I-7532 Two-channel CAN Bus Isolated Bridge

I-7532 Two-channel CAN Bus Isolated Bridge
Two-channel CAN Bus Isolated Bridge
I-7532
The I-7532 is a local CAN bridge used to establish a connection between two CAN bus system in a
CAN network. The I-7532 stands by itself connecting adjacent segments together as in the case of a
CAN repeater (I-7531). Not just like I-7531, I-7532 has another three important features. First, the
transmission distance limitation of the CAN bus system on each side of I-7532 are independent,
which means the total network distance can be extended. Second, when some error (e.g. bit error)
occurs in the CAN bus system on one side of I-7532, the system on another side can still work
correctly. Finally, the baud rate of two channels on I-7532 can be different for highly flexibility.
Pin Assignments
82C250 CAN transceiver
2500 Vrms photo coupler isolation on CAN side
3 kV galvanic isolation among the power supply and
2 CAN channels
Support both CAN 2.0A and CAN 2.0B
Fully compatible with the ISO 11898-2 standard
Build-in jumper to select 120Ω terminal resister
Watchdog inside
Up to 100 CAN nodes on each channel
768-frame buffer for each CAN channel
Adjustable CAN bus baud rate from 5Kbps to 1Mbps
or programmable user-defined baud rate
Support CAN bus acceptance filter configuration
Block Diagram
Baud Rate Selection
Switch Value
Baud [bps]
Switch Value
Baud [bps]
Switch Value
Baud [bps]
Switch Value
Baud [bps]
1-11
0
4
1
5k or
User-defined
CAN baud
5
40 k
50 k
80 k
100 k
8
9
A
B
125 k
200 k
250 k
400 k
C
D
E
F
500 k
600 k
800 k
1M
Config
Mode
2
3
10 k
20 k
6
7
CAN Interface
Controller
Transceiver
Channel number
Connector
Microprocessor inside with 72MHz
NXP 82C250
2
4-pin screwed terminal block (CAN_GND, CAN_L, CAN_SHLD, CAN_H)
Adjustable CAN bus baud rate from 5Kbps to 1Mbps or
programmable user-defined baud rate
3000 VDC for DC-to-DC, 2500 Vrms for photo-couple
Jumper for 120 Ω terminator resistor
ISO-11898-2, CAN 2.0A and CAN 2.0B
Baud Rate (bps)
Isolation
Terminator Resistor
Specification
Power
Power supply
Protection
Power Consumption
Unregulated +10 ~ +30 VDC
Power reverse polarity protection, Over-voltage brown-out protection
2W
Mechanism
Installation
Dimensions
DIN-Rail
72mm x 33mm x 122mm (W x L x H)
Environment
Operating Temp.
Storage Temp.
Humidity
-25 ~ 75 ℃
-40 ~ 80 ℃
5 ~ 95% RH, non-condensing
LED Indication
PWR LED
Comm. Mode
Config. Mode
Power off
ON
FLASH
OFF
Rx LED
Flashing
ON
(config. mode)
OFF
RST & Err Clear Button
Transmission
Configuration via
this CAN Ch.
Bus idle
ERR LED
Flashing
(100ms)
Flashing
(1sec)
ON
OFF
Transmission
Fail
Buffer
Overflow
Bus off
No error
Application
Reset & Error Clear button
Click
Push (3sec)
Error clear
Module reset
Ordering Information
I-7532 CR
Two-channel CAN Bus Isolated Bridge (RoHS)
1-12
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