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參數(shù)資料
| 型號： | AFBR-57D7APZ |
| 元件分類： | 光收發(fā) |
| 英文描述： | FIBER OPTIC TRANSCEIVER, 840-860nm, 8500Mbps(Tx), 8500Mbps(Rx), SURFACE MOUNT, LC CONNECTOR |
| 封裝： | ROHS COMPLIANT PACKAGE |
| 文件頁數(shù)： | 12/19頁 |
| 文件大?。?/td> | 246K |
| 代理商： | AFBR-57D7APZ |
2
Description, continued
As an enhancement to the conventional SFP interface
defined in SFF-8074i, the AFBR-57D7APZ is compliant to
SFF-8472 (digital diagnostic interface for optical trans-
ceivers). Using the 2-wire serial interface defined in the
SFF-8472 MSA, the AFBR-57D7APZ provides real time tem-
perature, supply voltage, laser bias current, laser average
output power and received input power. This information
is in addition to conventional SFP base data. The digital
diagnostic interface also adds the ability to disable the
transmitter (TX_DISABLE), monitor for Transmitter Faults
(TX_FAULT), and monitor for Receiver Loss of Signal
(RX_LOS).
Installation
The AFBR-57D7APZ can be installed in any SFF-8074i
compliant Small Form Pluggable (SFP) port regardless of
host equipment operating status. The AFBR-57D7APZ 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 2-wire serial interface is based on ATMEL AT24C01A
series EEPROM protocol and signaling detail. Conventional
EEPROM memory, bytes 0-255 at memory address 0xA0,
is organized in compliance with SFF-8074i. New digital
diagnostic information, bytes 0-255 at memory address
0xA2, is compliant to SFF-8472. The new diagnostic in-
formation provides the opportunity for Predictive Failure
Identification, Compliance Prediction, Fault Isolation and
Component Monitoring.
Predictive Failure Identification
The AFBR-57D7APZ predictive failure feature allows a host
to identify potential link problems before system perfor-
mance 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, maintain-
ing 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
Compliance prediction is the ability to determine if an
optical transceiver is operating within its operating and en-
vironmental requirements. AFBR-57D7APZ 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.
Fault Isolation
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-57D7APZ real-time monitors of
Tx_Bias, Tx_Power, Vcc, Temperature and Rx_Power can be
used to assess local transceiver current operating condi-
tions. 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 Monitoring
Component evaluation is a more casual use of the
AFBR-57D7APZ 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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| AFBR-57E6APZ-HT | 功能描述:MM LC SFP FE DMI ROHS 95DEG 制造商:broadcom limited 系列:- 零件狀態(tài):在售 數(shù)據(jù)速率:125MBd 波長:1310nm 應(yīng)用:以太網(wǎng) 電壓 - 電源:3 V ~ 3.6 V 連接器類型:LC 雙工 安裝類型:可插入式，SFP 標(biāo)準(zhǔn)包裝:10 |
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