AFBR-709SMZ Avago 10Gb Ethernet, 850 nm, 10GBASE-SR/SW, SFP+ Transceiver
The Avago AFBR-709SMZ transceiver is part of a family of SFP+ products. This transceiver utilizes Avago’s 850nm VCSEL and PIN Detector technology to provide an IEEE 10Gb Ethernet design compliant with the 10GBASE-SR and 10GBASE-SW standards. The AFBR-709SMZ transceiver is designed to enable 10Gb Ethernet equipment designs with very high port density based on the new electrical and mechanical specification enhancements to the well known SFP specifications developed by the SFF Committee. These specifications are referred to as SFP+ to recognize these enhancements to previous SFP specifications used for lower speed products. Avago Technologies is a an active participant in the SFF Committee specification development activities.
• The AFBR-709ASMZ is an SFP+ 10 Gigabit Ethernet 10GBASE-SR/SW transceiver with case temperature operated at 0-85 °C for use on multimode fiber cables. It is best suited for OM3 high bandwidth MMF link applications with link lengths up to 300 meters.
• AFBR-707SDZ SFP+ 10 Gigabit Ethernet 10GBASE-LRM transceiver for 220 meter operation in all MMF link applications including OM1 and OM2 legacy fiber cables and new high bandwidth OM3 fiber cables.
• AFCT-701SDZ (AFCT-701ASDZ) with case temperature 0-70 (0-85) °C SFP+ 10 Gigabit Ethernet 10GBASE-LR transceiver for operation in SMF link applications to 10 km
• AFCT-5016Z SFP+ Evaluation Board The purpose of this SFP+ evaluation board is to provide the designer with a convenient means for evaluating SFP+ fiber optic transceivers.
• Avago 850nm VCSEL source and Transmitter Optical Subassembly technology
• Avago PIN detector and Receiver Optical Subassembly technology
• Typical power dissipation 600mW
• Full digital diagnostic management interface
• Avago SFP+ package design enables equipment EMI performance in high port density applications with margin to Class B limits
• Optical interface specifications per IEEE 802.3ae 10GBASE-SR and 10GBASE-SW
• Link lengths at 10.3125 GBd:
300m with 50um OM3 MM fiber
400m with 50um OM4 MM fiber
• Electrical interface specifications per SFF Committee SFF 8431 Specifications for Enhanced 8.5 and 10 Gigabit Small Form Factor Pluggable Module “SFP+”
• Management interface specifications per SFF Committee SFF 8431 and SFF 8472 Diagnostic Monitoring Interface for Optical Transceivers
• Mechanical specifications per SFF Committee SFF 8432 Improved Pluggable Formfactor “IPF”
• LC Duplex optical connector interface confirming to ANSI TIA/EA 604-10 (FOCIS 10A)
• Compliant to Restriction on Hazardous Substances (RoHS) per EU and China requirements
• Class 1 Eye safe per requirements of IEC 60825-1 /CDRH
The AFBR-709SMZ transceiver package is compliant with the SFF 8432 Improved Pluggable Formfactor housing specification for the SFP+. It can be installed in any INF-8074 or SFF-8431/2 compliant Small Form Pluggable (SFP) port regardless of host equipment operating status The AFBR-709SMZ is hot-pluggable, allowing the module to be installed while the host system is operating and on-line. Upon insertion, the transceiver housing makes initial contact with the host board SFP cage, mitigating potential damage due to Electro-Static Discharge (ESD).
Digital Diagnostic Interface and Serial Identification
The two-wire interface protocol and signaling detail are based on SFF-8431. Conventional EEPROM memory, bytes 0-255 at memory address 0xA0, is organized in compliance with SFF-8431. New digital diagnostic information, bytes 0-255 at memory address 0xA2, is compliant to SFF-8472. The new diagnostic information provides the opportunity for Predictive Failure Identification, Compliance Prediction, Fault Isolation and Component Monitoring.
Predictive Failure Identification
The AFBR-709SMZ predictive failure feature allows a host to identify potential link problems before system performance is impacted. Prior identification of link problems enables a host to service an application via “fail over” to a redundant link or replace a suspect device, maintaining system uptime in the process. For applications where ultra-high system uptime is required, a digital SFP provides a means to monitor two real-time laser metrics associated with observing laser degradation and predicting failure: average laser bias current (Tx_Bias) and average laser optical power (Tx_Power).
Compliance prediction is the ability to determine if an optical transceiver is operating within its operating and environmental requirements. AFBR-709SMZ devices provide real-time access to transceiver internal supply voltage and temperature, allowing a host to identify potential component compliance issues. Received optical power is also available to assess compliance of a cable plant and remote transmitter. When operating out of requirements, the link cannot guarantee error free transmission.
The fault isolation feature allows a host to quickly pinpoint the location of a link failure, minimizing downtime. For optical links, the ability to identify a fault at a local device, remote device or cable plant is crucial to speeding service of an installation. AFBR-709SMZ real-time monitors of Tx_Bias, Tx_Power, Vcc, Temperature and Rx_Power can be used to assess local transceiver current operating conditions. In addition, status flags TX_DISABLE and Rx Loss of Signal (LOS) are mirrored in memory and available via the two-wire serial interface.
Component evaluation is a more casual use of the AFBR-709SMZ real-time monitors of Tx_Bias, Tx_Power, Vcc, Temperature and Rx_Power. Potential uses are as debugging aids for system installation and design, and transceiver parametric evaluation for factory or field qualification. For example, temperature per module can be observed in high density applications to facilitate thermal evaluation of blades, PCI cards and systems.
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