1.25Gbps Fiber Optical Transceiver 1000BASE-EX SFP 1310nm 40km DOM Duplex LC SMF

Basic Information
Place of Origin: Shenzhen, China
Brand Name: GIGAOPTO
Certification: CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Model Number: GTS-L1312-40DI
Minimum Order Quantity: 1 pcs
Price: Negotiable
Packaging Details: Single Package, 10 or 20pcs per Tray, 30 or 50 or 100pcs per box, 400 or 600pcs per carton
Delivery Time: 1-5 working days
Payment Terms: T/T, Western Union
Supply Ability: 100,000pcs / month
Detail Information
Product Name: 1000BASE-EX SFP Form Type: SFP
Data Rate(Gbps): Data Rate(Gbps) Max Distance: 40km (24.8 Mi.)
Optical Components: DFB 1310nm DOM Support: Yes
Power Budget: 24dB Optical Receptacle Type: Duplex LC
Keywords: Industrial 1.25G SFP 40km Transceiver, SFP 1310nm 40km Fiber Module
High Light:

1.25Gbps Fiber Optical Transceiver


Duplex LC Fiber Optical Transceiver


1000BASE-EX SFP 1310nm 40km

Product Description

Cisco Compatible 1000BASE-EX Industrial SFP Transceiver Module 1.25Gbps 1310nm 40km DOM Duplex LC SMF





The GIGAOPTO's GTS-L1312-40DI SFP transceiver supports dual data-rate of 1.25Gbps/1.0625Gbps and 40km transmission distance over LC duplex SMF fiber. Featuring low power consumption, this 1000BASE-EX SFP industrial optic transceiver is a small form factor pluggable (SFP) transceiver specified for hardened industrial 1000BASE-EX Gigabit Ethernet and 1G Fiber Channel application in harsh environments.


The SFP transceiver consists of the below sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1310nm DFB laser and the PIN photo-detector. The SFP transceiver module is a Class 1 laser product that complies with FDA/CDRH and IEC-60825 standards.


The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA.



  • Operating data rate up to 1.25Gbps
  • Excellent ESD protection
  • Industrial operating temperature range: -40°C~85°C (-40 to 185°F)
  • RoHS Compliant and lead free
  • Single 3.3V power supply and TTL logic interface
  • Hot-pluggable SFP footprint duplex LC connector Interface
  • Built-in digital diagnostic functions, including optical power monitoring
  • Low power dissipation
  • 40km with 9/125 µm SMF
  • 1310nm DFB transmitter
  • International Class 1 laser safety certified
  • INF-8074 and SFF-8472 compliance


  • Industrial Ethernet Routers
  • Industrial Ethernet Media Converters
  • Industrial Ethernet Switches
  • Other Industrial Ethernet Connectivity Over Fiber



Compatible Brand CISCO Compatible Part Number GLC-EX-SMD
Product Packaging SFP Data Link 1000Mbps
Device Interface LC duplex connector Link Length 40km (24.9 miles)
DOM YES Cable Type SMF
Power Budget 24dB Ambient Temperature


-40 to 85°C (-40 to 185°F)

Wavelength 1310nm Power Supply Voltage 3.3V
Power Consumption <1.0W Icc 300mA
Laser Type DFB 1310nm Photo-detector PIN
Transmitter Output Power -5 ~ 0dBm Receiver Sensitivity < -24dBm
Extinction Ratio >9dB Saturation >-3dBm
Protocols SFF-8472 MSA Compliant, IEEE 802.3ah-2004


Notice: When the long reach transceiver is used in short distance transmission, please matched with appropriate attenuator

according to the table.

Distance ≤10km ≤20km
Attenuator 10dB 5dB



Ordering Information


P/N Description Speed Wavelength Reach Interface Temp.
GTS-T0012-10I-A 1000BASE-T SFP Copper 1.25Gb/s / 100m RJ-45 -40~85℃
GTS-L0812-02DI 1000BASE-SX SFP 1.25Gb/s 850nm 550m@OM2 Dual LC -40~85℃
GTS-L1312-10DI 1000BASE-LX SFP 1.25Gb/s 1310nm 10km Dual LC -40~85℃
GTS-L1312-40DI 1000BASE-EX40 SFP 1.25Gb/s 1310nm 40km Dual LC -40~85℃
GTS-L1512-80DI 1000BASE-ZX SFP 1.25Gb/s 1550nm 80km Dual LC -40~85℃


Contact Details

WhatsApp : +8615989585901