QSFP28 ER4 Lite Single Mode Optical Transceiver 100G 1310nm LC

Product Description

100G QSFP28 ER4 Lite Optical Transceiver Singlemode

1.General Description

This product is a 100Gb/s transceiver module designed for optical communication applications compliant to 100GBASE-ER4 Lite standard. The module converts 4 input channels of 25Gb/s electrical data to 4 channels of LAN WDM optical signals and then multiplexes them into a single channel for 100Gb/s optical transmission.up to 112Gb/s optical transmission. Reversely on the receiver side, the module de-multiplexes a 100Gb/s optical input into 4 channels of LAN WDM optical signals , up to 112Gb/s optical input and then converts them to 4 output channels of electrical data. The central wavelengths of the 4 LAN WDM channels are 1295.56, 1300.05, 1304.58 and 1309.14 nm as members of the LAN WDM wavelength grid defined in IEEE 802.3ba. The high performance cooled LAN WDM EA-DFB transmitters and high sensitivity APD receivers provide superior performance for 100Gigabit Ethernet applications up to 40km links with FEC.

The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP+ Multi-Source Agreement (MSA). It has been designed to meet the harshest external

operating conditions including temperature, humidity and EMI interference.

2. Functional Description

The transceiver module receives 4 channels of 25Gb/s or 28Gb/s electrical data, which are processed by a 4-channel Clock and Data Recovery (CDR) IC that reshapes and reduces the jitter of each electrical signal.Subsequently, each of 4 laser driver IC's converts one of the 4 channels of electrical signals to an optical signal that is transmitted from one of the 4 cooled EML lasers which are packaged in the Transmitter Optical Sub-Assembly (TOSA). Each laser launches the optical signal in specific wavelength specified in IEEE802.3ba 100GBASE-ER4 requirements. These 4-lane optical signals will be optically multiplexed into a single fiber by a 4-to-1 optical WDM MUX. The optical output power of each channel is maintained constant by an automatic power control (APC) circuit. The transmitter output can be turned off by TX_DIS hardware signal and/or 2-wire serial interface The receiver receives 4-lane LAN WDM optical signals. The optical signals are de-multiplexed by a 1-to-4 optical DEMUX and each of the resulting 4 channels of optical signals is fed into one of the 4 receivers that are packaged into the Receiver Optical Sub-Assembly (ROSA). Each receiver converts the optical signal to an electrical signal. The regenerated electrical signals are retimed and de-jittered and amplified by the RX portion of the 4-channel CDR. The retimed 4-lane output electrical signals are compliant with CEI-28G-VSR interface requirements. In addition, each received optical signal is monitored by the DOM section. The monitored value is reported through the 2-wire serial interface. If one or more received optical signal is weaker than thethreshold level, RX_LOS hardware alarm will be triggered.A single +3.3V power supply is required to power up this product. Both power supply pins VccTx and VccRx are internally connected and should be applied concurrently. As per MSA specifications the module offers 7 low speed hardware control pins (including the 2-wire serial interface): ModSelL, SCL, SDA,ResetL, LPMode, ModPrsL and IntL.Module Select (ModSelL) is an input pin. When held low by the host, this product responds to 2-wire serial communication commands. The ModSelL allows the use of this product on a single 2-wire interface bus –individual ModSelL lines must be used.Serial Clock (SCL) and Serial Data (SDA) are required for the 2-wire serial bus  enable the .host to access the QSFP28 memory map.communication interface and

The ResetL pin enables a complete reset, returning the settings to their default state, when a low level on the ResetL pin is held for longer than the minimum pulse length. During the execution of a reset the host shall

disregard all status bits until it indicates a completion of the reset interrupt. The product indicates this by posting an IntL (Interrupt) signal with the Data_Not_Ready bit negated in the memory map. Note that on

power up (including hot insertion) the module should post this completion of reset interrupt without requirin a reset.

Low Power Mode (LPMode) pin is used to set the maximum power consumption for the product in order to protect hosts that are not capable of cooling higher power modules, should such modules be accidentally

inserted.Module Present (ModPrsL) is a signal local to the host board which, in the absence of a product, is normal pulled up to the host Vcc. When the product is inserted into the connector, it completes the path to ground through a resistor on the host board and asserts the signal.

ModPrsL then indicates its present by setting ModPrsL to a “Low” state.

Interrupt (IntL) is an output pin. “Low” indicates a possible operational fault or a status critical to the host system. The host identifies the source of the interrupt using the 2-wire serial interface. The IntL pin is an open collector output and must be pulled to the Host Vcc voltage on the Host board.

 

 

ESD

This transceiver is specified as ESD threshold 1kV for SFI pins and 2kV for all other electrical input pins, tested

per MIL-STD-883, Method 3015.4 /JESD22-A114-A (HBM). However, normal ESD precautions are still required during the handling of this module. This transceiver is shipped in ESD protective packaging. It should be removed from the packaging and handled only in an ESD protected environment.

.Laser Safety

This is a Class 1 Laser Product according to EN 60825-1:2014. This product complies with 21 CFR 1040.10 and

1040.11 except for deviations pursuant to Laser Notice No. 50, dated (June 24, 2007).

Caution: Use of controls or adjustments or performance of procedures other than those specified herein may

result in hazardous radiation exposure.

 

OEM and ODM

OEM/ODM order is available.

Guarantee
We promise all the advertised optical transceivers are brand new with new components and parts and absolutely never use old and refurbished materials. All the optical transceivers have been through functional test and aging test. We provide 3 years warranty for all the optical transceivers from the date of shipment.

 

What we supply

We supply all kinds of compatible optical transceiver modules, including SFP, GBIC, SFP+, XENPAK, X2 , XFP, BIDI,CWDM,DWDM and other special transceiver modules. Our products are compatible with most of brands. If more details, please contact us.

 

FAQ

Q:Do you sell second-hand products?

A:No.All our products are brand new,we never use second-hand components.

 

Q:What payment terms do you accept?

A:T/T,Paypal,Western Union are acceptable.

 

Q:What are the shipping ways can you offer?

A:Our usual shipping ways are DHL,FedEX,TNT,UPS,EMS etc.It will take 3-7days.

 

Q:Do your products come with warranty?

A:Yes,We provide 3 years warranty for all our products from the date of shipment.

 

Q:What devices can your products compatible with?

A:Our products are compatible with Mainstream switches.

 

Q:How to place an order?

A:1>Order details confirmed,please tell us the model and quantity you need.
2>Proforma Invoice confirmed, the order will be arranged upon receipt of your payment.
3>Confirm and ship the goods, then tracking number will be sent to you promptly.
4>We will help to track your goods until you receive them safely.