is rail mountable and transmits CAN signals between subsystems.

Special Features


  • Connection of CAN subnetworks with differing data rates
  • Filtering and buffering of data traffic
  • Support of 11 bit and 29 bit identifiers
  • Increase of the system extension
  • Microcontroller NXP LPC2119 with 2 internal CAN controllers
  • Version HS/LS with one transceiver PCA82C251 and one transceiver TJA1054
  • Rail mountable



The rail mountable CAN/CAN gateway CG-ARM7 transmits CAN signals between subsystems. CG-ARM7 allows a flexible design of the wiring topology. Star and tree structures as well as extensive line structures can be realised. Among the available functions are data rate adaption, message filtering as well as identifier conversion between the coupled busses. The restriction of the maximum data rate depending on cable length for single CAN segments can be abolished for the over-all system by use of CG-ARM7. CG-ARM7 obtains its potential through the use of a 32 bit microcontroller with 48MHz clock. High speed processing and low latencies allow the use with high data rates and busloads. Cost efficient series applications are particularly promoted by use of CG-ARM7. The configuration of the device functions can take place either through CAN or through the built-in RS232 interface. Download software for the configuration is available for Windows PCs as well as Linux PCs. CG-ARM7 is available in version HS/LS allowing the conversion of high speed to low speed CAN. For special tasks, like modification of the data content of the CAN messages, we over a development kit to write custom specific firmware for CG-ARM7.

Ordering information

Equipment / Variants



Galvanic separation: None

Number of channels: 2 Channel

CAN Physics: high speed

Structural shape: Mounting rail

Protocol: CAN



Galvanic separation: None

Number of channels: 2 Channel

CAN Physics: high/low

Structural shape: Mounting rail

Protocol: CAN


Technical Data

Layout and Connection

The connection to the CAN busses is achieved via pluggable terminals. Besides the CAN signals the clamps also carry the supply voltage for CG-ARM7. The following table shows the pin assignment of the internally connected interfaces.

1+24VSupply voltage
2, 3, 6GNDGround
4CAN1_HCAN1 signal line (dominant high)
5CAN1_LCAN1 signal line (dominant low)
7CAN2_HCAN2 signal line (dominant high)
8CAN2_LCAN2 signal line (dominant low)

Limiting Values

Storage temperature-20+80°C
Operating temperature0+60°C
Supply voltage-100+35V
Voltage on bus connections-30+30V
Admissible power consumption (at 60°C)n.s.2000mW

Any (also temporary) stress in excess of the limiting values may cause permanent damage on CG-ARM7 and other connected devices. Exposure to limiting conditions for extended periods may affect the reliability and shorten the life cycle of the device.

Nominal Values

Current consumption (running idle)n.s.40n.s.mA
Supply voltage102430V

All values, unless otherwise specified, refer to a supply voltage of 24V and an environmental temperature of 20°C.

Scope of Delivery

Related Products


CAN Gateway CG-ARM7/D/E

Serial/CAN-Gateway SerCAN

Further Information

CAN Gateway vs. Repeater

International Sales

For US/Canada/Mexico sales, please contact: Traquair Data Systems, Inc. (;; Ph: +1 607 266 6000