What specific module model must be deployed at the opposite end of the fiber link?

You must use a matching 1270nm-TX/1330nm-RX transceiver at the remote site so that the transmit and receive optical channels cross correctly.

Why is it critical to use single-mode fiber instead of multi-mode fiber?

Multi-mode core diameters cause severe modal dispersion at 40km, whereas single-mode fiber guarantees the signal integrity needed for long-haul laser transmission.

What parameters can I track via the DOM interface?

The DOM feature reads internal telemetry, specifically monitoring internal module temperature, supply voltage, laser bias current, TX power, and RX power.

Does this BiDi technology introduce transmission latency compared to standard dual-fiber optical modules?

No, the internal WDM filters split wavelengths purely passively at light speed, meaning single-strand Bidirectional transmission introduces zero added latency.

Are these 10G BiDi SFP+modules hot-pluggable inside an active data center distribution frames chassis?

Yes, the standard SFP+ mechanical structure allows safe, live hot-swapping without interrupting adjacent operational port links.

Does the DOM telemetry on this SFP+ transceiver provide real-time laser bias current and absolute RX power readings?

Absolutely, the built-in SFF-8472 digital optical monitoring outputs live diagnostics directly to your CLI or SNMP dashboard. This lets you monitor transceiver health, internal voltage, and dBm line degradation instantly.

Can I get a volume discount if our company buys a batch of 500 units for a campus network core project?

Absolutely. Please contact our corporate sales team directly to receive customized tiered volume pricing and bulk logistics discounts.

Do you test every individual module for bit error rate limits prior to leaving the assembly line?

Yes, 100% of our optical transceivers pass strict bit error rate and hardware compatibility loop testing before packaging.

What exact wavelength pairing do I need on the remote switch to link up with this LS-BL332710-40C module?

You need its exact complementary model, the LS-BL273310-40C, which transmits at 1270nm and receives at 1330nm. Matching a 1330nm-TX with another 1330nm-TX on a single strand will result in zero traffic synchronization.

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Cisco SFP-10G-BX40D Compatible LINK-PP 10G SFP+ BiDi 1330nm-TX/1270nm-RX 40km Simplex LC/UPC DOM SMF Optical Transceiver Module

Name: Cisco SFP-10G-BX40D Compatible LINK-PP 10G SFP+ BiDi 1330nm-TX/1270nm-RX 40km Simplex LC/UPC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 211263
Price: 18.92 USD
Availability: InStock
Rating: 5 (24 reviews)

# 211263

Product: Cisco SFP-10G-BX40D Compatible LINK-PP 10G SFP+ BiDi 1330nm-TX/1270nm-RX 40km Simplex LC/UPC DOM SMF Optical Transceiver Module
SKU: 211263
P/N: LS-BL332710-40C
Price: $ 22
Stock: 1032 in Stock
Sold: 1.1K
Product URL: https://www.l-p.com/products/477204.htm

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Compatible:: Cisco; LINK-PP; ADTRAN; Allied Telesis; Arista; Aruba; Broadcom; Brocade; Ciena; D-Link; DELL; Edgecore; Extreme; F5; FS; Fortinet; Generic; H3C; HW; Intel; Juniper; Mellanox; MikroTik; Netgear; Palo Alto; Planet; RAD; Ubiquiti

Compatible P/N:: SFP-10G-BXD | 10km; SFP-10G-BXD-I | 10km; SFP-10G-BXU | 10km; SFP-10G-BXU-I | 10km; SFP-10G-BX20D | 20km; SFP-10G-BX20D-I | 20km; SFP-10G-BX20U | 20km; SFP-10G-BX20U-I | 20km; SFP-10G-BX40D | 40km; SFP-10G-BX40D-I | 40km; SFP-10G-BX40U | 40km; SFP-10G-BX40U-I | 40km; SFP-10G-BX60D | 60km; SFP-10G-BX60D-I | 60km; SFP-10G-BX60U | 60km; SFP-10G-BX60U-I | 60km; SFP-10G-BX80D-I | 80km; SFP-10G-BX80U | 80km; SFP-10G-BX80U-I | 80km; SFP-10G54-BX80 | 80km; SFP-10G-BX100U | 100km; SFP-10G54-BX100 | 100km

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Cisco SFP-10G-BX40D Compatible LINK-PP 10G SFP+ Specifications

The Cisco SFP-10G-BX40D Compatible LINK-PP module is a 10G BiDi SFP+ optical transceiver designed to double network capacity by utilizing a single strand of single-mode fiber, featuring a 1330nm-TX/1270nm-RX wavelength split and an LC simplex interface with DOM support to achieve a reliable 40km transmission reach.

Cisco Part Number	SFP-10G-BX40D	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1330nm-TX/1270nm-RX	Max Cable Distance	40km
Connector	Simplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-1 to +5dBm	RX Power	-17 to +1dBm
Receiver Sensitivity	-15dBm	Receiver Overload	0.5dBm
Operating Temperature Range	0 to 70°C	Protocols	SFP+ MSA Compliant, CPRI, eCPRI

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Q: Are these 10G BiDi SFP+modules hot-pluggable inside an active data center distribution frames chassis? By P***n on 2026-04-01

A: Yes, the standard SFP+ mechanical structure allows safe, live hot-swapping without interrupting adjacent operational port links. By admin on 2026-04-02
Q: Does the DOM telemetry on this SFP+ transceiver provide real-time laser bias current and absolute RX power readings? By S***z on 2026-02-19

A: Absolutely, the built-in SFF-8472 digital optical monitoring outputs live diagnostics directly to your CLI or SNMP dashboard. This lets you monitor transceiver health, internal voltage, and dBm line degradation instantly. By admin on 2026-02-20
Q: Can I get a volume discount if our company buys a batch of 500 units for a campus network core project? By T***n on 2026-01-29

A: Absolutely. Please contact our corporate sales team directly to receive customized tiered volume pricing and bulk logistics discounts. By admin on 2026-01-30
Q: Do you test every individual module for bit error rate limits prior to leaving the assembly line? By R***s on 2025-11-14

A: Yes, 100% of our optical transceivers pass strict bit error rate and hardware compatibility loop testing before packaging. By admin on 2025-11-15
Q: What exact wavelength pairing do I need on the remote switch to link up with this LS-BL332710-40C module? By M***n on 2025-09-08

A: You need its exact complementary model, the LS-BL273310-40C, which transmits at 1270nm and receives at 1330nm. Matching a 1330nm-TX with another 1330nm-TX on a single strand will result in zero traffic synchronization. By admin on 2025-09-09

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K***r

Austria

Verified Purchase

5 .0

2026-05-27

We deployed a dozen of these 10G SFP+ BiDi 40km transceivers to connect our main office block to the remote warehouse over single-mode fiber. The 1330nm-TX and 1270nm-RX setup on a single strand LC port is awesome because it saved us the cost of leasing a second fiber line. Link has been solid for a month straight without a single drop. Highly recommend LINK-PP for cost-effective enterprise upgrades!

58 Helpful vote Comments

N***y

Russian Federation

Verified Purchase

5 .0

2026-04-27

Needed a fast 40km link budget fix for an unexpected fiber span expansion. The LS-BL332710-40C 10G BiDi SFP+ module worked perfectly out of the box with our current fiber setup. The built-in DDM standard telemetry reads precisely, providing stable TX/RX power fields on our monitoring dashboard. Perfect match for network engineers who need reliable single-strand solutions.

48 Helpful vote Comments

Q***y

Slovakia

Verified Purchase

5 .0

2026-02-06

Tested the 40km link capability over an actual 35km single-mode fiber line with an inline optical attenuator. The receiver sensitivity stayed well within limits, and the bit error rate test came back completely clean. DDM diagnostics mapped accurately inside our switches without any custom terminal commands. Great product.

47 Helpful vote Comments

H***e

Sweden

Verified Purchase

5 .0

2025-12-29

Best price on 10G single-strand LC optics transceiver, saved us miles of fiber infrastructure on campus layout!

19 Helpful vote Comments

N***y

Ukraine

Verified Purchase

5 .0

2025-11-03

LINK-PP transceivers are highly reliable, outperforming expensive OEM modules in our enterprise cores.

28 Helpful vote Comments

L***e

Greece

Verified Purchase

5 .0

2025-10-11

Using the LS-BL332710-40C for residential backhaul circuits. The digital optical monitoring feature is crucial for us because it lets our NOC track transceiver temperature and laser RX power in real-time. Completely matches SFF-8472 multi-source agreement specifications. Will definitely order another bulk lot for the next phase deployment.

39 Helpful vote Comments

J***e

Japan

Verified Purchase

4 .0

2025-09-14

Good optical performance from the LS-BL332710-40C module. It is fully backwards compatible with standard SFP+ slots and runs cleanly over our 30km single strand LC port run. My only minor complaint is that the product labels are quite small and a bit hard to read inside a dark server cabinet. I had to use a flashlight to verify the 1330nm-TX / 1270nm-RX wavelength mark. Performance-wise, it is flawless.

23 Helpful vote Comments

M***f

Turkey

Verified Purchase

5 .0

2025-08-04

The installation phase went smoothly. Each module features a smooth wire bale latch that locks into standard SFP+ slots securely and ejects cleanly without putting stress on the internal ports. The Simplex LC/UPC connector surface features high-quality polish, resulting in excellent insertion loss characteristics across our entire indoor datacenter distribution network. The transceiver’s 1330nm-TX / 1270nm-RX optical structure allowed us to double our interconnect density without needing to pull new single-mode fiber cabling through our congested under-floor tray pathways. It is an exceptionally stable, industrial-grade engineering solution that delivers top-tier performance. (•‿•)

113 Helpful vote Comments

Q***s

Romania

Verified Purchase

5 .0

2025-07-31

Our enterprise network core utilizes these SFP+ 1330nm-TX 1270nm-RX modules for intermediate distribution frame link aggregation. They comply fully with SFF-8431 physical layer specs, keeping lower power consumption, which is perfect for maintaining low thermal footprints in our dense chassis. Will purchase more soon!

78 Helpful vote Comments

O***y

Czech Republic

Verified Purchase

5 .0

2025-05-29

Excellent 10G single-strand LC optics. We are using them in our indoor datacenter patch panels to interface with high-density aggregation switches. The latches are sturdy and click securely into the ports, unlike other cheap modules where the wire bale breaks easily. Very satisfied with the technical support from LINK-PP. Bourreau du travail!

103 Helpful vote Comments

S***i

India

Verified Purchase

5 .0

2024-02-23

The order shipped out and delivered on time.

68 Helpful vote Comments

D***s

Finland

Verified Purchase

5 .0

2024-02-20

They have always been quick to reply to questions and help me with customized orders

70 Helpful vote Comments

E***n

Sweden

Verified Purchase

5 .0

2024-01-16

Best prices easy ordering Fast shipping what else could you possibly ask for

31 Helpful vote Comments

J***h

Denmark

Verified Purchase

5 .0

2023-12-28

Link-pp is very professional and strive to meet my needs at any time!

70 Helpful vote Comments

J***n

United States

Verified Purchase

5 .0

2023-11-23

Easy to place orders and reliable. I have used them to buy fiber products for many years.

81 Helpful vote Comments

X***a

Mexico

Verified Purchase

5 .0

2023-09-25

Works perfectly with no issues

29 Helpful vote Comments

Y***a

India

Verified Purchase

5 .0

2023-05-22

Very efficient. No hassles. Delivered on time.

77 Helpful vote Comments

N***e

Canada

Verified Purchase

5 .0

2023-04-02

This company is spot on, all the time they are Fast and accurate.

19 Helpful vote Comments

N***o

Libyan Arab Jamahiriya

Verified Purchase

5 .0

2023-03-18

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

26 Helpful vote Comments

M***z

Japan

Verified Purchase

5 .0

2023-02-20

Not the best pricing on the web, but they had the availability I needed and shipped quickly.

95 Helpful vote Comments

D***y

United States

Verified Purchase

5 .0

2023-02-14

Always a nice experience shopping

62 Helpful vote Comments

I***e

Finland

Verified Purchase

5 .0

2022-11-30

I interacted with their online chat and asked many question to ensure I can get the right one. They helped me pick the perfect module for me while weighing several options. I got the product I wanted and additional knowhow.

84 Helpful vote Comments

E***z

Bangladesh

Verified Purchase

5 .0

2022-10-13

Good selection of goods. Outstanding service and support!

69 Helpful vote Comments

A***n

Italy

Verified Purchase

5 .0