TQMC802: VITA 93.0 QMC Module with 4 Isolated CAN FD Channels

Four independent CAN FD interfaces in a compact QMC module

The TQMC802 expands the TEWS Technologies embedded I/O portfolio with a QMC mezzanine dedicated to CAN FD communications.

The single-width VITA 93.0 module measures 26 × 78.25 mm and provides four independent CAN channels. Host connectivity is compliant with PCI Express Revision 2.1, while FRU hardware definition information is stored in an onboard EEPROM.

For a wider overview of this mezzanine ecosystem, ECRIN Systems also presents the VITA 93 QMC portfolio.

CAN FD up to 5 Mbps with Classic CAN support

All four channels support CAN FD, CAN 2.0 Part A and CAN 2.0 Part B.

Transfer rates are programmable up to 5 Mbps for CAN FD. Each channel can transmit, receive and filter CAN FD, standard and extended messages.

Classic CAN backward compatibility allows the module to be used in systems where existing CAN nodes operate alongside CAN FD devices.

Four galvanically isolated CAN channels

Each CAN interface is galvanically isolated from the host system and from every other CAN channel.

This enables four electrically independent CAN networks to be connected to the same embedded computer while keeping the individual buses separated.

The TQMC802 can therefore provide multi-channel CAN connectivity for industrial applications and embedded transportation and energy systems using CAN or CAN FD communications.

ISO 11898-2 physical interfaces

Each CAN FD channel provides a physical interface compliant with ISO 11898-2.

The module uses isolated fault-protected CAN transceivers supporting data rates up to 5 Mbps.

Bus termination is individually configurable for every channel, enabling each CAN interface to be adapted to its actual position within the network.

Independent transmit, receive and message filtering

Each channel independently provides:

• CAN message transmission;
• CAN message reception;
• message filtering;
• standard-message support;
• extended-message support;
• CAN FD or Classic CAN operation.

This enables the TQMC802 to act as the CAN interface between an embedded host and several separate CAN networks.

Software support

The TDRV025-SW software family provides driver support for:

• Green Hills INTEGRITY;
• VxWorks;
• Windows;
• Linux;
• QNX Neutrino.

This provides support for both general-purpose and real-time embedded operating systems.

Air- and conduction-cooled variants

Two versions are available:

• TQMC802-10R-A – air cooled
• TQMC802-10R-H – conduction cooled

Both provide the same four isolated CAN FD channels and operate from -40°C to +85°C.

Storage temperature is also -40°C to +85°C, with 5–95% non-condensing humidity. Current MTBF for the TQMC802-10R is 1,700,000 hours.

These variants can be integrated into Defense, Aerospace & Security applications as well as industrial and transportation platforms requiring CAN FD communication.

From CAN FD connectivity to a complete QMC I/O subsystem

The TQMC802 requires a compatible QMC carrier or host platform.

For CompactPCI Serial systems, the TCPS210 supports up to three single-width QMC modules, with QMC I/O routed to rear connectors P2, P3 and P4.

For PCI Express systems, the TPCE210 dual-QMC carrier provides two single-width QMC sites.

The TVNX210 provides another integration path by supporting two QMC modules in a compact VNX+ 19 mm platform.

This makes it possible to combine CAN FD with other QMC functions such as Ethernet, serial communications, analogue acquisition or digital I/O within the same embedded system.

For wider system requirements, the TQMC802 can be integrated within ECRIN Systems' COTS and Modified COTS approach, followed by production and system integration according to project requirements.

Product versions