including Cisco, Brocade, Juniper, Alcatel-Lucent, Huawei, and Mikrotik. Digital Diagnostic Monitoring (DDM / DOM) is fully functional, reporting real-time optical power, supply voltage, laser bias current, and operating temperature to your switch CLI or network management system.

What is the main difference between this industrial grade LS-SM314G-40I transceiver and commercial grade 4G SFP modules when deployed in outdoor roadside enclosures or unconditioned utility shelters?

The LS-SM314G-40I is engineered specifically for harsh environments with an extended industrial operating temperature range from -40°C to +85°C (-40°F to 185°F), whereas commercial grade modules are rated for 0°C to 70°C. It utilizes industrial-grade DFB 1310nm lasers and ruggedized optical components designed to withstand extreme thermal cycling, humidity, and vibration in outdoor cabinets, utility substations, and wireless base station CPRI deployments.

Can we use this LINK-PP 4G SFP module for shorter distance fiber runs, such as 3km or 8km single mode fiber links, without risking optical receiver overload or requiring attenuators?

Yes, you can deploy the LS-SM314G-40I on shorter SMF links, but you should monitor real-time light levels using the built-in DOM feature. The optical receiver sensitivity threshold is -20dBm with a maximum overload limit around 0dBm, while the 1310nm DFB laser transmitter outputs between -5dBm and 0dBm. For fiber spans shorter than 5km, we recommend checking switch CLI DDM readings; if RX optical power approaches 0dBm, adding a 3dB to 5dB LC inline optical attenuator will protect the receiver photodiode long term.

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LINK-PP LS-SM314G-40I SFP 4G ファイバーチャネル 1310nm 40km DOM デュプレックス LC SMF 光トランシーバーモジュール（産業用）

Name: LS-SM314G-40I
Brand: LINK-PP
SKU: 183330
Price: 21.199 USD
Availability: InStock
Rating: 4.9 (18 reviews)

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製品: LINK-PP LS-SM314G-40I SFP 4G ファイバーチャネル 1310nm 40km DOM デュプレックス LC SMF 光トランシーバーモジュール（産業用）
SKU: 183330
P / N: LS-SM314G-40I
価格: $ 24.65
ステージ０: 420在庫あり
SOLD: 580
商品のURL: https://www.l-p.com/products/478312.htm

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: LINK-PP LS-SM314G-40I SFP 4G ファイバーチャネル 1310nm 40km DOM デュプレックス LC SMF 光トランシーバーモジュール（産業用）

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製造： LINK-PP

P / N： LS-SM314G-40I

互換性：: LINK-PP

互換性のあるP/N:: LS-SM314G-02C | 2km; LS-SM314G-02I | 2km; LS-SM314G-04C | 4km; LS-SM314G-10C | 10km; LS-SM314G-10I | 10km; LS-SM314G-40C | 40km; LS-SM314G-40I | 40km

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LINK-PP LS-SM314G-40I 4G SFPの仕様

その LINK-PP LS-SM314G-40I SFP is an industrial-grade transceiver designed for Fibre Channel applications, supporting data rates of up to 4.25Gbps over single-mode fiber (SMF) with transmission distances of up to 40km. Its 1310nm wavelength also helps ensure stable, high-performance optical connectivity over long-haul links.

LINK-PP 部品番号	LS-SM314G-40I	業者名	LINK-PP
フォームファクター	SFP	最大データレート	4.25Gbps
波長	1310nm	最大ケーブル距離	40km
ボンジョイント	デュプレックスLC	メディアの方	SMF
トランスミッタの種類	DFB	レシーバータイプ	PIN
レシーバ感度	<-17.5dBm	レシーバの過負荷	-1dBm
TXパワー	-2〜 + 4dBm	RXパワー	-20〜-1dBm
動作温度範囲	40℃に-85	プロトコル	MSA準拠

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Q: Is this 4G 1310nm 40km SFP module compatible with legacy Brocade SAN switches, Cisco MDS Fibre Channel switches, and multi-vendor industrial Ethernet switches? A***eによる on 2025-09-08

A: Yes. The LS-SM314G-40I adheres strictly to the SFP Multi-Source Agreement (MSA), SFF-8472 diagnostic standards, and 4G Fibre Channel / CPRI protocols. LINK-PP provides customized EEPROM coding compatible with major OEM brands including Cisco, Brocade, Juniper, Alcatel-Lucent, Huawei, and Mikrotik. Digital Diagnostic Monitoring (DDM / DOM) is fully functional, reporting real-time optical power, supply voltage, laser bias current, and operating temperature to your switch CLI or network management system. 管理者による on 2025-09-09
Q: What is the main difference between this industrial grade LS-SM314G-40I transceiver and commercial grade 4G SFP modules when deployed in outdoor roadside enclosures or unconditioned utility shelters? E***sによる on 2025-03-26

A: The LS-SM314G-40I is engineered specifically for harsh environments with an extended industrial operating temperature range from -40°C to +85°C (-40°F to 185°F), whereas commercial grade modules are rated for 0°C to 70°C. It utilizes industrial-grade DFB 1310nm lasers and ruggedized optical components designed to withstand extreme thermal cycling, humidity, and vibration in outdoor cabinets, utility substations, and wireless base station CPRI deployments. 管理者による on 2025-03-26
Q: これを使ってもいいですか？ LINK-PP 4G SFP module for shorter distance fiber runs, such as 3km or 8km single mode fiber links, without risking optical receiver overload or requiring attenuators? A***tによる on 2024-11-27

A: Yes, you can deploy the LS-SM314G-40I on shorter SMF links, but you should monitor real-time light levels using the built-in DOM feature. The optical receiver sensitivity threshold is -20dBm with a maximum overload limit around 0dBm, while the 1310nm DFB laser transmitter outputs between -5dBm and 0dBm. For fiber spans shorter than 5km, we recommend checking switch CLI DDM readings; if RX optical power approaches 0dBm, adding a 3dB to 5dB LC inline optical attenuator will protect the receiver photodiode long term. 管理者による on 2024-11-27

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A *** l

Republic of Korea

確認済みの購入

5.0

2026-06-22

Needed 4G Fibre Channel transceivers with 1310nm wavelength for base station CPRI links. LINK-PP modules reported DDM stats instantly on Brocade and Cisco switches :-D

87 役立つ投票コメント

N *** s

ベルギー

確認済みの購入

5.0

2026-05-19

Ordered 15 units for industrial Ethernet switch upgrades. MSA compliant spec made compatibility effortless across mixed vendor hardware. Will order again! :-)

25 役立つ投票コメント

C *** e

Brazil

確認済みの購入

5.0

2026-05-19

Upgraded our wireless CPRI fronthaul links using these LINK-PP 4G 1310nm 40km optical modules. The duplex LC connectors click securely into place and DFB transmitter output measured +1.5dBm on site. Zero packet drop during a 72-hour stress test. Excellent alternative to costly OEM brands ;)

4 役立つ投票コメント

B *** z

トルコ

確認済みの購入

5.0

2026-04-14

Deployed these LS-SM314G-40I transceivers inside unheated outdoor cabinets. Operating temperature drops below freezing at night, but light level and optical link remain completely steady.

38 役立つ投票コメント

L *** s

カンボジア

確認済みの購入

5.0

2026-02-28

Strict MSA compliance makes this industrial 4G SFP optical transceiver module a lifesaver for our multi-vendor fiber network. We tested 1310nm LC duplex connections up to 38km SMF distance without signal loss. Optical RX sensitivity remained stable at -18dBm.

65 役立つ投票コメント

K *** z

ポーランド

確認済みの購入

5.0

2025-12-24

The LS-SM314G-40I industrial optics perform flawlessly at full 4G speed over our 30km fiber loop. Only deducting one star because the shipping box was slightly crushed on arrival, though the internal anti-static packaging protected the transceivers.

96 役立つ投票コメント

Z *** l

米国

確認済みの購入

5.0

2025-11-05

プラグアンドプレイで、4.25Gbpsのフルスピードを実現！ ;)

11 役立つ投票コメント

Z *** n

Argentina

確認済みの購入

5.0

2025-10-08

Replaced expensive OEM modules with this LS-SM314G-40I for 4G FC SAN replication between remote sites. Syncs up instantly with zero bit errors.

99 役立つ投票コメント

として

ポーランド

確認済みの購入

5.0

2025-10-02

Solid industrial 4G SFP module. Flawless 40km link over SMF :)

33 役立つ投票コメント

A *** y

Indonesia

確認済みの購入

5.0

2025-05-28

Excellent industrial optics! =D

89 役立つ投票コメント

ミズ

フィンランド

確認済みの購入

5.0

2025-05-06

Tested compatibility on Brocade SAN switches and Alcatel-Lucent routers for 4G Fibre Channel replication. The LS-SM314G-40I modules were recognized immediately, reporting accurate laser temperature, voltage, and optical power via DOM. Datasheet specs are 100% accurate =D

3 役立つ投票コメント

P *** l

バングラデシュ

確認済みの購入

5.0

2024-12-28

Tested on Juniper and Mikrotik hardware for a long haul 35km LC duplex link. DOM reading shows rock solid optical RX power around -11dBm =)

36 役立つ投票コメント

N *** s

Malaysia

確認済みの購入

5.0

2024-11-13

Super fast dispatch and rugged industrial housing. The 1310nm DFB laser delivers strong optical power across our 40km single mode fiber cable run.

55 役立つ投票コメント

として

リトアニア

確認済みの購入

5.0

2024-10-10

We bought a batch of LS-SM314G-40I industrial SFP transceivers for a 32km single mode fiber link connecting rural monitoring substations. Receiver sensitivity stayed well within -20dBm spec, and DDM telemetry integrates seamlessly with our Zabbix NMS via SNMP. Outstanding stability under harsh weather conditions.

19 役立つ投票コメント

S *** r

ルーマニア

確認済みの購入

5.0

2024-08-16

完全に動作します。

65 役立つ投票コメント

C *** s

モロッコ

確認済みの購入

5.0

2024-08-15

Deployed 30 pieces in severe industrial environments ranging from -20℃ cold storage to +65℃ hot boiler plant cabinets. The DDM diagnostic feature is crucial for predictive maintenance, correctly reporting laser bias current and thermal metrics. Outstanding quality and prompt delivery.

50 役立つ投票コメント

A *** z

ブルネイ・ダルサラーム国

確認済みの購入

5.0

2024-04-11

Ideal 4G SFP transceivers for outdoor roadside enclosures. Industrial temperature range -40℃ to 85℃ gives us total peace of mind.

24 役立つ投票コメント

R *** z

Mexico

確認済みの購入

5.0

2024-02-04

Optical specs are spot on and DOM readings match our handheld optical power meter perfectly. Great 1310nm 40km transceivers, but delivery to our UK site took 2 days longer than scheduled.

57 役立つ投票コメント