Moxa Technologies ICF-1171I Series User manual

P/N: 1802011710010
*1802011710010*
ICF-1171I Series
Quick Installation Guide
Version 1.0, June 2022
Technical Support Contact Information
www.moxa.com/support

2022 Moxa Inc. All rights reserved.

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Overview
Introduction
The ICF-1171I Series CAN-to-fiber converters are used in pairs to
connect two CAN (CAN 2.0) or two CAN FD (ISO CAN FD) devices or
networks via single-mode or multi-mode optical fiber. The ICF-1171I
CAN-to-fiber converters provide 2 kV isolation protection for the CAN
interface and dual power inputs to ensure that your CAN system works
uninterrupted.
The ICF-1171I 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 the different CAN protocols and frame
lengths. In other words, the higher layer CAN protocols, based on CAN
(CAN 2.0) and CAN FD (ISO CAN FD), can work through the ICF-1171I
Series.
To connect two CAN devices with a fiber-optic cable, two ICF-1171I
Series converters are required.
Why an ICF-1171I CAN-to-fiber converter?
•Extends the CAN Bus Transmission Distance
Typically, the total transmission distance of a CAN (CAN 2.0) or
CAN FD (ISO CAN FD) system can be extended by 2 km (multi-
mode fiber) or by 40 km (single-mode fiber) using ICF-1171I
converters. However, the reach of these exten sions depends on the
environment, architecture, etc.
•Easily Fulfil Various Communication Scenarios
Two CAN (CAN 2.0) networks or CAN FD (ISO CAN FD) networks
can communicate with each other using different baudrates. The
ICF-1171I converters can automatically detect the baudrate of the
connected CAN (CAN 2.0) device and apply the baudrate itself.
Therefore, you do not need to know the baudrate of the connected
CAN (CAN 2.0) device, making it an extremely convenient feature.
Baudrates can also be set to a predefined value via rotary switches.
Please note that Automatic baudrate detection is only supported in
CAN (CAN 2.0), not in CAN FD.
•Easily Troubleshoot Communication Issues
It is easy to check if an issue exists on the CAN bus or the fiber
link. The ICF-1171I converters come with LEDs that indicate the
fiber link state, fiber communication status, CAN bus state, and
CAN bus communication status.

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Features
•Extends the transmission distance of the overall CAN bus system
•Converts CAN signals to fiber and vice versa
•Supports CAN (or CAN 2.0, including CAN 2.0A and CAN 2.0B) and
its extension CAN FD (CAN Flexible Data Rate); conforms to the
ISO 11898 standard
•CAN (CAN 2.0) and CAN FD (ISO CAN FD) arbitration rate (or
nominal bit rate, arbitration bit rate) is up to 1 Mbps; data rate is
up to 5 Mbps
•Dual power inputs for redundancy
•DIP switch for 120 Ωterminal resistance
•Wide temperature range model available for -40 to 75°C
environments (“-T” models)
•Supports higher layer CAN protocols such as CANopen, DeviceNet,
SAE J1939, etc.
•Supports point-to-point connection to another ICF-1171I
Package Checklist
Before installing the ICF-1171I Series, verify the package contains the
following items:
•ICF-1171I Series CAN-to-fiber converter with a DIN-rail kit pre-
locked on it
•Quick Installation Guide (printed)
•Warranty card
Optional Accessory
•WK-30-02: Wall-mounting kit, 2 plates, 4 screws, 30 x 66.8 x 2
mm
NOTE
Please notify your sales representative if any of the above
items are missing or damaged.

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Mounting Dimensions
ICF-1171I-S-ST/ICF-1171I-M-ST
The appearance is the same for all, including wide-temperature (-T)
models; the only difference is the label of the model.
Top View
Front View

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ATTENTION
Electrostatic Discharge
Warning!
To protect the product from damage
because of electrostatic
discharge, we recommend wearing a grounding device when
handling your ICF-1171I Series.
Hardware Installation Procedure
The ICF-1171I is designed to be attached to a DIN rail or mounted on a
wall. For DIN-rail mounting, push down the spring and properly attach
it to the DIN rail until it “snaps” into place. For wall mounting, install
the wall-mount kit (optional) first and then screw the device onto the
wall. An M3 screw is suggested, and the minimum length of the screw
should be 7 mm.
The following figure illustrates the two suggested mounting options.
DIN-rail Installation
Step 1:
Insert the top of the DIN-rail into
the slot just below the stiff metal
spring.
Step 2:
The DIN
-rail attachment unit will
snap into place as shown below
To remove the ICF-1171I Series from the DIN rail, simply reverse steps
1 and 2 above.

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Wall-mounting Installation
For wall mounting, the suggested direction of the product is upright—
the same as for DIN-rail mounting.
The following figure illustrates how to attach the screws to the
mounting kits:
DIN Rail:
Wall-mount:

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Power Input and Relay
The ICF-1171I supports dual power inputs for redundancy. When one
power input fails, the relay will be triggered. Be sure to install the dual
power inputs for the ICF-1171I Series and choose the correct relay
output when connecting the alarm.
Please see the terminal block definition for power input and relay in the
following table.
Relay
(Normally
closed)
Relay
(Common)
Relay
(Normally
open)
DC
Power
input 1
DC
Power
input 1
DC
Power
input 2
DC
Power
input 2
N.C.
COM
N.O.
V1+
V1-
V2+
V2-
Please see the power input status and corresponding relay status in the
following table:
Power input status
Relay status
Both power inputs are on/off
Normally closed (N.C.)
Power input 1 or power input 2 is on
Normally open (N.O.)
NOTE
Before connecting the equipment to DC power inputs, make
sure
the DC power source voltage is stable
•
The wiring of input terminal block shall be installed by a
skilled person.
•
Wire type: Cu
•
Only use 28-14 AWG wire size, torque value 0.19 N-m.
•
One individual conductor in a clamping point.
NOTE
The equipment is intended to be supplied by the external power
source (UL listed/ IEC 60950
-1/ IEC 62368-1), which output
complies with ES1/SELV, PS2/LPS, output rating is
12 to 48
VDC, 188.5 mA (max.), and ambient temperature 75°C
NOTE
If you are
using a Class I adapter, the power cord should be
connected to an outlet with an earthing connection.
CAN Pin Assignment
Please see the terminal block definition for CAN bus port in the
following table.
CAN High
CAN Low
CAN Signal Ground
CAN_H
CAN_L
CAN_GND

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Make sure CAN high (CAN_H) is connected to the CAN high pin, and
CAN low (CAN_L) is connected to the CAN low pin of your CAN device.
Fiber Cable
ST-Port Pinouts
ST-Port to ST-Port Cable Wiring
ATTENTION
This is a Class 1 laser/LED product. Do not stare into the laser
beam
.
1. Ca
ution—Use of the controls or adjustments or the
performance of procedures other than those specified herein
may result in hazardous radiation exposure."
2.
Complies with 21 CFR 1040.10 and1040.11, except for
co
nformance with IEC 60825-1 Ed. 3., as described in Laser
Notice No. 56, dated May 8, 2019.
Switch Settings
There are three DIP switches on the front panel of the ICF-1171I
Series; DIP switch 1 is reserved for future use. See the usage below.
Use DIP switch 3 to set up CAN (CAN 2.0) or CAN FD (ISO CAN FD)
mode. CAN in the table below is equal to CAN 2.0, and CAN FD is equal
to IS O CAN FD.
CAN Mode
Switch 3
CAN FD
ON
CAN
OFF (default)
Use DIP switch 2 to enable terminator.
120 Ω Terminator
Switch 2

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Enable
ON
Disable
OFF (default)
There are two rotary switches at the bottom of the ICF-1171I Series,
which is used to configure the arbitration rate or data rate of the CAN
bus. Rotary switch 1 is used to set up the arbitration rate of CAN (CAN
2.0)/CAN FD (ISO CAN FD); rotary switch 2 is used to set up the data
rate of CAN FD (ISO CAN FD).
Explore the following use cases to see how you use the rotary switches:
Use case 1: My devices use CAN (CAN2.0) with communication
speed/bit rate of 1Mbps. How do I set up the baudrate of ICF-1171I?
You can set up a fixed baudrate by switching rotary switch 1 to PIN 1,
and ignore rotary switch 2. Or, you can use auto baudrate by switching
rotary switch 1 to PIN 0. When the ICF-1171I receives the data frames
sent by the connected CAN device, it can detect the baudrate and set to
itself.
The auto baudrate function sets up a sequence to initialize the
baudrates supported by the ICF-1171I (e.g., 1Mbps, 800 kbps, 500kbps
as in the table below).
Also, make sure the DIP switch in the front panel is set to “CAN” mode.
Use case 2: My devices use CAN FD (ISO CAN FD) with dual bit rates
(or called BRS, Bit Rate Switch), nominal/arbitration rate is 1Mbps, and
data rate is 2Mbps.
In this case, please set rotary switch 1 to PIN 1, and set rotary switch 2
to PIN 3. Also, make sure the DIP switch in the front panel is set to
“CAN FD” mode.
Auto-baudrate is supported in CAN (CAN 2.0). To use auto baudrate,
send the CAN data to the ICF-1171I. The ICF-1171I will detect the
baudrate and apply to itself.
CAN 2.0/CAN FD Arbitration Rate
Rotary Switch 1 Pin Position
Auto baudrate (only in CAN 2.0)
0 (Default)
1 Mbps
1
800 kbps
2
500 kbps
3
250 kbps
4
125 kbps
5
50* kbps
6
25* kbps
7
Reserved
8
Reserved
9
*Arbitration rates 25 kbps and 50 kbps are only used in CAN (CAN
2.0); An arbitration rate equal to or above 125 kbps is supported in
CAN FD (ISO CAN FD). For CAN FD (ISO CAN FD), the suggested ratio
of arbitration rate to data rate ranges from 1:1 to 1:8.
CAN FD Data Rate
Rotary Switch 2 Pin Position
5 Mbps
0
4 Mbps
1
3 Mbps
2
2 Mbps
3 (Default)
1 Mbps
4

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800 kbps
5
500 kbps
6
250 kbps
7
Reserved
8
Reserved
9
LED Indicators
There are 6 LEDs on the front panel of the ICF-1171I.
LED
Color
Description
PWR1 Green Steady ON: Power is being supplied to
PWR1
Off
Off: Power is NOT being supplied to PWR1,
or another type of other power error
PWR2
Green
Steady ON: Power is being supplied to
PWR2
Off
Off: Power is NOT being supplied to PWR2,
or another type of power error
CAN TX/RX
Green
(Flashing)
CAN bus port is transmitting or receiving
data
Off
No communication on CAN bus
(CAN) STATE
Green
CAN is operating normally or the auto
baudrate detection is successful
(According to the CAN definition, it’s called
the Error active state; Transmit error
counter or Receive error counter is below
127)
Red
(Flashing
once per
second)
Communication errors have occurred
(According to the CAN definition, it’s called
the Error passive state; Transmit error
counter or receive error counter equals or
exceeds 127). Error Passive becomes Error
Active when communication (transmission
and reception) returns to normal, in other
words, when both the TEC and the REC
decrease to less than or equal to 127.
To eliminate this error, check the following:
1. Check if the CAN cables are connected
correctly (CAN high: CAN_H, CAN low:
CAN_L)
2. Check the CAN bus termination
3. Check the status of the connected CAN
devices
4. Check whether
the baudrate settings of
the CAN devices are in the supported
range of the ICF-1171I’s baudrate
5. Check for possible interferences in the
environment
Resetting the ICF-1171I is not necessary in
this case until it becomes Bus-Off.