User`s manual

58 • Extension Modules
5.7 PMC-7841G
 5.7.1 Features
The PMC-7841G is a Dual-Port Isolated CAN Interface Card with the following
features:
• Two independent CAN network operation
• Bridge support
• Compatible with CAN specification 2.0 parts A and B
• Optically isolated CAN interface (up to 2500 Vrms isolation protection)
• Direct memory mapping to the CAN controllers
• Up to 1Mbps programmable transfer rate
 5.7.2 Specifications
PMC-7841G Specification Table
Ports 2 CAN channels (V2.0 A, B)
CAN Controller SJA1000
CAN Transceiver 82c250
Signal Support CAN_H, CAN_L
Isolation Voltage 2500 Vrms
Operation Temperature
0 – 60° C
Storage Temperature
-20° – 80° C
Humidity 5% – 95% non-condensing
IRQ Level Set by Plug and Play BIOS
I/O port address Set by Plug and Play BIOS
Power Consumption
(without external devices)
400mA @5VDC ( Typical)
900mA @5VDC ( Maximum)
 5.7.3 Pin Assignment
Pin CAN
1 NC
2 CAN_L
3 Shield
4 NC
5 Case GND
6 NC
7 CAN_H
8 NC
9 NC