Delta Electronics LCP-155B4JSRx Series SFP timing parameters for SFP management, Parameter, Unit

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SFP timing parameters for SFP management

SFP timing parameters for SFP management

Parameter

Symbol

Min.

Max.

Unit

Unit Conditions

TX_DISABLE Assert

t_off

 

10

 

Time from rising edge of TX_DISABLE to

 

μsec

when the optical output falls below 10% of

time

 

 

 

 

 

nominal

 

 

 

 

 

TX_DISABLE

t_on

 

1

msec

Time from falling edge of TX_DISABLE to

 

when the modulated optical output rises

Negate time

 

 

 

 

 

above 90% of nominal

 

 

 

 

 

Time to initialize,

 

 

 

 

From power on or negation of TX_Fault using

including reset of

t_init

 

300

msec

TX_FAULT

 

 

 

 

TX Disable.

 

 

 

 

 

TX Fault Assert

t_fault

 

100

μsec

Time from fault to TX fault on.

Time

 

 

 

 

 

 

 

TX_DISABLE to

t_rest

10

 

μsec

Time TX Disable must be held high to reset

reset

 

TX_Fault

LOS Assert Time

t_loss_on

 

100

μsec

Time from LOS state to Rx LOS assert

LOS Deassert Time

t_loss_off

 

100

μsec

Time from non-LOS state to Rx LOS deassert

Serial ID Clock Rate

f_serial_clock

 

100

kHz

 

8

Nov., 2006

 

Rev. 0C

DELTA ELECTRONICS, INC.

www.deltaww.com

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Contents z Compliant with SFP Transceiver MSA specification z Compliant with Industry Standard RFT Electrical Connector and Cagez Single + 3.3V Power Supply and TTL Logic Interface z Duplex LC Connector interfaceElectrical Characteristics Absolute Maximum RatingsRecommended Operating Conditions TransmitterOptical Characteristics Mask of the eye diagram for the optical transmit signalSFP Transceiver Electrical Pad Layout Pin Function Definitions Plug Seq. Pin engagement sequence during hot pluggingLow 0 Protocol IC PLD / PALSerDes IC DELTA SFP ModulePackage Outline Drawing for Metal Housing with Bail de-latch Symbol SFP timing parameters for SFP managementParameter UnitSFP timing parameters Example of initialization during hot plugging, TXDISABLELCP-155B4JSR EEPROM Serial ID Memory Contents 2-Wire Address A0h Regulatory Compliance LCP-155B4JSRX1 X1 Temperature Ordering information for SFP modulesRelated Products