Finisar AN-2030 specifications Options, Option values, BR, max, 13 BR, min, Vendor SN

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AN-2030: Digital Diagnostic Monitoring Interface for Optical Transceivers

F i n i s a r

1Options

2The bits in the option field shall specify the options implemented in the transceiver as

3described in table 3.6. StandardFinisar SFP transceivers do not implement TX_FAULT

4or RATE_SELECT, so byte 65 set to 00010010b.

5

6

 

 

Table 3.6: Option values

 

Data

Bit

Description of option

 

Address

 

 

 

 

 

 

 

64

7-0

Reserved

 

65

7-6

Reserved

 

65

5

Indicates if RATE_SELECT is implemented. Finisar does not

 

 

 

implement this feature.

 

 

 

NOTE: Lack of implemention does not indicate lack of

 

 

 

simultaneous compliance with multiple standard rates.

 

 

 

Compliance with particular standards should be determined

 

 

 

from Transceiver Code Section (Table 3.4)

 

65

4

TX_DISABLE is implemented and disables the serial output.

 

65

3

TX_FAULT signal implemented.

 

65

2

Loss of Signal implemented, signal inverted from definition in

 

 

 

Table 1 of the SFP MSA.

 

 

 

NOTE: This is not standard SFP/GBIC behavior and should

 

 

 

be avoided, since non-interoperable behavior results.

 

65

1

Loss of Signal implemented, signal as defined in Table 1 of

 

 

 

the SFP MSA.

 

65

0

Reserved

7

 

 

 

8BR, max

9The upper bit rate limit at which the transceiver will still meet its specifications (BR, max)

10is specified in units of 1% above the nominal bit rate. A value of zero indicates that this

11field is not specified.

12

13BR, min

14The lower bit rate limit at which the transceiver will still meet its specifications (BR, min)

15is specified in units of 1% below the nominal bit rate. A value of zero indicates that this

16field is not specified.

17

18Vendor SN

19The vendor serial number (vendor SN) is a 16 character field that contains ASCII

20characters, left-aligned and padded on the right with ASCII spaces (20h), defining the

21vendor’s serial number for the transceiver. A value of all zero in the 16-byte field

22indicates that the vendor PN is unspecified.

9/26/02 Revision D

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Contents Scope and Overview 35 2. Applicable DocumentsEnhanced Digital Diagnostic Interface Definition Overview Password Entry 8 bytes Specific Data Field DescriptionsCal Constants Bytes Control Functions 8 bytesSerial ID Data Fields Address A0 DataName Bytes Description of Field Address Connector IdentifierIdentifier values Extended IdentifierConnector values Description of connectorTransceiver Transceiver codes4a Sonet Reach Specifiers EncodingSpeed Reach Specifier bit Description Code Description of encoding mechanismBR, nominal Length 9μ-kmLength 9μ Length 50μLength Copper Vendor nameDwdm Channel Spacing Vendor OUIVendor Rev Laser WavelengthDwdm Wavelength Fraction Options Option valuesBR, 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 12 Bit weights C for temperature reporting registers 13 Digital temperature format TemperatureN i s a r Alarm and Warning Thresholds 14 Alarm and Warning Thresholds 2-Wire Address A2hN i s a r 16a Unsigned fixed-point binary format for slopes 16b Format for offsets16c IEEE-754 Single-Precision Floating Point Number Format 16d Example of Floating Point RepresentationBit Name Description Alarm and Warning Flags LOS18 Alarm and Warning Flag Bits 2-Wire Address A2h 19 Password Addresses 2-Wire Address A2h 20 User Eeprom 2-Wire Address A2hByte Bit Name Description Address # Bytes Name DescriptionWire Interface Operation Ddtc Electrical Interface Definition OverviewN i s a r Current Address Read Detailed 2 -Wire Serial Port Operation N i s a r Wire Protocol Data Transfer Protocol DC Electrical Characteristics Vcc = 3.15V toFor More Information