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1000base LX / LH SFP Optical Transceiver Module Cisco Compatible 1310nm Wavelength

Categories SFP Optical Transceiver Module
Brand Name: E-link China
Model Number: LNK-GLC-LH-SM
Certification: CE, RoHS, FCC
Place of Origin: Shenzhen, China
MOQ: 1 piece
Payment Terms: T/T, Western Union, MoneyGram, Paypal
Supply Ability: 1000000000pcs/Month
Delivery Time: 3-5 working days
Packaging Details: 10 piece in 1 carton box
power supply: +3.3V
SONET OC-24-LR-1: Compatible
RoHS: Compatible
Data Rate: 1.25Gbps/1.063Gbps
Commercial: 0 to +70°C
Warranty: 2 years
Price: Negotiation
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    1000base LX / LH SFP Optical Transceiver Module Cisco Compatible 1310nm Wavelength

    1000 BASE-LX/LH , LC , Dual fiber 1310nm , SM , 20km , SFP Optical Transceiver Module


    Features

    • 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 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:

    Commercial : 0 to +70°C

    Industrial : -40 to +85°C


    Applications

    • Gigabit Ethernet
    • Fiber Channel
    • Switch to Switch interface
    • Switched backplane applications
    • Router/Server interface
    • Other optical transmission systems

    Description

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


    The transceiver consists of three sections: a VCSEL 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. For further information, please refer to SFP MSA.


    Absolute Maximum Ratings

    Table 1 - Absolute Maximum Ratings

    ParameterSymbolMinMaxUnit
    Supply VoltageVcc-0.54.5V
    Storage TemperatureTs-40+85°C
    Operating Humidity-585%

    Recommended Operating Conditions

    Table 2 - Recommended Operating Conditions

    ParameterSymbolMinTypicalMaxUnit
    Operating Case TemperatureCommercialTc0+70°C
    Industrial-40+85°C
    Power Supply VoltageVcc3.133.33.47V
    Power Supply CurrentIcc300mA
    Data RateGigabit Ethernet1.25Gbps
    Fiber Channel1.063

    Optical and Electrical Characteristics

    Table 3 - Optical and Electrical Characteristics

    ParameterSymbolMinTypicalMaxUnitNotes
    Transmitter
    Centre Wavelengthλc126013101360nm
    Spectral Width (RMS)σ4nm
    Average Output PowerPout-9-3dBm1
    Extinction RatioER9dB
    Optical Rise/Fall Timetr/tf0.26ns
    Data Input Swing DifferentialVIN4001800mV2
    Input Differential ImpedanceZIN90100110Ω
    TX DisableDisable2.0VccV
    Enable00.8V
    TX FaultFault2.0VccV
    Normal00.8V
    Receiver
    Centre Wavelengthλc12601580nm
    Receiver Sensitivity-23dBm3
    Receiver Overload-3dBm3
    LOS De-AssertLOSD-24dBm
    LOS AssertLOSA-35dBm
    LOS Hysteresis14dB
    Data Output Swing DifferentialVout4001800mV4
    LOSHigh2.0VccV
    Low00.8V

    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.


    Timing and Electrical

    Table 4 - Timing and Electrical

    ParameterSymbolMinTypicalMaxUnit
    Tx Disable Negate Timet_on1ms
    Tx Disable Assert Timet_off10µs
    Time To Initialize, including Reset of Tx Faultt_init300ms
    Tx Fault Assert Timet_fault100µs
    Tx Disable To Resett_reset10µs
    LOS Assert Timet_loss_on100µs
    LOS De-assert Timet_loss_off100µs
    Serial ID Clock Ratef_serial_clock400KHz
    MOD_DEF (0:2)-HighVH2VccV
    MOD_DEF (0:2)-LowVL0.8V

    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

    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.


    The digital diagnostic memory map specific data field defines as following.


    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

    Notes:

    Plug Seq.: Pin engagement sequence during hot plugging.

    1) TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; Logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V.

    2) TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7k~10kΩ resistor. Its states are:

    Low (0 to 0.8V): Transmitter on

    (>0.8V, < 2.0V): Undefined

    High (2.0 to 3.465V): Transmitter Disabled

    Open: Transmitter Disabled

    3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7k~10kΩ resistor on the host board. The pull-up voltage shall be VccT or VccR.

    Mod-Def 0 is grounded by the module to indicate that the module is present

    Mod-Def 1 is the clock line of two wire serial interface for serial ID

    Mod-Def 2 is the data line of two wire serial interface for serial ID

    4) LOS is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor. Pull up voltage between 2.0V and Vcc+0.3V. Logic 1 indicates loss of signal; Logic 0 indicates normal operation. In the low state, the output will be pulled to less than 0.8V.

    5) RD-/+: These are the differential receiver outputs. They are internally AC-coupled 100 differential lines which should be terminated with 100Ω (differential) at the user SERDES.

    6) TD-/+: These are the differential transmitter inputs. They are internally AC-coupled, differential lines with 100Ω differential termination inside the module.


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