Specifications

Serial Media Converters >
Device Connectivity
13-25
[e-mail]
www.moxa.com
Device Connectivity
Introduction to CAN-to-Fiber Media Converters
13
Introduction to CAN-to-Fiber Media
Converters
Typical CAN application that uses a CAN-to-fiber converter
CAN copper
ICF-1170I
CAN ber
ICF-1170I
CAN Node
CAN Node CAN Node
The ICF-1170I series CAN-to-fiber converters provide secures data
transmission by using fiber optic transmission to provide complete
isolation and protection against EMI. The ICF-1170I series can
separate and protect critical segments of the system from the rest of
the CAN network and is protocol independent, allowing it to work with
all of the different CAN protocols and frame lengths.
Introduction to CAN
Overview of the ICF-1170I CAN-to-Fiber Converter
Why CAN-to-Fiber Media Converters?
CAN is a serial communications bus defined by the International
Standardization Organization (ISO). The CAN serial bus was introduced
in 1986 as the “Automotive Serial Controller Area Network,” a
multimaster message broadcast system that specifies a maximum
signaling rate of 1 Mbps. It was soon discovered that CANbus
worked extremely well for many other applications, including weaving
machines, elevator systems in large buildings, ships, trains, aircraft,
Many applications require connecting large numbers of CAN devices
in a complex environment. However, since there is a limit to the
driving capability of CANbus, users may not be able to set up as many
CAN devices as they would like. In addition, variations in the allowed
segment lengths, which result from the fact that different types of wire
are used, poses additional limitations. Note that device numbers and
segment lengths are dictated by the ISO 11898-2 standard.
CAN converters are used to get around the limitation on the number
of CAN devices and the upper limit of segment lengths. Most installers
use optical fiber to extend to longer transmission distances since the
fiber will not corrupt the CANbus signal. CAN-to-fiber converters not
only can solve the problem of extending transmission distance, but
will also guarantee more secure data transmission and will not limit
the number of CAN devices that can be used. The ICF-1170I is a CAN-
to-fiber converter that secures data transmission by using fiber optic
transmission to provide complete isolation and protection against EMI.
The ICF-1170I series can separate and protect critical segments of the
system from the rest of the CAN network and is protocol independent,
allowing it to work with all of the different CAN protocols and frame
lengths.
x-ray machines and other medical equipment, logging equipment,
tractors and combines, coffee makers, and major appliances. CAN
systems are extremely versatile. Technicians find it easy to repair or
replace computer hardware in a CAN system without affecting the rest
of the network in any way, and design engineers can easily modify
existing CAN systems for other uses by adding or remove network
nodes.
CAN BUS copper
CAN
Node
CAN
Node
CAN
Node
R
Typical Installation