Finisar AN-2030 Specific Data Field Descriptions, Cal Constants Bytes, Password Entry 8 bytes

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		AN-2030: Digital Diagnostic Monitoring Interface for Optical Transceivers					F i n i s a r
1			Figure 3.1: Digital Diagnostic Memory Map
2			Figure 3.1: Digital Diagnostic Memory Map
3		2 wire address 1010000X (A0h)			2 wire address 1010001X (A2h)
4		2 wire address 1010000X (A0h)			2 wire address 1010001X (A2h)
5	0				0
5	0				0	Alarm and Warning
6						Alarm and Warning
7			Serial ID Defined by		55	Thresholds (56 bytes)
8			Serial ID Defined by
8			SFP MSA (96 bytes)			Cal Constants
9			SFP MSA (96 bytes)
9
10	95				95		(40 bytes)
11
11						Real Time Diagnostic
12			Vendor Specific			Real Time Diagnostic
13			Vendor Specific			Interface (24 bytes)
13			(32 bytes)			Interface (24 bytes)
14					119
14					119	Password Entry (8 bytes)
15	127				127	Password Entry (8 bytes)
15
16
16
17
18
19			Reserved in SFP			User Writable
20			Reserved in SFP			User Writable
21			MSA (128 bytes)			EEPROM (120 bytes)
22						EEPROM (120 bytes)
22
23
24					247
25
						Control Functions (8 bytes)

26	255				255


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38Specific Data Field Descriptions

39

40The information in italics in Table 3.1 indicates fields that are specific to the digital

41diagnostics functions.

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9/26/02 Revision D

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Contents 35 2. Applicable Documents Scope and OverviewEnhanced Digital Diagnostic Interface Definition Overview Control Functions 8 bytes Password Entry 8 bytesSpecific Data Field Descriptions Cal Constants BytesSerial ID Data Fields Address A0 DataName Bytes Description of Field Address Extended Identifier ConnectorIdentifier Identifier valuesDescription of connector Connector valuesTransceiver codes TransceiverCode Description of encoding mechanism 4a Sonet Reach SpecifiersEncoding Speed Reach Specifier bit DescriptionLength 50μ BR, nominalLength 9μ-km Length 9μVendor OUI Length CopperVendor name Dwdm Channel SpacingVendor Rev Laser WavelengthDwdm Wavelength Fraction 13 BR, min OptionsOption values BR, maxDiagnostic 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 Address # Bytes Name Description 19 Password Addresses 2-Wire Address A2h20 User Eeprom 2-Wire Address A2h Byte Bit 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