1.25g Single Mode Dual Fibers SFP Optical Module LC20km

Usage: Computer
Type: Wireless
Support Network: Ethernet
Information content: Data
Certification: CE, ISO, RoHS
Condition: New
Customization:

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Basic Info.

Model NO.
TK-1324-3LCD20
Item Name
1.25g Single Mode Dual Fibers SFP Module 20km
Transmit Rate
1.25g
Transmit Distance
20km
Fiber Type
Dual Fiber
Interface Tyoe
LC, Sc or RJ45 Are Available
Single Power Supply
More Than 3.3V
Standard Temperature
0 -70
Wavelenth
1310nm
Warranty
2 Years
Transport Package
Pet Bag+Carton
Trademark
TAKFLY COMMUNICATION CO., LTD
Origin
China
Production Capacity
50000PCS/Week

Product Description

1.25G single mode dual fibers SFP Optical Module LC20KM

1.Feature:

1.Dual data-rate of 1.25Gbps/1.063Gbps operation;
2.1310nm FP laser and PIN photodetector for 20km transmission;
3.Compliant with SFP MSA and SFF-8472 with duplex LC receptacle;
4.Digital Diagnostic Monitoring;
5.Internal Calibration or External Calibration;
6.Compatible with SONET OC-24-LR-1;
7.Compatible with RoHS;
8.+3.3V single power supply;
9.Operating case temperature:
10.Standard:  0 to +70°C
11.Extended: -20 to +85°C
12.Industrial: -40 to +85°C

2.Applications:

1.Gigabit Ethernet;
2.Fiber Channel;
3.Switch to Switch interface;
4.Switched backplane applications;
5.Router/Server interface;
6.Other optical transmission systems;

3.Description:

The SFP transceivers are high performance, cost effective modules supporting dual data-rate of 1.25Gbps/1.0625Gbps and 20km transmission distance with SMF.

The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.

The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472.

4.Absolute Maximum Ratings:

Table 1 - Absolute Maximum Ratings:
ParameterSymbolMinMaxUnit
Supply VoltageVcc-0.54.5V
Storage TemperatureTs-40+85°C
Operating Humidity-585%

5.Recommended Operating Conditions:

Table 2 - Recommended Operating Conditions:
ParameterSymbolMinTypicalMaxUnit
Operating Case TemperatureStandardTc0 +70°C
-20+85
Industrial-40 +85°C
Power Supply VoltageVcc3.133.33.47V
Power Supply CurrentIcc  300mA
Data RateGigabit Ethernet  1.25 Gbps
Fiber Channel  1.063 

6.Optical and Electrical Characteristics:

DF -3124-L2x(D):  (FP and PIN, 1310nm, 20km Reach)
Table 3 - Optical and Electrical Characteristics
ParameterSymbolMinTypicalMaxUnitNotes
Transmitter
Centre Wavelengthλc126013101360nm 
Spectral Width (RMS)λ  4nm 
Average Output PowerPout-9 -3dBm1
Extinction RatioER9  dB 
Optical Rise/Fall Time (20%~80%)tr/tf  0.26ns 
Data Input Swing DifferentialVIN400 1800mV2
Input Differential ImpedanceZIN90100110Ω 
TX DisableDisable 2.0 VccV 
Enable 0 0.8V 
TX FaultFault 2.0 VccV 
Normal 0 0.8V 
Receiver
Centre Wavelengthλc1260 1580nm 
Receiver Sensitivity   -23dBm3
Receiver Overload 0  dBm3
LOS De-AssertLOSD  -24dBm 
LOS AssertLOSA-35  dBm 
LOS Hysteresis 1 4dB 
Data Output Swing DifferentialVout400 1800mV4
LOSHigh2.0 VccV 
Low  0.8V 

Notes:
1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 27-1 test pattern @1250Mbps, BER ≤1×10-12.
4. Internally AC-coupled.

7.Timing and Electrical:

Table 4 - Timing and Electrical:
ParameterSymbolMinTypicalMaxUnit
Tx Disable Negate Timet_on  1ms
Tx Disable Assert Timet_off  10µs
Time To Initialize, including Reset of Tx Faultt_init  300ms
Tx Fault Assert Timet_fault  100µs
Tx Disable To Resett_reset10  µs
LOS Assert Timet_loss_on  100µs
LOS De-assert Timet_loss_off  100µs
Serial ID Clock Ratef_serial_clock  400KHz
MOD_DEF (0:2)-HighVH2 VccV
MOD_DEF (0:2)-LowVL  0.8V

8.Diagnostics:

Table 5 - Diagnostics Specification:
ParameterRangeUnitAccuracyCalibration
Temperature0 to +70°C±3°CInternal / External
-40 to +85
Voltage3.0 to 3.6V±3%Internal / External
Bias Current0 to 100mA±10%Internal / External
TX Power-9 to -3dBm±3dBInternal / External
RX Power-23 to 0dBm±3dBInternal / External

9.Digital Diagnostic Memory Map:

The transceivers provide serial ID memory contents and diagnostic information about the present operating conditions by the 2-wire serial interface (SCL, SDA).

The diagnostic information with internal calibration or external calibration all are implemented, including received power monitoring, transmitted power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring.

10.Pin Descriptions:
 
PinSignal NameDescriptionPlug Seq.Notes
1VEETTransmitter Ground1 
2TX FAULTTransmitter Fault Indication3Note 1
3TX DISABLETransmitter Disable3Note 2
4MOD_DEF(2)SDA Serial Data Signal3Note 3
5MOD_DEF(1)SCL Serial Clock Signal3Note 3
6MOD_DEF(0)TTL Low3Note 3
7Rate SelectNot Connected3 
8LOSLoss of Signal3Note 4
9VEERReceiver ground1 
10VEERReceiver ground1 
11VEERReceiver ground1 
12RD-Inv. Received Data Out3Note 5
13RD+Received Data Out3Note 5
14VEERReceiver ground1 
15VCCRReceiver Power Supply2 
16VCCTTransmitter Power Supply2 
17VEETTransmitter Ground1 
18TD+Transmit Data In3Note 6
19TD-Inv. Transmit Data In3Note 6
20VEETTransmitter Ground1 

11.Mechanical Dimensions:



12.Ordering information:
 
Part NumberProduct Description
DF-3124-L2C1310nm, 1.25Gbps, 20km,   0ºC ~ +70ºC
DF-3124-L2CD1310nm, 1.25Gbps, 20km,   0ºC ~ +70ºC,  With Digital Diagnostic Monitoring
DF-3124-L2N1310nm, 1.25Gbps, 20km,  -20ºC ~ +85ºC
DF-3124-L2ND1310nm, 1.25Gbps, 20km,  -20ºC ~ +85ºC,  With Digital Diagnostic Monitoring
DF-3124-L2T1310nm, 1.25Gbps, 20km,  -40ºC ~ +85ºC
DF-3124-L2TD1310nm, 1.25Gbps, 20km,  -40ºC ~ +85ºC,  With Digital Diagnostic Monitoring

13.Our item images:









14.Company Information:

Takfly, established in 2000, has been manufacturing and exporting fiber cable, adapter, attenuator, connector, coupler, splitter, termination box, ODF, fiber instruments, media conceiver, switch, optical module, CWDM/DWDM, etc. Takfly's products have passed the management verification: ISO14001: 2004. and goods have passed RoHS, CE, FCC, REACH, EN50575, ISO9001, etc.

So far, Our products have been widely installed in many big worldwide project and work perfectly. Many project contactors ask the first and second operators to purchase fiber items from Takfly for their new project. In addition, we also have builted long term cooperation with Lapp, Amper, Telefonica, orange and Ericsson. All enquiry are warmly welcomed here no matter it's small or big, we promise to provide all customers high quality and good price item.

15.Why choose Takfly?

Service

1.Customer's logo: Acceptable;
2.General inspection on fixing before packing;
3.Third party inspection: Acceptable;
 
Quality Control

All products must go through five checks before manufacturing process;
1.Material incoming inspection before production;
2.Full check after every individual process finished;
3.Full check after production half-done;
4.Full check before packing;
5.Spots check after production packed before shipping;
 
Advantage

1.15 years experience in manufacturing fiber optic products;
2.Availability of R & D with more than 10 engineers;
3.Available of design and making mold with special molding house;
4.High quality, attractive price and fast delivery(2-7days);
5.OEM, ODM customer designs are also welcomed;
6.More than 200 workers;
7.Excellent service;

Delivery

1.Packing: Plastic bag& carton, Neutral packing or as your required;
2.Sample time: 1-3 days after confirm;
3.Order lead time: 2-7working days depend on quantity and products;
4.Shipping port: Shenzhen China or HK;
5.Shipping term: EXW or FOB;
 
Shipping 

1.Once confirmed the order, and payment sent after finishing goods;
2.Goods will be sent within 7 days with the fast, reasonable and efficient shipping mode such as DHL, EMS, UPS,FEDEX, TNT, etc;
3.Please make sure your postal address is correct. Any lost and mistakes because  of wrong address are not supplier's responsibility;
4.Please do not bid if you disagree with the shipping and
handling charge;


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