1.25G BiDi SFP Tx1310/Rx1550nm 20KM SC Optical Transceiver

Product Model:
EB35(53)12-20D(I)-S
Data Rate:
1.25G
Wavelength:
TX1310/RX1550NM
Distance:
20KM
Connector:
SC
Fiber Type:
SM
DDM:
Yes
Product Origin:
China
Shipping Port:
Shenzhen

Product Detail

1.25G BiDi SFP Tx1310/Rx1550nm 20KM SC Optical Transceiver is a high-performance single-fiber bidirectional module designed for medium-to-long-haul communication with specific physical interface requirements.

It transmits data at 1310nm and receives at 1550nm over a single strand of single-mode fiber, utilizing technology to enable full-duplex 1.25Gbps data transmission while effectively doubling fiber capacity.

This module achieves an extended transmission distance of up to 20 kilometers, making it suitable for various applications including metropolitan area networks and enterprise network expansions. Featuring a robust SC simplex connector interface, it provides a secure and stable connection preferred in many telecommunications and industrial environments. The hot-pluggable SFP form factor ensures easy deployment and compatibility with standard network equipment, offering network operators a reliable and cost-efficient solution for maximizing existing fiber infrastructure in SC-based network environments.

Key Features

Dual data-rate of 1.25Gbps/1.063Gbps operation
1310nm FP laser and PIN photodetector for 20KM transmission
Compliant with SFP MSA and SFF-8472 with simplex SC receptacle
Digital Diagnostic Monitoring: Internal Calibration or External Calibration
Compatible with SONET OC-24-LR-1
Compatible with RoHS  +3.3V single power supply
Operating case temperature range: 0 °C to +70 °C (Commercial) -40 °C to +85 °C (Industrial)


SFP BIDI 10KM LC	SFP BIDI 80KM LC	SFP BIDI 160KM LC	SFP BIDI 40KM SC	SFP BIDI 80KM SC
1.25G	1.25G	1.25G	1.25G	1.25G
10KM	80KM	160KM	40KM	80KM
1310nm/1550nm	1490nm/1550nm	1490nm/1550nm	1310nm/1550nm	1490nm/1550nm
LC	LC	LC	SC	SC
SM	SM	SM	SM	SM
DDM	DDM	DDM	DDM	DDM
COM: 0°C ~70°C EXT: -20°C ~85°C IND: -40°C ~85°C	COM: 0°C ~70°C EXT: -20°C ~85°C IND: -40°C ~85°C	COM: 0°C ~70°C EXT: -20°C ~85°C IND: -40°C ~85°C	COM: 0°C ~70°C EXT: -20°C ~85°C IND: -40°C ~85°C	COM: 0°C ~70°C EXT: -20°C ~85°C IND: -40°C ~85°C

FAQ:

Q1: What is a 1.25G SFP transceiver?‌

A1: 1.25G SFP (Small Form-factor Pluggable) is a compact, hot-swappable optic module supporting 1.25Gbps speeds for fiber or copper networks, commonly used in Gigabit Ethernet and Fiber Channel applications.

Q2: What are the typical applications of 1.25G SFP?‌
A2: Gigabit Ethernet (1000BASE-SX/LX/ZX)‌
Fiber Channel (1G/2G/4G)‌
SDH/SONET networks‌

Q3: What is the maximum distance for 1.25G SFP LX?‌
A3: The ‌1000BASE-LX‌ variant supports up to ‌10km‌ over single-mode fiber (SMF), while ‌1000BASE-SX‌ reaches ‌550m‌ over multimode fiber (MMF).

Q4: What wavelengths do 1.25G SFP modules use?‌
A4: SX‌: 850nm (MMF); LX/ZX‌: 1310nm/1550nm (SMF)

Q5: How does a BIDI SFP differ from a standard SFP?‌
A5: Standard SFPs require ‌two fibers‌ (one for TX, one for RX), while BIDI SFPs use ‌one fiber‌ with wavelength-division duplexing (WDM).

Q6: How far can a 1.25G SFP ZX module transmit data?‌
A6: The ‌ZX variant‌ supports extended distances up to ‌80km over single-mode fiber‌, ideal for long-haul applications like telecom backbones.

Q7: Are 1.25G SFP modules compatible with industrial temperature ranges?‌
A7: Yes, many industrial-grade modules operate in ‌extreme temperatures from -40°C to 85°C‌, ensuring reliability in harsh environments like outdoor networks.

Q8: What is the role of Digital Diagnostics Monitoring (DDM/DOM) in 1.25G SFP?‌
A8: DDM/DOM provides real-time tracking of parameters like temperature and optical power, enabling proactive maintenance and fault detection for network stability.

Q9: Can 1.25G SFP modules connect to CWDM or DWDM systems?‌
A9: Yes, specialized ‌CWDM and DWDM variants‌ exist for wavelength division multiplexing, allowing efficient bandwidth usage in metro or data center networks.

Q10: Why choose BIDI over standard SFP for FTTH?‌
A10: BIDI SFPs ‌halve fiber usage‌, reducing infrastructure costs in passive optical networks (PON).