
LCP-1250A4FDRx
12 09/20/2011
Rev. S0
4)
State/ Control Bits
Byte Bit Name Description
110 7 Tx Disable State Digital state of the Tx disable input pin
Read/ Write bit that allow software disable of laser
110 5 Reserved
110 4 Rate Select tate NA
110 2 Tx Fault Digital state of the Tx fault output pin
110 1 LOS Digital state of the LOS output pin.
5)
Optional Set of Alarm and Warning
112 7 Temp High Alarm Set when internal temperature exceeds high alarm level
112 6 Temp Low Alarm Set when internal temperature is below low alarm level
Set when internal supply voltage exceeds high alarm level
112 4 Vcc Low Alarm Set when internal supply voltage is below low alarm level
112 3 Tx Bias High Alarm Set when Tx Bias current exceeds high alarm level
Set when Tx Bias current is below low alarm level
112 1 Tx Power High Alarm Set when Tx output power exceeds high alarm level
112 0 Tx Power Low Alarm Set when Tx output power is below low alarm level
power exceeds high alarm level
113 6 Rx Power Low Alarm Set when received power is below low alarm level
113 5-0 Reserved
Set when internal temperature exceeds high warning level
116 6 Temp Low Warning Set when internal temperature is below low warning level
116 5 Vcc High Warning Set when internal supply voltage exceeds high warning level
Set when internal supply voltage is below low warning level
116 3 Tx Bias High Warning Set when Tx Bias current exceeds high warning level
116 2 Tx Bias Low Warning Set when Tx Bias current is below low warning level
Set when Tx output power exceeds high warning level
116 0 Tx Power Low Warning Set when Tx output power is below low warning level
117 7 Rx Power High Warning Set when received power exceeds high warning level
ived power is below low warning level
117 5-0 Reserved
Digital Diagnostic Monitor Accuracy
Parameter Typical Value Note
Transceiver Temperature ± 3˚C 1
TX Optical Power ± 3dB
Notes:
1) Temperature is measured internal to the transceiver
2) Voltage is measured internal to the transceiver
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