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參數(shù)資料
| 型號(hào)： | FTLF1318P2WTL |
| 元件分類： | 光收發(fā) |
| 英文描述： | FIBER OPTIC TRANSCEIVER, 1270-1360nm, 1250Mbps(Tx), 1250Mbps(Rx), PANEL MOUNT, LC CONNECTOR |
| 封裝： | ROHS COMPLIANT, PACKAGE-20 |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大小： | 759K |
| 代理商： | FTLF1318P2WTL |
FTLF1318P2xTL SFP Product Specification – April 2007
F i n i s a r
Finisar Corporation April 12, 2007 Rev. A1
Page 6
VIII. Digital Diagnostic Functions
Finisar FTLF1318P2xTL SFP transceivers support the 2-wire serial communication
protocol as defined in the SFP MSA
1
. It is very closely related to the E
2
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 unique 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.
The SFP MSA defines a 256-byte memory map in E
2
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 AN-
2030: “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 E
2
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 SFP MSA documentation
1
or Finisar Application
Note AN-2030.
Digital diagnostics for the FTLF1318P2xTL are internally calibrated by default.
Please note that evaluation board FDB-1018 is available with Finisar ModDEMO
software that allows simple to use communication over the 2-wire serial interface.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FTLF1318P2XCL | 制造商:FRONTIER 制造商全稱:Frontier Electronics. 功能描述:Product Guide |
| FTLF1318P3BTL | 功能描述:TXRX SFP 1.25GB/S 1310NM RoHS:是 類別:光電元件 >> 光纖 - 收發(fā)器 系列:* 標(biāo)準(zhǔn)包裝:20 系列:* |
| FTLF1318P3XTL | 制造商:FRONTIER 制造商全稱:Frontier Electronics. 功能描述:Product Guide |
| FTLF1319F1GTL | 功能描述:TXRX OPT SFF 2 GB/S 1310NM RoHS:是 類別:光電元件 >> 光纖 - 收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:20 系列:* |
| FTLF1319F1HTL | 制造商:Finisar Corporation 功能描述:1310NM FP, GIGE, - Trays 制造商:Finisar Corporation 功能描述:TX/RX Optical Fiber 2125Mbps 10-Pin |
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