Finisar AN-2030 specifications BR, nominal, Length 9μ-km, Length 50μ, Length 62.5μ

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AN-2030: Digital Diagnostic Monitoring Interface for Optical Transceivers

F i n i s a r

1BR, nominal

2The nominal bit rate (BR, nominal) is specified in units of 100 Megabits per second,

3rounded off to the nearest 100 Megabits per second. The bit rate includes those bits

4

necessary to encode and delimit the signal as well as those bits

carrying data

5

information. A value of 0 indicates that the bit rate is not specified

and must be

6determined from the transceiver technology. The actual information transfer rate will

7depend on the encoding of the data, as defined by the encoding value.

8

9Length (9μ)-km

10Note that this field is an addition to EEPROM data from the original GBIC definition.

11This value specifies the link length that is supported by the transceiver while operating

12in compliance with the applicable standards using single mode fiber. The value is in

13units of kilometers. A value of 255 means that the transceiver supports a link length

14greater than 254 km. A value of zero means that the transceiver does not support single

15mode fiber or that the length information must be determined from the transceiver

16technology.

17

18Length (9μ)

19This value specifies the link length that is supported by the transceiver while operating

20in compliance with the applicable standards using single mode fiber. The value is in

21units of 100 meters. A value of 255 means that the transceiver supports a link length

22greater than 25.4 km. A value of zero means that the transceiver does not support

23single mode fiber or that the length information must be determined from the transceiver

24technology.

25

26Length (50μ)

27This value specifies the link length that is supported by the transceiver while operating

28in compliance with the applicable standards using 50 micron multi-mode fiber. The

29value is in units of 10 meters. A value of 255 means that the transceiver supports a link

30length greater than 2.54 km. A value of zero means that the transceiver does not

31support 50 micron multi-mode fiber or that the length information must be determined

32from the transceiver technology.

33

34Length (62.5μ)

35This value specifies the link length that is supported by the transceiver while operating

36in compliance with the applicable standards using 62.5 micron multi-mode fiber. The

37value is in units of 10 meters. A value of 255 means that the transceiver supports a link

38length greater than 2.54 km. A value of zero means that the transceiver does not 62.5

39micron multi-mode fiber or that the length information must determined from the

9/26/02 Revision D

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Contents 35 2. Applicable Documents Scope and OverviewEnhanced Digital Diagnostic Interface Definition Overview Specific Data Field Descriptions Password Entry 8 bytesCal Constants Bytes Control Functions 8 bytesSerial ID Data Fields Address A0 DataName Bytes Description of Field Address Identifier ConnectorIdentifier values Extended IdentifierDescription of connector Connector valuesTransceiver codes TransceiverEncoding 4a Sonet Reach SpecifiersSpeed Reach Specifier bit Description Code Description of encoding mechanismLength 9μ-km BR, nominalLength 9μ Length 50μVendor name Length CopperDwdm Channel Spacing Vendor OUIVendor Rev Laser WavelengthDwdm Wavelength Fraction Option values OptionsBR, max 13 BR, minDiagnostic Monitoring Type Date CodeData Description of field Address N i s a r Enhanced Options 10 I/O Timing for Soft Control & Status Functions SFF-8472 Compliance11 SFF-8472 Compliance Diagnostics 13 Digital temperature format Temperature 12 Bit weights C for temperature reporting registersN i s a r 14 Alarm and Warning Thresholds 2-Wire Address A2h Alarm and Warning ThresholdsN i s a r 16b Format for offsets 16a Unsigned fixed-point binary format for slopes16d Example of Floating Point Representation 16c IEEE-754 Single-Precision Floating Point Number FormatBit Name Description LOS Alarm and Warning Flags18 Alarm and Warning Flag Bits 2-Wire Address A2h 20 User Eeprom 2-Wire Address A2h 19 Password Addresses 2-Wire Address A2hByte Bit Name Description Address # Bytes Name DescriptionDdtc Electrical Interface Definition Overview Wire Interface OperationN i s a r Current Address Read Detailed 2 -Wire Serial Port Operation N i s a r Wire Protocol Data Transfer Protocol Vcc = 3.15V to DC Electrical CharacteristicsFor More Information
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