Delta Electronics LCP-155B4JSRx - Manual (Page 8)

DELTA ELECTRONICS, INC.
8 Jan., 2008
Rev. 0D
www.deltaww.com
SFP timing parameters for SFP management
Parameter Symbol Min. Max. Unit Unit Conditions
TX_DISABLE Assert
time
t_off 10 μsec
Time from rising edge of TX_DISABLE to
when the optical output falls below 10% of
nominal
TX_DISABLE
Negate time
t_on 1 msec
Time from falling edge of TX_DISABLE to
when the modulated optical output rises
above 90% of nominal
Time to initialize,
including reset of
TX_FAULT
t_init 300 msec
From power on or negation of TX_Fault using
TX Disable.
TX Fault Assert
Time t_fault
100 μsec Time from fault to TX fault on.
TX_DISABLE to
reset
t_rest 10 μsec
Time TX Disable must be held high to 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