Delta Electronics Multi-Rate CWDM SFP Transceiver LCP-1250 CWDM Specification Sheet page 7

SFP timing parameters for SFP management
Parameter
TX_DISABLE Assert time
TX_DISABLE Negate time
Time to initialize, including
reset of TX_FAULT
TX Fault Assert Time
TX_DISABLE to reset
LOS Assert Time
LOS Deassert Time
Serial ID Clock Rate
Notes:
Time from rising edge of TX_DISABLE to when the optical output falls below 10% of nominal.
1)
Time from falling edge of TX_DISABLE to when the modulated optical output rises above 90% of
2)
nominal.
From power on or negation of TX_Fault using TX Disable.
3)
Time from fault to TX fault on.
4)
Time TX Disable must be held high to reset TX_Fault.
5)
Time from LOS state to Rx LOS assert.
6)
Time from non-LOS state to Rx LOS deassert.
7)
DELTA ELECTRONICS, INC.
Symbol Min.
t_off
t_on
t_init
t_fault
t_rest 10
t_loss_on
t_loss_off
f_serial_clock
7
Max. Unit
µsec
10
1 msec
300 msec
µsec
100
µsec
µsec
100
µsec
100
100 kHz
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Note
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2
3
4
5
6
7
2008/1/15
Rev. 0A