Transceivers and EEPROM Monitoring with A2h Address
Xmultiple Engineering Dept.
A2h Address with EEPROM with Serial
Xmultiple SFP transceivers
are hot-pluggable, 3.3 V,
duplex-LC transceivers that
provide a high-speed serial
link at a signaling rate of
up to 2.125 Gbps. They are
designed for use in ANSI Fiber
Channel and Gigabit Ethernet
applications. These transceivers
provide the LC optical receptacle
that is compatible with the
industry-standard LC connector.
digital diagnostic monitoring
(DDM) interface uses the same
two-wire serial ID interface
defined in the SFP MSA specification.
The standard serial ID information
is located at address A0h.
Using address A2h, the user
can monitor transceiver parameters,
including temperature, voltage,
laser bias current, laser
power, and receiver power.
Alarms and warnings are provided
when the monitored parameters
exceed predefined threshold
values. All transceivers include
a loss-of-signal-detect circuit,
which provides a TTL logic
high output when an unusable
input optical signal level