16
8.5 G SFP+ 850 NM LIMITING TRANSCEIVER,
8 GIGABIT FIBRE CHANNEL COMPLIANT
Other information related to the SFP+ optical transceiver includes:
Section 4.1
Digital diagnostic monitoring and serial ID operation
Section 4.2
Package and handling instructions
Section 4.3
ESD discharge (ESD)
Section 4.4
Eye safety
4.1
Digital Diagnostic Monitoring and Serial ID Operation
The PLRXPL-Vx-SH4-23-N optical transceiver is equipped with a two-wire serial
EEPROM that is used to store specic information about the type and identi-
cation of the transceiver as well as real-time digitized information relating to
the transceiver’s performance. See the Small Form Factor Committee document
number SFF-8472 Revision 10.3, dated December 1, 2007 for memory/address
organization of the identication data and digital diagnostic data. The enhanced
digital diagnostics feature monitors ve key transceiver parameters which are in-
ternally calibrated and should be read as absolute values and interpreted as follows:
Transceiver Temperature in degrees Celsius:
Internally measured. Represented as
a 16 bit signed two’s complement value in increments of 1/256°C from -40 to
+85°C with LSB equal to 1/256°C. Accuracy is ± 3°C over the specied operating
temperature and voltage range.
Vcc/Supply Voltage in Volts:
Internally measured. Represented as a 16-bit unsigned
integer with the voltage dened as the full 16-bit value(0 – 65535) with LSB equal
to 100 uV with a measurement range of 0 to +6.55 V. Accuracy is ± three percent
of nominal value over the specied operating temperature and voltage ranges.
TX Bias Current in mA:
Represented as a 16-bit unsigned integer with current de-
ned as the full 16-bit value (0 – 65535) with LSB equal to 2 uA with a measure-
ment range of 0 – 131 mA. Accuracy is ± 10 percent of nominal value over the
specied operating temperature and voltage ranges.
TX Output Power in mW:
Represented as a 16-bit unsigned integer with the power
dened as the full 16-bit value (0 – 65535) with LSB equal to 0.1 uW. Accuracy is ±
2 dB over the specied temperature and voltage ranges over the range of -10 dBm
to 0 dBm. Data is not valid when transmitter is disabled.
RX Received Optical Power in mW:
Represented as average power as a 16-bit un-
signed integer with the power dened as the full 16-bit value (0 – 65535) with LSB
equal to 0.1 uW. Accuracy is ± 3 dB over the specied temperature and voltage
ranges over the power range of -14 dBm to 0 dBm.
Section 4
Related Information