Delta Electronics LCP-1250 CWDM 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	2008/1/15
	Rev. 0A
DELTA ELECTRONICS, INC.	www.deltaww.com