M47 - Mezzanine Card with SSI Controller

M-Module

The M47 is an M-Module with an Serial Synchronous Interface for connection of up to 4 sensors to optically isolated SSI outputs. It is designed for industrial automation, medical computers, in-vehicle computers, and embedded computers in transportation.

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M47 SSI Controller

Main Features

4-channel 32-bit SSI
Serial Synchronous Interface
RS422A interface
Automatic communication
RAM-like double buffer user interface
Gray/binary decoding for each channel
Line-break detection
Absolute value data input
External Baud rate possible
Optical isolation for each channel
-40 °C to +85 °C versions

Technical Data

SSI Interface

4-channel Serial Synchronous Interface (SSI)
Optical isolation
RS422A interface

Data Transmission

Baud rate
- 62.5 kbaud, 125 kbaud, 250 kbaud, 500 kbaud
- Programmable for each channel
Word length
- 1..32 bits
- Programmable for each channel

Memory

16-byte RAM-like double buffer user interface

Interfaces

4 RS422 ports, optically isolated
Supply voltage for external sensors etc.: 5V (±10%), 400mA max. all channels summed up

Miscellaneous

Automatic communication
Gray and binary decoding, programmable for each channel
Sensor connection detection
Interrupt triggering on a new data transmission

Peripheral Connections

Via front panel on a shielded 25-pin D-Sub receptacle connector
Via carrier board (rear I/O)

M-Module Characteristics

A08, D08, INTA, IDENT

Electrical Specifications

Isolation voltage
- 500V DC between M-Module interface and external sensor interface
- Voltage between the connector shield and sensor interface is limited to 180V using a varistor; AC coupling between connector shield and sensor interface through 10nF capacitor
Supply voltage/power consumption: +5V (4.85V..5.25V), 150mA without external sensors connected, max. 850mA with 4 sensors connected
MTBF: 33,000h @ 50°C (derived from MIL-HDBK-217F)

Mechanical Specifications

Dimensions: conforming to M-Module Standard
Weight: 60g

Environmental Specifications

Temperature range (operation):
- 0..+60°C or -40..+85°C
- Airflow: min. 10m³/h
Temperature range (storage): -40..+85°C
Relative humidity range (operation): max. 95% non-condensing
Relative humidity range (storage): max. 95% non-condensing
Altitude: -300m to + 3,000m
Shock: 15g/11ms
Bump: 10g/16ms
Vibration (sinusoidal): 2g/10..150Hz

Safety

PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers

EMC

Tested according to EN 55022 (radio disturbance), IEC 61000-4-2 (ESD) and IEC 61000-4-4 (burst)

Software Support

MEN Driver Interface System (MDIS for Windows, Linux, VxWorks, QNX)
For more information on supported operating system versions and drivers see Software.