AFBR-79EBPZ Bi-Directional, QSFP+ Pluggable, Duplex LC 40 Gigabit Ethernet Fiber-Optics Transceiver Data Sheet Description Features The Avago Technologies AFBR-79EBPZ is a Four-Channel, Compliant to the 40GbE XLPPI electrical specification Pluggable, LC Duplex, Fiber-Optic QSFP+ Transceiver for per IEEE 802.3ba-2010 40 Gigabit Ethernet Applications. This transceiver is a high Compliant to QSFP+ SFF-8436 Specification performance module for short-range duplex data com- Power Level 4: Max Power 3.5W munication and interconnect applications. It integrates four electrical data lanes in each direction into transmis- Class 1M Eye Safety sion over a single LC duplex fiber optic cable. Each elec - High port density: 21mm horizontal port pitch trical lane operates at 10.3125 Gbps and conforms to the Operates at 10.3125 Gbps per electrical channel with 40GE XLPPI interface. 64b/66b encoded data The AFBR-79EBPZ transceiver internally multiplexes an Links up to 100m using OM3 and 150m using OM4 XLPPI 4x10G interface into two 20Gb/s electrical chan- optical fiber nels, transmitting and receiving each optically over one +10 to +70C case temperature operating range simplex LC fiber using bi-directional optics. This results in an aggregate bandwidth of 40Gbps into a duplex LC Proven High Reliability technology: Avago VCSEL cable. This allows reuse of the installed LC duplex cabling transmitters and Avago PIN receiver infrastructure for 40GbE application. Hot pluggable transceiver for ease of installation and Link distances up to 100 m using OM3 and 150m using servicing OM4 optical fiber are supported. These modules are de - Two wire Serial (TWS) Management Interface with signed to operate over multimode fiber systems using a maskable interrupts for expanded functionality nominal wavelength of 850nm on one end and 900nm on Utilizes a standard LC duplex fiber cable allowing reuse the other end. The electrical interface uses a 38 contact of existing cable infrastructure QSFP+ type edge connector. The optical interface uses a conventional LC duplex connector. This module incorpo- Applications rates Avago Technologies proven integrated circuit and 40 Gigabit Ethernet interconnects VCSEL technology to provide reliable long life, high per- formance, and consistent service. Datacom/Telecom switch & router connections Data aggregation and backplane applications Part Number Ordering Options Proprietary protocol and density applications 40 Gigabit Ethernet Transceiver AFBR-79EBPZ 40 Gigabit Ethernet Receiver AFBR-79EBRZ Evaluation Kit* AFBR-79Q4EKZ *Includes GUI and User Guide Patent - www.avagotech.com/patents LC Duplex Optical Interface 20G VCSEL, PIN and Bidirectional optics 20G VCSEL, PIN and Bidirectional optics 40GE XLPPI Electrical Interface WARNING CAUTION Viewing the laser output with certain optical instruments (for example, eye loupes, magnifiers and microscopes) within a distance of INVISIBLE LASER RADIATION 100 mm may pose an eye hazard. DO NOT VIEW DIRECTLY CAUTION Use of controls or adjustments or performance of procedures WITH OPTICAL INSTRUMENTS other than those specified herein may result in hazardous radiation CLASS 1M LASER PRODUCT exposure. Note: Standard used for classification: EN 60825-1:2007 CLASS 1M LASER PRODUCT: INVISIBLE LASER RADIATION, DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS QSFP Electrical Connector Gearbox IC TX 2 Din 3:0 p/n (8) 20G BiDi Optical 4X10G 20G Laser 4:2 Mux 20G 20G CDR Driver + TIA SCL RX 1 SDA Mod Sel LPMode ModPresL ResetL IntL TX 1 2X20G 2:4 DeMux 20G CDR Dout 3:0 p/n (8) 20G Laser 20G BiDi Optical 20G Driver + TIA RX 2 uC Figure 1. Transceiver Block Diagram Transmitter Receiver The optical transmitter portion of the transceiver (see Fig- The optical receiver portion of the transceiver (see Figure ure 1) incorporates a 4-channel XLPPI input buffer, elec - 1) incorporates two high speed PIN photodiodes, TIAs, trical multiplexer, two laser drivers and two high speed signal processors, electrical de-multiplexer and 4 chan- VCSELs (Vertical Cavity Surface Emitting Laser). The trans- nel electrical output buffer blocks. The Rx Output Buffer mitter is designed for EN 60825 and CDRH Class 1M eye provides XLPPI compatible differential outputs for the safety compliance. The Tx Input Buffer provides XLPPI high speed electrical interface presenting nominal single- compatible differential inputs presenting a nominal dif - ended output impedances of 50 Ohms to AC ground and ferential input impedance of 100 Ohms. AC coupling 100 Ohms differentially that should be differentially termi - capacitors are located inside the QSFP+ module and are nated with 100 Ohms. AC coupling capacitors are located not required on the host board. For module control and inside the QSFP+ module and are not required on the host interrogation, the control interface (LVTTL compatible) in- board. corporates a Two Wire Serial (TWS) interface of clock and The electrical output will squelch for loss of input signal data signals. (unless squelch is disabled) and channel de-activation through TWS interface. To reduce the need for polling, a hardware interrupt signal INTL is provided to inform hosts of an assertion of LOS or Tx FAULT. 2