ICP DAS has provided a lot of UART/CAN product solutions which are widely recommended in the market. These UART/CAN converters can help users to implement the communication between RS-232 and CAN network. In order to cater for costing requirement, we provide a new solution of RS-232/CAN converter-tM-7530. The tM-7530 is a tiny RS-232/CAN to fit narrower environment as a result of its small size. It has isolation on power side and on CAN bus side and its performance is faster than other RS-232/CAN module. The function of tM-7530 can full compatibly with I-7530 and I-7530T. Besides, it provides new function such as listen only. User can use this function to listen CAN bus messages and error detection. According to above features, tM-7530 is an economical and practical RS-232/CAN converter solution.



Request For Quotation


Moreover, we expand the functionalities of tM-7530 for some special application. In pair connection mode, tM-7530 can be used to connect PC with other RS-232 devices at the same time. The application architecture may be as follows.



  • Control System
  • Building Automation
  • Factory Automation
  • Distributed data acquisition





  • Compatible with CAN specification 2.0A and 2.0B
  • Fully compatible with ISO 11898-2 standard
  • Support various CAN baud rate from 10K bps to 1M bps
  • Support user-defined CAN baud rate
  • Support various RS-232 baud rate from 110 bps to 230400 bps
  • External option 120 Ω terminal resistor
  • Software configurable CAN and RS-232 communication parameters
  • Power, data flow and error indicator for CAN and RS-232
  • Watchdog inside
  • Support pair connection mode
  • Software buffer on CAN bus side and RS-232 side
  • Support user-defined end of characters on pair connection mode
  • Support listen only mode
  • Support time stamp response on RS-232 side



Software Utility Features

  • CAN bus baud rate configuration
  • CAN bus acceptance filter configuration
  • CAN 2.0A or CAN 2.0B specific selection
  • RS-232 baud rate and data format configuration
  • Communication mode(normal , pair connection , and listen only mode ) configuration
  • Easy test to transmit/receive CAN messages
  • CAN bus data flow detection
  • Group Send CAN messages for special application
  • Trigger event setting for advance received CAN messages
  • Integrate all CAN bus converter utility of ICP DAS


Hardware Specifications

CAN Interface
Transceiver NXP TJA1042
Channel number 1
Connector Spring type connector
Baud Rate (bps) 10 k, 20 k, 50 k, 100k, 125 k, 250 k, 500 k, 800 k, 1 Mbps (allow user-defined CAN baud rate)
Isolation 3000 VDC for DC-to-DC, 2500 Vrms for photo-couple
Terminal Resistor External option terminal resistor
Specification ISO-11898-2, CAN 2.0A and CAN 2.0B
RS-232 Interface
Connector 9-pin female D-Sub (TxD, RxD, GND, N/A for others)
Baud Rate (bps) 110, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400
Data bit 5, 6, 7, 8
Stop bit 1, 2
Parity bit None, Even, Odd
Round LED ON LED: Power and Data Flow; ERR LED: Error Status
Protection Power reverse polarity protection, Over-voltage brown-out protection
Power Consumption 1W
Installation DIN-Rail
Dimensions 52mm x 86mm x 32mm (W x L x H)
Operating Temp. -25 ~ 75 ℃
Storage Temp. -30 ~ 80 ℃
Humidity 10 ~ 90% RH, non-condensing

Hardware Structure

Wire Connection

Pin Assignment

Pin 3-wire RS-232
1 N/A
2 RS-232 TxD
3 RS-232 RxD
4 N/A
5 RS-232 GND
6 N/A
7 N/A
8 N/A
9 N/A
Pin Power
1 +Vs
3 F.G.


Performance Test

Performance test: from CAN to RS-232(115200, n, 8, 1). Unit: Frames Per Second(FPS).
Baud rate 1000K 800K 500K 250K 125K 50K 20K 10K
CAN 2.0A 519 519 523 522 522 416 176 88
CAN 2.0B 423 423 426 425 426 353 146 74
Performance test: from RS-232(115200, n, 8, 1) to CAN. Unit: Frames Per Second(FPS).
Baud rate 1000K 800K 500K 250K 125K 50K 20K 10K
CAN 2.0A 523 524 523 522 520 451 180 90
CAN 2.0B 425 426 427 426 427 377 150 75

Ordering Informations

tM-7530 CR
Intelligent tiny RS-232/CAN converter (RoHS)