DELTA ELECTRONICS, INC.

8

Nov., 2006

Rev. 1E

www.deltaww.com

SFP timing parameters for SFP management

Parameter

Symbol

Min.

Max.

Unit

Note

TX_DISABLE Assert time

t_off

10

μsec

1

TX_DISABLE Negate time

t_on

1

msec

2

Time to initialize, including

reset of TX_FAULT

t_init

300

msec

3

TX Fault Assert Time

t_fault

100

μsec

4

TX_DISABLE to reset

t_rest

10

μsec

5

LOS Assert Time

t_loss_on

100

μsec

6

LOS Deassert Time

t_loss_off

100

μsec

7

Serial ID Clock Rate

f_serial_clock

100

kHz

Notes:

1)

Time from rising edge of TX_DISABLE to when the optical output falls below 10% of nominal

2)

Time from falling edge of TX_DISABLE to when the modulated optical output rises above 90% of

nominal

3)

From power on or negation of TX_Fault using TX Disable

4)

Time from fault to TX fault on.

5)

Time TX Disable must be held high to reset TX_Fault

6) Time from LOS state to Rx LOS assert

7)

Time from non-LOS state to Rx LOS deassert