ICP DAS USA I-2532 User manual

I-2532 CAN to Fiber Converter User Manual (ver. 1.1, 2008/10/03) ------1
User’s Manual
Warranty
All products manufactured by ICP DAS are under
warranty regarding defective materials for a period of one
year from the date of delivery to the original purchaser.
Warning
ICP DAS assumes no liability for damages resulting
from the use of this product. ICP DAS reserves the right to
change this manual at any time without notice. The
information furnished by ICP DAS is believed to be
accurate and reliable. However, no responsibility is
assumed by ICP DAS for its use, or for any infringements
of patents or other rights of third parties resulting from its
use.
Copyright
Copyright 1997 by ICP DAS. All rights are reserved.
Trademark
The names used for identification only may be
registered trademarks of their respective companies.
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[phone] [email protected] www.bbrc.ru

I-2532 CAN to Fiber Converter User Manual (ver. 1.1, 2008/10/03) ------2
Tables of Content
Tables of Content...........................................................................................2
1Introduction.............................................................................................3
1.1 Features..........................................................................................4
1.2 Specifications.................................................................................4
1.3 Applications ...................................................................................4
2Technical data.........................................................................................5
2.1 Block Diagram................................................................................5
2.2 Appearance....................................................................................6
2.3 Pin Assignment..............................................................................7
2.4 LED Indicator .................................................................................8
2.5 Terminal Resistance Setting.........................................................8
2.6 Wire Connection ..........................................................................10
3Network Deployment............................................................................11
3.1 Definition......................................................................................11
3.2 Driving Capability ........................................................................11
3.3 Fiber Selection & Fiber Length...................................................12
3.4 Baud and Bus Length..................................................................13
4Dimension .............................................................................................14
ГК Атлант Инжиниринг – официальный представитель вРФ иСНГ
[phone] [email protected] www.bbrc.ru

I-2532 CAN to Fiber Converter User Manual (ver. 1.1, 2008/10/03) ------3
1 Introduction
Fiber optic transmission medium is a good material to protect data
transmission from EMI/RFI interference and has been used in harsh
environment extensively. On the other hand, CAN bus is famous in industrial
application. More and more users build CAN networks to communicate their
controllers, sensors and actuators. In order to solve the problem between
different transmission medium, I-2532 is specially designed for converting the
electrical CAN bus signal to fiber optic cables.
The fiber length between two I-2532s can be up to 1.4km (4593ft), it is
mainly decided by the cable attenuation of fiber and the CAN bus baud. I-2532
is the economic solution for applications which require protecting the data
transmission from electrical exposure, surges, lightning or chemical corrosion.
Generally, I-2532 can be used in CANopen, DeviceNet and all the other CAN
network which follows the ISO 11898-2 standard.
Figure 1-1 Application of I-2532
If users want to know more detail information about the I-2532, please visit
our website as follow:
http://www.icpdas.com/products/Remote_IO/can_bus/i-2532.htm
I-2532
CAN Device
CAN Device CAN Device
Fiber
Up to 1.4 Km
I-2532
CAN Device
62.5/125 µm multimode Fiber
Cable Attenuation of Fiber < 2.8 dB/Km
ISO 11898-2ISO 11898-2
ГК Атлант Инжиниринг – официальный представитель вРФ иСНГ
[phone] [email protected] www.bbrc.ru

I-2532 CAN to Fiber Converter User Manual (ver. 1.1, 2008/10/03) ------4
1.1 Features
Build-in switch for 120terminal resistance
Up to 100 CAN nodes on CAN Port
Transmission distance up to 1km on CAN Port
Transmission distance up to 1.4km on Fiber Port
Removable terminal block
Mountable on DIN Rail
1.2 Specifications
Fiber Port connector type: ST
Fiber Port operating wavelength: 850nm
Fiber type: 62.5/125m, multi-mode
Compatible with CAN specification 2.0A and 2.0B
Fully compatible with ISO 11898-2
Support baud up to 500Kbps, auto-baud detection
Propagation delay: <125ns
Power consumption: 0.5W
Power supply: +10VDC ~ +30VDC
Operating temperature: -25°C ~ +75°C
Humidity: 5% ~ 95%, non-condensing
Dimensions: 32.3mm x 99.0mm x 77.5mm
ESD、EFT、Surge Protection：
ESD
：+/- 4KV Contact Discharge
EFT ：+/- 1KV
Surge
：+/- 2KV
1.3 Applications
Factory Automation
Building Automation
Home Automation
Vehicle Automation
Control system
Monitor system
…
ГК Атлант Инжиниринг – официальный представитель вРФ иСНГ
[phone] [email protected] www.bbrc.ru

I-2532 CAN to Fiber Converter User Manual (ver. 1.1, 2008/10/03) ------5
2 Technical data
2.1 Block Diagram
The following figure is the block diagram illustrating the functions of the
I-2532 module.
Figure 2-1 Block Diagram of I-2532
+10VDC ~ +30VDC
Block Diagram of I-2532
CAN_L 120Ω
CAN_H
Physical CAN layer
TxD
RxD
Photo
Isolation
Fiber Driver
Power
Regulator
CAN Port Fiber Port
Power Port
ISO 11898-2
ГК Атлант Инжиниринг – официальный представитель вРФ иСНГ
[phone] [email protected] www.bbrc.ru

I-2532 CAN to Fiber Converter User Manual (ver. 1.1, 2008/10/03) ------6
2.2 Appearance
Figure 2-2 Appearance of I-2532
LED Indicators
Front View Bottom View
Terminal Resistance Switch
Fiber Port
CAN Port CAN_H
CAN_GND
CAN_L
N/A
1
2
3
4
5
6
7
8
RxD
TxD
POWER
TD
RD
F.G.
GND
+VS
T.R.
active
T.R.
inactive
Power Port
ISO 11898-2 standard
Connector Type: ST
Operating Wavelength: 850nm
Fiber Type:
Multi-Mode, 62.5/125m
+10 ~ +30VDC between
GND and +VS
ГК Атлант Инжиниринг – официальный представитель вРФ иСНГ
[phone] [email protected] www.bbrc.ru

I-2532 CAN to Fiber Converter User Manual (ver. 1.1, 2008/10/03) ------7
2.3 Pin Assignment
The pin assignment of CAN port, fiber port and power connector of the
I-2532 are shown in the following tables.
Table 2-1 Pin Assignment
Port Name Description
CAN_L CAN_Low, signal line of CAN Port.
CAN_H CAN_High, signal line of CAN Port.
CAN CAN_GND
CAN_Ground, ground voltage level of CAN Port.
TXD Transmit optic data.
Fiber RXD Receive optic data.
+VS Voltage Source Input. +10VDC ~ +30V VDC.
GND Power Ground.
Power F.G. Frame Ground.
Sometimes, the CAN_GND voltage level of different CAN devices on a
CAN bus system are not equal. In this case, it could cause some problems and
derogate the system stability. There is one way to relieve this situation; users
can connect the CAN_GND of different CAN devices each other to balance the
voltage level of CAN_GND.
Electronic circuits are always influenced by different levels of
Electro-Static Discharge (ESD), which become worse in a continental climate
area. F.G. provides a path for conducting the ESD to the earth ground.
Therefore, connecting the F.G correctly can enhance the capability of the ESD
protection and improve the module’s reliability.
Wiring of CAN_GND and F.G. is not necessary; users can modify the
configuration of wiring according to real applications.
ГК Атлант Инжиниринг – официальный представитель вРФ иСНГ
[phone] [email protected] www.bbrc.ru

I-2532 CAN to Fiber Converter User Manual (ver. 1.1, 2008/10/03) ------8
2.4 LED Indicator
When the I-2532 is active, the POWER LED will display with red light.
Transmitting/receiving one message to/from fiber cable will flash the TD/RD
LED once. The TD/RD LED may always be turned on if there are a lot of
messages transmitted on fiber cable.
Table 2-2 LED Indicator
POWER LED
(Red Light) TD LED (Green Light) RD LED (Green Light)
on module
active flashing messages transmitting
flashing messages
receiving
off module
inactive
off no message
transmitting
off no message
receiving
2.5 Terminal Resistance Setting
The I-2532 includes one build-in 120terminal resistance, users can
decide if the terminal resistance is enabled or not. The switch for terminal
resistance is on below of power connector.
Figure 2-3 Location of Terminal Resistance Switch
The following switch statuses present the condition if the terminal
resistance is active (default) or inactive.
Figure 2-4 Adjustment of Terminal Resistance
Active
(Enable) Inactive (Disable)
termination
resistor switch
ГК Атлант Инжиниринг – официальный представитель вРФ иСНГ
[phone] [email protected] www.bbrc.ru

I-2532 CAN to Fiber Converter User Manual (ver. 1.1, 2008/10/03) ------9
In the CAN bus specifications, the bus line of CAN_H and CAN_L must be
terminated by a terminal resistance (RT) for proper operation. The equivalent
resistance between CAN_H and CAN_L should be 60. There are some
examples below.
Figure 2-5 Terminal Resistance
Fiber
Case1: RT= 120ΩCase2: RT= 180Ω
RT
CAN_H
RT
CAN_L
Case3: RT1 = 180Ω, RT2 = 120ΩRT
RT
CAN_H
RT
CAN_L
CAN_H
RT1
CAN_L
RT1
RT1 RT2
RT2
I-2532 I-2532
ГК Атлант Инжиниринг – официальный представитель вРФ иСНГ
[phone] [email protected] www.bbrc.ru

I-2532 CAN to Fiber Converter User Manual (ver. 1.1, 2008/10/03) ------10
2.6 Wire Connection
The wire connection of I-2532 is displayed below.
Figure 2-6 Wire Connection of I-2532
The I-2532 has a metallic board attached to the back of the plastic basket.
This metallic board and the F.G. pin of power connector are interconnected
inside the I-2532. When users mount the I-2532 onto a metal DIN rail, users
can connect the DIN rail to Earth Ground to replace connecting the F.G. pin of
power connector.
Figure 2-7 Metallic Board at Back of I-2532
CAN_H
CAN_L
CAN_GND
Earth
Power GND
+10VDC ~ +30VDC
CAN_H
CAN_L
CAN_GND
Earth
Power GND
+10VDC ~ +30VDC
Tx Tx
Rx Rx
Fiber Port
CAN Port
(
ISO
11898
-
2
)
Power Port
InterconnectingMetallic Board
F.G.
ГК Атлант Инжиниринг – официальный представитель вРФ иСНГ
[phone] [email protected] www.bbrc.ru