AFBR-59R5LZ Digital Diagnostic 2x7 SFF 850 nm 4.25/2.125/1.0625 GBd, RoHS-Compliant Optical Transceiver Data Sheet Description Features Avago Technologies AFBR-59R5LZ optical transceiver Fully RoHS Compliant supports high-speed serial links over multimode optical Diagnostic Features Per SFF-8472 Diagnostic fiber at signaling rates up to 4.25 GBd. Compliant with Monitoring Interface for Optical Transceivers the Small Form Factor (SFF) Multi Source Agreement Real time monitoring of: (MSA) 2x5/2x10 mechanical specifications for LC Duplex - Transmitted Optical Power transceivers, ANSI Fibre Channel FC-PI and IEEE 802.3 for - Received Optical Power gigabit applications the part is electrically interoperable - Laser Bias Current with 2x5 and 2x6 conformant devices. The AFBR-59R5LZ - Temperature is dimensionally compliant with the SFF MSA form factor - Supply Voltage with the exception of two additional pins for communi- cating with the diagnostic interface. Wide Temp and supply voltage operation (-10C to 85C) (3.3 +/- 10%) As an enhancement to the conventional SFF 2x5 interface Transceiver Specifications per SFF 2x5 Multi-Source defined in the SFF MSA (Multi-Source Agreement), the Agreement and SFF-8472 (revision 9.3) AFBR-59R5LZ is compliant to SFF-8472 (digital diagnostic interface for optical transceivers). Using the 2-wire serial - 4.25 GBd Fibre Channel operation interface defined in the SFF-8472 MSA, the AFBR-59R5LZ for FC-PI 400-M5-SN-I and 400-M6-SN-I provides real time temperature, supply voltage, laser bias - 2.125 GBd Fibre Channel operation current, laser average output power and received average for FC-PI 200-M5-SN-1 and 200-M6-SN-I input power. - 1.0625 GBd Fibre Channel operation for FC-PI 100-M5-SN-I and 100-M6-SN-I This information is in addition to conventional SFP/GBIC Link Lengths at 4.25 Gbd: base data. The digital diagnostic interface also adds the - 150 m with 50 um MMF, 70 m with 62.5 um MMF ability to disable the transmitter (TX DISABLE), moni- tor for Transmitter Faults (TX FAULT) and monitor for Link Lengths at 2.125 Gbd Receiver Signal Detect (Sig Det). This 2x7 package also - 300m with 50um MMF, 150m with 65.5um MMF includes one dedicated hard pin for TX FAULT. Link Lengths at 1.0625 GBd: - 500 m with 50 m MMF, 300 m with 62.5 m MMF Application LC Duplex optical connector interface conforming Fibre Channel and iSCSI HBA Cards to ANSI TIA/EIA604-10 (FOCIS 10A) 850nm Vertical Cavity Surface Emitting Laser Related Products (VCSEL) Source Technology AFBR-57R5APZ: 850 nm +3.3 V LC SFP for IEC 60825-1 Class 1/CDRH Class 1 laser eye safe 4.25/2.125/1.0625 GBd Fibre Channel Compatible with Gigabit Ethernet Patent - www.avagotech.com/patents Digital Diagnostic Interface and Serial Identification Compliance Prediction: The 2-wire serial interface is based on ATMEL AT24C01A Compliance prediction is the ability to determine if an series EEPROM protocol and signaling detail. Conven- optical transceiver is operating within its operating and tional EEPROM memory, bytes 0-255 at memory address environmental requirements. AFBR-59R5LZ devices 0xA0, is organized in compliance with SFF-8074i. New provide real-time access to transceiver internal supply digital diagnostic information, bytes 0-255 at memory voltage and temperature, allowing a host to identify address 0xA2, is compliant to SFF-8472. The new diag- potential component compliance issues. Received nostic information provides the opportunity for Predic- optical power is also available to assess compliance of tive Failure Identification, Compliance Prediction, Fault a cable plant and remote transmitter. When operating Isolation and Component Monitoring. out of requirements, the link cannot guarantee error free transmission. The I2C accessible memory page address 0xB0 is used internally by SFP for the test and diagnostic purposes Fault Isolation and it is reserved. The fault isolation feature allows a host to quickly pin- Predictive Failure Identification point the location of a link failure, minimizing system downtime. For optical links, the ability to identify a fault The predictive failure feature allows a host to identify at a local device, remote device or cable plant is crucial potential link problems before system performance is to speeding service of an installation. AFBR-59R5LZ real- impacted. Prior identification of link problems enables time monitors of Tx Bias, Tx Power, Vcc, Temp and Rx a host to service an application via fail over to a redun- average power can be used to assess local transceiver dant link or replace a suspect device, maintaining system current operating conditions. In addition, status flags Tx uptime in the process. For applications where ultra-high Disable and Rx Signal Detect are mirrored in memory and system uptime is required, a digital SFF provides a means available via the two-wire serial interface. to monitor two real-time laser metrics associated with observing laser degradation and predicting failure: aver- age laser bias current (Tx Bias) and average laser optical power (Tx Power). OPTICAL INTERFACE ELECTRICAL INTERFACE RECEIVER RD+ (RECEIVE DATA) AMPLIFICATION LIGHT FROM FIBER PHOTO-DETECTOR & QUANTIZATION RD- (RECEIVE DATA) Rx SIGNAL DETECT MOD-DEF2 (SDA) CONTROLLER & MEMORY MOD-DEF1 (SCL) MOD-DEF0 TRANSMITTER TX DISABLE LASER TD+ (TRANSMIT DATA) DRIVER & LIGHT TO FIBER VCSEL SAFETY TD- (TRANSMIT DATA) CIRCUITRY TX FAULT Figure 1. Transceiver Functional Diagram 2