Original FTLX8571D3BNL Module 10G 300m Fiber SFP 850nm Transceiver

Finisar FTLX8571D3BNL Optical Module 10G 300M Fiber SFP 850nm Transceiver

FTLX8571D3BCV Optical Module Fetures:

Hot-pluggable SFP+ footprint

• Supports rate selectable 1.25 Gb/s or 9.95 to 10.3 Gb/s bit rates

• Power dissipation < 1W

• RoHS-6 compliant (lead-free)

• Commercial temperature range 0°C to 70°C

• Single 3.3Vpower supply • Maximum link length of 300m on 2000 MHZ-km MMF

• Uncooled 850nm VCSEL laser

• Receiver limiting electrical interface

• Duplex LC connector • Built-in digital diagnostic functions .

APPLICATIONS

• 1000BASE-SX 1G Ethernet

• 10GBASE-SR/SW 10G Ethernet

Feature of FTLX8571D3BNL

Finisar FTLX8571D3BNL Extended temperature SFP+ transceivers support the 2-wire serial communication protocol as

defined in the SFF-8472. It is very closely related to the E2 PROM defined in the GBIC standard, with the same electrical

specifications. The standard SFP+ serial ID provides access to identification information that describes the transceiver’s

capabilities, standard interfaces, manufacturer, and other information. Additionally, Finisar SFP+ transceivers provide a

enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as

transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply

voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular operating

parameters are outside of a factory set normal range. SFF-8472 defines a 256-byte memory map in E2 PROM that is

accessible over a 2-wire serial interface at the 8 bit address 1010000X (A0h). The digital diagnostic monitoring interface

makes use of the 8 bit address 1010001X (A2h), so the originally defined serial ID memory map remains unchanged. The

interface is identical to, and is thus fully backward compatible with both the GBIC Specification and the SFP Multi Source

Agreement. The complete interface is described in Finisar Application Note AN2030: “Digital Diagnostics Monitoring

Interface for SFP Optical Transceivers”.

The operating and diagnostics information is monitored and reported by a Digital

Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through a 2-wire serial interface. When

the serial protocol is activated, the serial clock signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks

data into the SFP transceiver into those segments of the E2 PROM that are not write-protected. The negative edge clocks

data from the SFP transceiver.

The serial data signal (SDA, Mod Def 2) is bi-directional for serial data transfer. The host

uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a

series of 8-bit data words that can be addressed individually or sequentially. For more information, please see the SFF-

8472 documentation and Finisar Application Note AN-2030. Please note that evaluation board FDB-1027 is available with

Finisar ModDEMO software that allows simple to use communication over the 2-wire serial interface.