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In the field of fiber optic networking, identifying the right transceiver quickly is essential to maintain high performance and avoid installation errors. One key method of visual identification is the color of the transceiver’s pull tab, which corresponds to its ١٣. الطول الموجي. This article provides a professional guide on transceiver pull tab color codes by wavelength—spanning SFP, SFP+, CWDM, and BiDi modules—and introduces how ٤٠. LINK-PP standardizes color matching across its optical product lines.

🔍 Why Wavelength Matters in Optical Modules

Every optical transceiver operates at a specific ١٣. الطول الموجي, typically measured in nanometers (nm). Matching the correct wavelength with the right fiber type and application is essential to ensure:

سلامة الإشارة
المسافة النقلية
Compatibility with other equipment (like multiplexers in WDM systems)

1️⃣ Standard SFP Wavelengths and Pull Tab Colors

The most commonly used SFP optical modules operate at 850nm, 1310nm, 1490nm, and 1550nm. Their pull tab colors help quickly distinguish between module types and supported transmission distances.

١٣. الطول الموجي	١٠. التطبيق	Pull Tab Color
٣٣. ٨٥٠ نانومتر	Gigabit SX	Black
٣٤. ١٣١٠ نانومتر	LX/SMF / Fast Ethernet	Blue
1490nm	GPON / BiDi	Purple
٤. ١٥٥٠ نانومتر	Long Distance	Yellow
1550nm ≥ 80KM	Ultra Long Haul	أخضر

2️⃣ CWDM Transceiver Color Coding

٢٥. التعدد بالتقسيم الطولي الخشن (CWDM) modules use 18 different wavelengths between 1270nm and 1610nm, each with a unique pull ring color for easy identification.

١٣. الطول الموجي	Pull Ring Color	١٣. الطول الموجي	Pull Ring Color
1270nm	Gray	1470nm	Gray
1290nm	Gray	1490nm	Purple
٣٤. ١٣١٠ نانومتر	Gray	1510nm	Blue
1330nm	Purple	1530nm	أخضر
1350nm	Blue	٤. ١٥٥٠ نانومتر	Yellow
1370nm	أخضر	1570nm	برتقالي
1390nm	Yellow	1590nm	Red
1410nm	برتقالي	1610nm	Brown
1430nm	Red
1450nm	Brown

This color coding enables fast troubleshooting and port mapping in complex CWDM networks.

3️⃣ 10G Dual Fiber SFP+ Modules

10G dual-fiber optical modules typically use three key wavelengths, each with different transmission ranges and corresponding pull tab colors.

١٣. الطول الموجي	٥٢. المسافة	Pull Ring Color
٣٣. ٨٥٠ نانومتر	Short Reach	Black
٣٤. ١٣١٠ نانومتر	10–40 KM	Blue
1550nm (40 KM)	Medium Distance	Red
1550nm (80 KM)	Long Distance	White

4️⃣ 10G BiDi Modules (Single Fiber)

BiDi (Bidirectional) optical modules transmit and receive on a single fiber using different wavelengths for each direction.

Tx Wavelength	Pull Tab Color
1270nm	Black
1330nm	Blue
1490nm	Purple
٤. ١٥٥٠ نانومتر	Yellow

5️⃣ LINK-PP Transceiver Pull Tab Color Reference

٤٠. LINK-PP offers a full range of compatible SFP/SFP+ transceivers with strict adherence to industry-standard color coding. Below are commonly used modules and their pull tab colors:

SFP/SFP+ Dual-Fiber Modules

٤٩. نوع الوحدة	١٣. الطول الموجي	Pull Tab Color
SFP ZX	1550nm 80KM	أخضر
SFP+ ZR	1550nm 80KM	White
SFP EX	1550nm 40KM	Yellow
SFP+ ER	1550nm 40KM	Red
SFP LX, LHX	1310nm 20/40KM	Blue
١٥. SFP SX	850nm 550M	Black
100Mbps SMF	1310nm 10/20/40KM	Blue
100Mbps MMF	1310nm 2KM	Black

SFP/SFP+ BiDi Modules

Tx Wavelength	Pull Tab Color
1490nm	Purple
٤. ١٥٥٠ نانومتر	Yellow
٣٤. ١٣١٠ نانومتر	Blue
1330nm	Blue
1270nm	Black

✅ Why Choose LINK-PP?

With over 20 years of experience in optical communication, ٤٠. LINK-PP delivers high-quality transceivers with consistent labeling and color standards. Whether you need BiDi modules for metro access or CWDM for dense wavelength deployments, LINK-PP ensures compatibility, performance, and ease of identification.

🔗 Explore our full product catalog at ٢٠. www.l-p.com

١٢. الكلمات الدلالية