Internet communications using TCP/IP is increasing in the industrial sector. Using Ethernet for network in industrial area is appealing because the required cabling is already installed. The CAN-Ethernet Gateway from ICP DAS is a solution that enables CAN networks to be coupled together over the Internet/Ethernet, whereby remote monitoring and control is possible. The CAN-Ethernet Gateway controls networked communication and makes a transparent CAN-based application interface available to the user. The device supports a transparent, protocol-independent transfer of the CAN messages, thus allowing its implementation into a wide range of possible applications. Furthermore, the CAN-Ethernet Gateway can be used with various higher layer CAN protocols (e.g. CANopen, DeviceNet or other proprietary protocols). The following figure shows the application architecture for CAN-Ethernet Gateway . Furthermore, I-7540D also can be used as Ethernet to CAN/RS-232/485 Device Server. The Device Server is an appliance that network enables any device with a serial communication port. By virtue of its independent operating system, protocol independence, small size and flexibility, Device servers are able to meet the demand of virtually any network-enable application. Most devices don't have network ports. I-7540D allows those devices to become connected to the network.

CPU
CPU	80186, 80MHz or compatible
SRAM	512K Bytes
Flash	512K Bytes
EEPROM	16K Bytes
NVRAM	31 Bytes (battery backup, data valid up to 10 year)
RTC (Real Time Clock)	Yes
64-bit Hardware Serial Number	Yes
Built-in Watchdog Timer	Yes
Communication Interface
COM1	RS-232 (TXD, RXD, RTS, CTS, GND)
COM2	RS-485 (D2+, D2-)
CAN	One CAN port with two CAN bus connector interfaces (CAN_H, CAN_L)
Ethernet Port	10/100Base-TX Ethernet Controller (Auto-negotiating, Auto_MDIX, LED indicator)
COM Port Formats
Data bit	7, 8
Parity	Even, Odd, None
Stop bit	1
Baud-rate	115.2Kbps max.
CAN Port Formats
CAN Controller	Phillips SJA1000T CAN Controller
CAN Transceiver	Phillips 82C250 CAN Transceiver
Isolated	2500Vrms on CAN side
Baud-rate	1Mbps max.
Dimensions
I-7540D	122 x 72 x 33 mm
Operating Environment
Operating Temperature	-25°C to +75°C
Storage Temperature	-40°C to +80°C
Power
Protection	Power reverse polarity protection
Frame Ground for ESD Protection	Yes
Required Supply Voltage	+10 to +30VDC (non-regulated)
Power consumption	2.5W