Delta Electronics Multi-Rate CWDM SFP Transceiver LCP-155 CWDM Uživatelský manuál stáhnout pdf (Strana 8)

LCP-2488D4RXXR

Series

DELTA ELECTRONICS, INC.

8 Revision: S4

09/14/2010

www.deltaww.com

SFP timing parameters for SFP management

Parameter Symbol Min. Max. Unit Note

TX_DISABLE Assert time t_off 100 µsec 1

TX_DISABLE Deassert time t_on 100 msec 2

Time to initialize, including

reset of TX_FAULT

t_init 300 msec 3

TX Fault Assert Time t_fault 100 µsec 4

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:

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

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

From power on or negation of TX_Fault using TX Disable.

Time from fault to TX fault on.

Time TX Disable must be held high to reset TX_Fault.

Time from LOS state to Rx LOS assert.

Time from non-LOS state to Rx LOS deassert.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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Delta Electronics Multi-Rate CWDM SFP Transceiver LCP-155 CWDM Uživatelský manuál Strana 8