C h a p t e r 2 | S e a m l e s s C o n n e c t e d F i e l d I n s t r u m e n t s w i t h Et h e r n e t- A PL
ADIN1110 10BASE-T1L MAC-PHY
LTC9111 SPoE PD
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Key Points
• Historically, the communication protocol
of choice for industrial sensors in
process plants was the 4–20 mA current
loop, but 4–20 mA communication
is not fast enough or flexible enough
for today's high-speed sensors and
communication.
• Ethernet-APL is a new communication
protocol that enables greater
bandwidths than 4–20 mA for industrial
applications while maintaining
reliability over long distances.
• Analog Devices helped develop the
IEEE standard for Ethernet-APL and
offers customers a variety of products
to implement Ethernet-APL in their
designs.
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Leading the Way to the Digital Factory
