How does this BiDi SFP module handle signal isolation to prevent internal 1330nm/1270nm crosstalk?

The transceiver incorporates high-isolation WDM filters. This optical design ensures that the strong local 1330nm transmit signal does not bleed into and overpower the weak incoming 1270nm receive signal over the same fiber.

Can the GP-SFP-10GBX-D-20-I operate securely through optical patch panels and fiber splices?

Yes, provided the total optical budget of the 20km link is not exceeded. Every patch connection or mechanical splice introduces insertion loss, which must be factored into the overall link budget calculation.

How does the simplex LC/UPC interface impact optical return loss (ORL)?

The ultra-physical contact (UPC) polish minimizes back-reflections to ensure high signal-to-noise ratios, which is critical for error-free 10Gbps transmission over 20km.

Can the GP-SFP-10GBX-D-20-I module operate in harsh industrial environments?

Yes, the "I" suffix in the part number indicates an industrial-grade operating temperature range, allowing it to function reliably in harsh, wide-temperature environments.

Is this module physically compatible with high-density server network interface cards?

Yes, the module dimensions follow standard multi-source agreement specifications perfectly. It fits tightly into any standard SFP+ hardware cage without overlapping adjacent ports.

I accidentally bought two of these LS-BL332710-20I modules. Can they talk to each other directly?

No, BiDi modules require opposing wavelengths. You must pair this 1330nm-TX/1270nm-RX unit with its 1270nm-TX/1330nm-RX counterpart at the other end.

Can I pull live DDM stats from this module into third-party monitoring tools like Zabbix?

Yes, as long as your switch supports SNMP polling for SFF-8472 diagnostics, our module will stream real-time optical telemetry flawlessly.

Can I run this single-mode module over a short 10-meter multi-mode OM3 cable just for testing in the lab?

No, this is designed strictly for 9/125µm single-mode fiber (SMF). Multi-mode fiber will cause severe attenuation and won't link up.

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DELL GP-SFP-10GBX-D-20-I Compatible LINK-PP 10G SFP+ BiDi 1330nm-TX/1270nm-RX 20km Simplex LC/UPC DOM SMF Optical Transceiver Module (Industrial)

Name: DELL GP-SFP-10GBX-D-20-I Compatible LINK-PP 10G SFP+ BiDi 1330nm-TX/1270nm-RX 20km Simplex LC/UPC DOM SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 211304
Price: 18.49 USD
Availability: InStock
Rating: 4.9 (20 reviews)

# 211304

Product: DELL GP-SFP-10GBX-D-20-I Compatible LINK-PP 10G SFP+ BiDi 1330nm-TX/1270nm-RX 20km Simplex LC/UPC DOM SMF Optical Transceiver Module (Industrial)
SKU: 211304
P/N: LS-BL332710-20I
Price: $ 21.5
Stock: 418 in Stock
Sold: 2.3K
Product URL: https://www.l-p.com/products/477197.htm

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

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

For Order Over $5000 Get $100.00 Off , Code: Linkpp100

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Manufacture: LINK-PP

P/N: LS-BL332710-20I

Compatible:: Cisco; LINK-PP; Arista; Broadcom; Brocade; Ciena; D-Link; DELL; Extreme; FS; Fortinet; Generic; HW; Juniper

Compatible P/N:: GP-SFP-10GBX-D-10 | 10km; GP-SFP-10GBX-D-10-I | 10km; GP-SFP-10GBX-U-10 | 10km; GP-SFP-10GBX-U-10-I | 10km; GP-SFP-10GBX-D-20 | 20km; GP-SFP-10GBX-D-20-I | 20km; GP-SFP-10GBX-U-20 | 20km; GP-SFP-10GBX-U-20-I | 20km; GP-SFP-10GBX-D-40 | 40km; GP-SFP-10GBX-D-40-I | 40km; GP-SFP-10GBX-U-40 | 40km; GP-SFP-10GBX-U-40-I | 40km; GP-SFP-10GBX-D-60 | 60km; GP-SFP-10GBX-D-60-I | 60km; GP-SFP-10GBX-U-60 | 60km; GP-SFP-10GBX-U-60-I | 60km; GP-SFP-10GBX-D-80 | 80km; GP-SFP-10GBX-D-80-I | 80km; GP-SFP-10GBX-U-80 | 80km; GP-SFP-10GBX-U-80-I | 80km; GP-SFP-10GBX-D-100 | 100km; GP-SFP-10GBX-U-100 | 100km

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DELL GP-SFP-10GBX-D-20-I Compatible LINK-PP 10G SFP+ Specifications

The DELL GP-SFP-10GBX-D-20-I Compatible LINK-PP module is a single-channel, bidirectional (BiDi) 10G SFP+ optical transceiver module that enables simultaneous data transmission and reception over a single strand of single-mode fiber, operating at a wavelength pair of 1330nm-TX/1270nm-RX to support link lengths of up to 20km.

DELL Part Number	GP-SFP-10GBX-D-20-I	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1330nm-TX/1270nm-RX	Max Cable Distance	20km
Connector	Simplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-6.5 to +2dBm	RX Power	-17 to +1dBm
Receiver Sensitivity	-14.4dBm	Receiver Overload	0.5dBm
Operating Temperature Range	-40 to 85°C	Protocols	SFP+ MSA Compliant, CPRI, eCPRI

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Q: Is this module physically compatible with high-density server network interface cards? By R***z on 2026-05-12

A: Yes, the module dimensions follow standard multi-source agreement specifications perfectly. It fits tightly into any standard SFP+ hardware cage without overlapping adjacent ports. By admin on 2026-05-13
Q: I accidentally bought two of these LS-BL332710-20I modules. Can they talk to each other directly? By J***h on 2026-03-05

A: No, BiDi modules require opposing wavelengths. You must pair this 1330nm-TX/1270nm-RX unit with its 1270nm-TX/1330nm-RX counterpart at the other end. By admin on 2026-03-06
Q: Can I pull live DDM stats from this module into third-party monitoring tools like Zabbix? By E***s on 2025-12-18

A: Yes, as long as your switch supports SNMP polling for SFF-8472 diagnostics, our module will stream real-time optical telemetry flawlessly. By admin on 2025-12-19
Q: Can I run this single-mode module over a short 10-meter multi-mode OM3 cable just for testing in the lab? By B***a on 2025-10-22

A: No, this is designed strictly for 9/125µm single-mode fiber (SMF). Multi-mode fiber will cause severe attenuation and won't link up. By admin on 2025-10-23

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B***y

United States

Verified Purchase

4 .0

2026-05-14

Does exactly what it says on the spec sheet. We have about 40 of these deployed across various regional outdoor node cabinets for municipal CCTV backhaul. The industrial wide temperature range handles the summer heatwaves easily. Shipping took a few extra days to arrive in Ohio, but the performance per dollar is hard to beat.

11 Helpful vote Comments

G***y

Italy

Verified Purchase

5 .0

2026-05-01

Perfect option for local network installers. We use these for medium- and long-range multi-building links up to 20km. The simplex LC mechanism makes running neat patch fields simple. Excellent DOM functionality allows us to troubleshoot attenuation issues directly from the CLI dashboard. Very satisfied customer!

67 Helpful vote Comments

E***s

Canada

Verified Purchase

5 .0

2026-04-03

Survives extreme weather in our outdoor wireless tower cabinets! We manage rural LTE and wireless microcell sites across Canada where the winter temperatures drop way below freezing. Standard commercial-grade optics always drift in wavelength and drop the connection when it gets too cold, but these industrial-grade (-40°C to 85°C) modules haven't dropped a single packet in three months. The link holds a rock-solid 10Gbps line rate even when the outdoor cabinet gets baked by direct sunlight in the summer. It has saved our field tech team from making tons of expensive emergency driving trips out to remote sites just to reboot stuck modules.

92 Helpful vote Comments

H***r

Netherlands

Verified Purchase

5 .0

2026-03-25

Popped it into the switch and it came up right away. Solid 10G BiDi module.

21 Helpful vote Comments

A***f

Portugal

Verified Purchase

5 .0

2026-03-11

Perfect match for 4K/8K smart city CCTV surveillance networks. We deployed these 20km BiDi transceivers across a municipal network that feeds high-resolution traffic security cameras back to a central monitoring node. Since municipal fiber allocation is strictly limited, doing bidirectional transmission over a single strand was the only way to make this project work under budget. The internal DDM tool gives us highly accurate real-time data on voltage and laser temperature, which is essential for our preventative maintenance scheduling. The signal integrity is super clean, meaning our video streams don't stutter or freeze even during peak data hours.

89 Helpful vote Comments

F***l

Canada

Verified Purchase

5 .0

2026-02-14

The industrial temperature rating was the main reason we picked this 10G SFP+ BiDi optical module for the outdoor rack.

5 Helpful vote Comments

A***y

Germany

Verified Purchase

5 .0

2025-12-05

Solid industrial SFP+ modules, surviving the harsh German winter in outdoor cabinets perfectly.

15 Helpful vote Comments

D***k

Japan

Verified Purchase

5 .0

2025-11-17

Excellent industrial-grade optics transceiver for FTTH/FTTB cell tower backhaul deployments. The -40 to 85°C working temperature rating is mandatory for our unconditioned remote node enclosures here. Ran a loopback stress test over 18km of single-mode fiber, zero packet drops and optical power levels remained well within budget margins. Outstanding!

30 Helpful vote Comments

F***y

Australia

Verified Purchase

4 .0

2025-10-30

Very clean performance. Optical TX power levels are right where they are supposed to be. The simplex LC/UPC link holds stable through full 10Gbps line rate stress benchmarks. The shipping tracking link was delayed by the carrier for two days, but the parts arrived safely inside static-shielded packaging. Good purchase.

18 Helpful vote Comments

C***y

France

Verified Purchase

5 .0

2025-09-02

The best cost-saving alternative for regional ISP distribution nodes. As a network tech for a local broadband provider, I am always looking for ways to cut infrastructure costs without sacrificing network uptime. We installed nearly 60 of these LINK-PP 10G BiDi SFP+ transceivers into our street-side distribution hubs, and we have experienced zero hardware failures or infant mortality issues so far. The modules show excellent receiver sensitivity even over longer fiber paths that have multiple inline splices and older patch panels. For any buyer who needs to balance rugged industrial build quality with a reasonable volume price, this is the best deal online.

106 Helpful vote Comments

D***y

India

Verified Purchase

5 .0

2025-06-08

The factory-programmed compatibility on these 10G BiDi modules is incredible. Usually, getting third-party transceivers to negotiate nicely with picky telecom gear is a nightmare, but these connected at full duplex immediately. Low latency, low power consumption, and the DOM metrics match our high-end optical power meter tests.

58 Helpful vote Comments

G***y

Spain

Verified Purchase

5 .0

2025-05-12

Great reliability for linking factory automation floors over long distances. Our manufacturing plant has huge automated assembly floors with lots of heavy machinery that causes massive electromagnetic interference over traditional copper lines. We laid a 12km single-mode fiber line and used these LINK-PP industrial transceivers to connect the factory floor back to the main management office. The modules fit tightly into our hardened industrial edge switches, and the connection has been running smoothly without any lag or packet loss. It’s a very solid, ruggedly built product that can handle a lot of vibration and harsh factory environments easily.

134 Helpful vote Comments

B***y

United Kingdom

Verified Purchase

5 .0

2025-04-28

Using these for an enterprise wireless access point backhaul aggregation layer. They pop straight into our PoE+ distribution switches without a hitch. Getting authentic SFF-8472 compliant DOM readings at this low price point saves us tons of diagnostic time. Definitely keeping these on our standard bill of materials list.

42 Helpful vote Comments

z***n

United States

Verified Purchase

5 .0

2024-01-31

Easy ordering, quickly installed. No problems or concerns. Nicely priced compared to other retailers.

33 Helpful vote Comments

C***n

Japan

Verified Purchase

5 .0

2023-09-17

They do a great job. Customer service is very responsive. All of the 10/25/40G Transceiver Modules and Lan Transformer are tested.

68 Helpful vote Comments

I***i

United States

Verified Purchase

5 .0

2023-07-24

I can always find what I need at l-p.com. Prices are competitive and ordering is very easy.

85 Helpful vote Comments

B***n

United States

Verified Purchase

5 .0

2023-06-24

Good prices and quality of products. Dependable delivery

17 Helpful vote Comments

O***h

Belarus

Verified Purchase

5 .0

2023-05-31

Fast shipping from their warehouse in Singapore. Spare the import costs and save time for our locals. It gets more convenient, no longer worry about the high shipping costs.

31 Helpful vote Comments

S***z

Turkey

Verified Purchase

5 .0

2023-04-13

It was supposed to work before but because of the issue I faced, I made an assumption. I was wrong, but later tests I ran made me re-evaluate. Actually, your Optical Transceiver Module allows me to support alternatives that were not available previously. I do not know why it was not working initially. But I'm all to happy to have it all working now.

26 Helpful vote Comments

G***n

Philippines

Verified Purchase

5 .0

2023-01-22

Very satisfied, Got what I ordered very Fast and it exactly what I ordered.

64 Helpful vote Comments