MOXA ICF-1170I Series Field to Fiber Converter Installation Guide

: June 6, 2024
: MOXA

MOXA ICF-1170I Series Field to Fiber Converter Installation Guide

Overview

**** Introduction

The ICF-1170I series is a CAN-to-fiber optic 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.
To connect two CAN devices with fiber optic cable, two ICF-1170I series converters are required.

Why Convert CAN to Fiber?

• IMMUNITY FROM ELECTRICAL INTERFERENCE

Fiber is not affected by electromagnetic interference or radio frequency interference; consequently it provides a clean communication path and is immune to crosstalk.

• INSULATION

Optical fiber is an insulator; the glass fiber eliminates the need for using electric current as the communication medium.

• SECURITY

Optical fiber provides better security compared to traditional electrical signals transmitted through a wire or radio waves transmitted through the air. Since the light rays travel down the center of the fiber, it is extremely difficult for them to escape. In addition, it is nearly impossible to tap into a fiber optic cable, and even if a tap is successful, it is possible to detect the tap by monitoring the optical power received at the termination point.

• RELIABILITY AND MAINTENANCE

Fiber is immune to adverse temperature and moisture conditions, does not corrode or lose its signal, and is not affected by short circuits, power surges, or static electricity.

Fiber Test Mode

The ICF-1170I supports a special feature called Fiber Test Mode , which is easily activated with a DIP switch on the ICF-1170I’s outer panel.
Fiber Test Mode can be used to test the fiber cable between two
ICF-1170I units and provides a simple way to determine if the fiber cable is transmitting data correctly.
When in Fiber Test Mode , the fiber transceiver (TX) will send out a data signal continuously and the “Fiber TX” LED will light up. On the other side of the connection, when the ICF-1170I fiber transceiver (RX) receives the data signal form the TX side, the “Fiber RX” LED will light up.

Alarm Contact Output

The ICF-1170I 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-1170I series, and choose the correct relay output when connecting the alarm.

Features

Transmission distance up to 2 km
Convert CAN signals to fiber and fiber to CAN signals
CAN transfer rate up to 1 Mbps
Dual power inputs for redundancy
DIP switch for 120 Ω terminal resistance
DIP switch for fiber test mode
Wide temperature range model available for -40 to 85°C environments

Package Checklist

Before installing the ICF-1170I series, verify that the package contains the following items:

ICF-1170I series CAN-to-fiber Converter
Quick Installation Guide (printed)
Warranty card

NOTE: Please notify your sales representative if any of the above items are missing or damaged.

Mounting Dimensions (Unit: mm)

ICF-1170I-M-ST

Top View

Front View

ATTENTION

Electrostatic Discharge Warning!
To protect the product from damage due to electrostatic discharge, we recommend wearing a grounding device when handling your ICF-1170 series.

Mounting

The aluminum DIN-rail attachment plate should be fixed to the back panel of the ICF-1170I series when you take it out of the box. If you need to reattach the DIN-rail attachment plate to the ICF-1170I, make sure the stiff metal spring is situated towards the top, as shown in the figures below.

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-1170I series from the DIN-rail, simply reverse Steps 1 and 2 above.

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.

Switch Settings

There are two DIP switches on the front panel of the ICF-1170I series.

120 Ω Terminator	Switch 1
Enable	ON
Disable	OFF (default)
Fiber Test Mode	Switch 2
---	---
Enable	ON
Disable	OFF (default)

LED Indicators

There are 4 LEDs on the front panel of the ICF-1170I.

LED	Color	Function
PWR 1	Green	Steady ON: Power source 1 is ON.
PWR 2	Green	Steady ON: Power source 2 is ON.
Fiber Tx	Green	When sending CAN data to the fiber port.
Fiber Rx	Orange	When receiving CAN data from the fiber port.

Typical CAN Application

Transmission Length

The maximum length for CAN fiber is 2 km (depending on the data rate and the protocol used). This table below suggests the maximum fiber lengths at certain baud rates as per ISO-11989-2 while using no more than 3m of the CAN Bus cable in the CAN bus network

Baud Rate	Fiber Length
1000 kbps	10 m
500 kbps	100 m
250 kbps	250 m
125 kbps	400 m
50 kbps	1000 m
10 kbps	2000 m

NOTE The transmission distance is limited by the signal rate, as stated in the ISO 11898-2 standard

Specifications

CAN Communication

CAN Bus Interface| ISO 11898-2, Terminals (CAN_H, CAN_L,

CAN_GND)

Temperature

| 0 to 60°C (32 to 140°F), 5 to 95 % RH

-40 to 85°C (-40 to 185°F) for -T model

Storage Temperature| -40 to 85°C (-40 to 185°F), 5 to 95 % RH
Power
Input Power Voltage| 12 to 48 VDC dual power input for redundancy
Alarm contact| 1 normal open/close output with current-carrying

capacity of 1 A@24 VDC

Mechanical Specifications
Dimensions| 30.3 × 70 × 115 mm
Material| Aluminum (1 mm)
Gross Weight| 135 g