Cisco GLC-LH-SM Compatible 1.25G SFP 1310NM 10KM

1.25G SFP LX 1310nm 10KM LC Optical Transceiver

Product Model:
ESP3112-10D
Data Rate:
1.25G
Wavelength:
1310nm
Distance:
10KM
Connector:
LC
Fiber Type:
SM
DDM:
YES
Product Origin:
China
Shipping Port:
ShenZhen/HK

Product Detail

1.25G SFP LX 1310nm 10KM LC optical transceiver is a high-performance module engineered for long-haul single-mode fiber optic communication.

Operating at a 1310nm wavelength, this compact, hot-pluggable transceiver supports data rates up to 1.25 Gbps, making it an ideal solution for Gigabit Ethernet and Fibre Channel networks. Its primary distinction is an extended transmission capability, reliably reaching distances of up to 10 kilometers over standard 9/125µm single-mode fiber.

Compliant with SFP MSA standards and featuring a duplex LC interface, it ensures broad equipment compatibility and easy integration. This module provides a reliable and cost-effective solution for connecting network infrastructure across buildings or throughout expansive campuses.

Key Features

Data-rate of 1.25Gbps operation
1310nm FP laser and PIN photo detector for 10KM transmission
Compliant with SFP MSA and SFF-8472 with duplex LC 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: Standard: 0 to +70°C、Industrial: -40 to +85°C


SFP LX 10KM	SFP EX 40KM	SFP ZX 80KM	SFP ZX 120KM	SFP ZX 200KM
1.25G	1.25G	1.25G	1.25G	1.25G
10KM	40KM	80KM	120KM	200KM
1310nm	1310nm	1550nm	1550nm	1550nm
LC	LC	LC	LC	LC
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

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).