Juniper Compatible QSFP-100G-SR1.2-J-FL Quick Spec:

Part Number: QSFP28-100GBase-SR1.2 QSFP28-100GBase-SR1.2-EXT QSFP28-100GBase-SR1.2-IND

Form Factor: QSFP28

TX Wavelength: 850nm/910nm

Reach: 100m

Cable Type: OM4 MMF

Rate Category: 100GBase

Interface Type: SR1.2

DDM: Yes

Connector Type: Dual-LC

Juniper Compatible QSFP-100G-SR1.2-J-FL Features:

• 4 independent full-duplex channels

• Up to 28Gbps data rate per channel

• QSFP28 MSA compliant

• Up to 100m over OM4 MMF transmission

• Up to 70m over OM3 MMF transmission

• Single 3.3V power supply

• Maximum power consumption 3.5W

• MTP/MPO optical connector

• RoHS-6 compliant

• Operating Case Temperature

  • Standard: 0°C to +70 °C

  • Extended -5°C to +85 °C

  • Industrial -40°C to +85 °C

    
    

    Juniper Compatible QSFP-100G-SR1.2-J-FL Applications:

• Data Center, Rack to rack

• Infiniband HDR

• 100G Ethernet

Juniper Compatible QSFP-100G-SR1.2-J-FL General Description

This product can support 100Gb/s bit rates. It is a parallel Quad Small Form-factor Pluggable (QSFP28) Bi-Direction optical module. The module integrates four host electrical data into two optical lanes (by Dual Wavelength VCSEL Bi-Directional Optical Interface, 850nm and 910nm) to allow optical communication over a 2-fiber duplex LC optical multi-mode fiber. Reversely, on the receiver side, the module de-multiplexes 2 sets of optical input signal and converts them to 4 channels of electrical data.

An optical fiber ribbon cable with an LC connector can be plugged into the QSFP28 module receptacle. Proper alignment is ensured by the guide pins inside the receptacle. The cable usually cannot be twisted for proper channel to channel alignment. Electrical connection is achieved through an MSA-compliant 38-pin edge type connector.

The module operates by a single +3.3V power supply. LVCMOS/LVTTL global control signals, such as Module Present, Reset, Interrupt and Low Power Mode, are available with the modules. A 2-wire serial interface is available to send

and receive more complex control signals, and to receive digital diagnostic information. Individual channels can be addressed and unused channels can be shut down for maximum design flexibility.

The product is designed with form factor, optical/electrical connections, and digital diagnostic interface according to the QSFP28 Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity, and EMI interference. The module offers very high functionality and feature integration, accessible via a two-wire serial interface.

Functional Description

This product can support 100Gb/s bit rates. It is a parallel Quad Small Form-factor Pluggable (QSFP28) Bi-Direction optical module. The module integrates four host electrical data into two optical lanes (by Dual Wavelength VCSEL Bi- Directional Optical Interface, 850nm and 900nm) to allow optical communication over a 2-fiber duplex LC optical multi- mode fiber. Reversely, on the receiver side, the module de-multiplexes 2 sets of optical input signal and converts them to 4 channels of electrical data. The receiver module outputs electrical signals are also voltage compatible with Common Mode Logic (CML) levels. Figure 1 shows the functional block diagram of this product.

A single +3.3V power supply is required to power up the module. 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, the module responds to 2-wire serial communication commands. The ModSelL allows the use of multiple QSFP28 modules on a single 2-wire interface bus – individual ModSelL lines for each QSFP28 module must be used.

Serial Clock (SCL) and Serial Data (SDA) are required for the 2-wire serial bus communication interface and enable the host to access the QSFP28 memory map.

The ResetL pin enables a complete module reset, returning module 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 the module indicates a completion of the reset interrupt. The module 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 requiring a reset.

Low Power Mode (LPMode) pin is used to set the maximum power consumption for the module 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 module, is normally pulled up to the host Vcc. When a module 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 a module is present by setting ModPrsL to a “Low” state.

Interrupt (IntL) is an output pin. Low indicates a possible module 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

.

Transceiver Block Diagram

Figure 1. Transceiver Block Diagram

Pin Assignment and Description

Figure 2. MSA Compliant Connector

Pin Definition

Notes:

1. GND is the symbol for signal and supply ( power) common for QSFP28 modules. All are common within the QSFP2 8 module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal common ground plane.

2. VccRx, Vcc1 and VccTx are the receiver and transmitter power suppliers and shall be applied concurrently. Recommended host board power supply filtering is shown in Figure 4 below. Vcc Rx, Vcc1 and Vcc Tx may be internally connected within the QSFP2 8 transceiver module in any combination. The connector pins are each rated for a maximum current of 1000 mA.

Absolute Maximum Ratings

Recommended Operating Conditions

Notes:

1. FEC provided by host system.

2. FEC required on host system to support maximum distance.

Recommended Power Supply Filter

Electrical Characteristics

Electrical Characteristics-Transmitter (each lane)

Electrical Characteristics-Receiver (each lane)

Notes:

1. Vcm is generated by the host. Specification includes effects of ground offset voltage.

2. From 250MHz to 30GHz.

Optical Characteristics-Transmitter

Optical Characteristics-Receiver

Notes:

1. Even if the mTDEC<0.9 dB, the OMA (min) must exceed this value.

   
   

2. If measured into type A1a.2 50um fiber in accordance with IEC 61280-1-4.

   
   

3. The receiver shall be able to tolerate, without damage, continuous exposure to a modulated optical input signal having this power level on one lane. The receiver does not have to operate correctly at this input power.

   
   

4. Average receive power, each lane (min) is informative and not the principal indicator of signal strength. A received power below this value cannot be compliant; however, a value above this does not ensure compliance.

5. Measured with conformance test signal at TP3 as per following:

   Stressed eye closure (SECq), each lane	4.5	dB
   OMA of each aggressor, each lane	3	dBm

   
   

   Digital Diagnostic Functions

   The following digital diagnostic characteristics are defined over the normal operating conditions unless otherwise specified.

   Parameter	Symbol	Min	Typ	Max	Unit	Notes
   Temperature monitor absolute error	DMI TEMP	-3		3	deg. C	Over operating temperature range
   Supply voltage monitor absolute error	DMI VCC	-0.15		0.15	V	Over Full operating range
   Channel RX power monitor absolute error	DMIRX_CH	-2		2	dB	1
   Channel Bias current monitor	DMIIbias_CH	-10%		10%	mA
   Channel TX power monitor absolute error	DMITX_CH	-2		2	dB	1

   Notes:

   
   

   1. Due to measurement accuracy of different single mode fibers, there could be an additional +/-1 dB fluctuation, or a +/- 3 dB total accuracy.

Mechanical Dimensions

ESD

Figure 5. Mechanical Outline

This transceiver is specified as ESD threshold 1 kV for high- speed data pins and 2 kV for all others 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 1M Laser Product according to EN 60825-1:2014. This product complies with 21 CFR 1040. 10 except for deviations pursuant to Laser Notice No. 50, dated (June 24, 2007).

Licensing

The following U.S. patents are licensed by Finisar to FluxLight, Inc.: U.S. Patent Nos: 7,184,668, 7,079,775, 6,957,021, 7,058,310, 6,952,531, 7,162,160, 7,050,720