Delta Electronics OC-48/SDH, STM-16 manual SFP timing parameters for SFP management

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	t_init		300	msec	3
reset of TX_FAULT
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.

7	Dec., 2006
	Rev. 0E
DELTA ELECTRONICS, INC.	www.deltaww.com