Diamond Systems DS-MPE-CAN2L Rugged Dual CAN 2.0 Port PCIe MiniCard Module with Latching Connectors

Joining a CAN network from a small embedded host should not mean adding a module to the stack. The DS-MPE-CAN2L is a dual CAN 2.0 MiniCard from Diamond Systems that brings two isolated CAN 2.0B ports to any host with a full-size PCIe MiniCard socket, built for embedded and OEM equipment in vehicles and outdoor installations.

The card implements a CAN protocol controller to the CAN 2.0A and 2.0B specifications, running at up to 1 Mbps with standard 11-bit and extended 29-bit identifiers. It uses a multi-master bus configuration and handles error management without burdening the host processor. For busy networks the DS-MPE-CAN2L offers 31 receive buffers, 16 standard transmit buffers plus one high-priority buffer, 16 programmable 29-bit acceptance filters and programmable interrupts.

The two ports are isolated 500 V port to port and input to output, with jumper-selectable line termination and bias, and leave the card on latching connectors, with two I/O cables included. The driver supports dual-independent and dual-redundant modes, and a listen-only mode enables bus traffic analysis and automatic bit-rate detection. For PC/104 stacks the JANUS-MM-LP modules, such as the JNMM-2L-XT, add isolated CAN with digital I/O, and the DS-MPE-OPT4485 adds isolated RS-485 in the same MiniCard form factor.

Power is 3.3 V DC at 0.462 W from the MiniCard socket. The DS-MPE-CAN2L operates from -40 to 85 °C at 5 to 95% humidity, non-condensing, with a quoted MTBF of 1,583,210 hours at 20 °C, and Diamond Systems can custom-configure it with 0 ohm resistors in place of jumpers for high-vibration use. Drivers support Windows 7, XP and Linux 2.6 kernels.