Product data

112
M-Module Mezzanine I/O
MEN M-Module Mezzanine I/O
M77 – Quad RS232/423 to RS422/485 UART
■ 4x 16C954 high-performance UARTs
■ Serial data rates up to 1.152 Mbits/s
■ Software programmable
■ Full and half duplex on 4 channels
■ Optically isolated from the system
and from each other
Quad RS232/423/485/422 Interface
■ All 4 channels with 4 lines
(no handshake lines)
■ All 4 channels optically isolated from the
system and from each other
OX16C954 Communication Engine
■ Software-programmable serial data rates
up to 1.152 Mbaud full duplex/half duplex
on 4 channels
■ 128 bytes of FIFO for each transmitter/receiver
■ Detection of bad data in receiver FIFO
■ Selectable arbitrary trigger levels for receiver
and transmitter FIFO interrupts
■ Improved automatic flow control using
selectable arbitrary thresholds
■ Automated flow control using DSR#/DTR#
■ Independent software reset of each channel
■ Readable FIFO filling levels
■ Optional generation of RS485 buffer
enable signal
■ Transmitter and Receiver can be disabled
■ 5..8 bits per character plus parity
■ Parity mode: odd, even, no or forced
■ Stop bits: 1, 1.5 or 2
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 isolated and digital side
■■ 180V DC between the channels
■■ Voltage between the connector shield and
isolated ground is limited to 180V using a
varistor; AC coupling between connector
shield and isolated ground through 47nF
capacitor
■ Supply voltage/power consumption:
+5V (4.85V..5.25V), 200mA typ.
■ MTBF: 280,000h @ 50°C
Mechanical Specifications
■ Dimensions: conforming to
M-Module Standard
■ Weight: 67g
Environmental Specifications
■ Temperature range (operation):
■■ 0..+60°C or -40..+85°C
■■ Airflow: min. 10m
3
/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/0.33ms, 6g/6ms
■ Vibration: 1g/5..2,000Hz
Safety
■ PCB manufactured with a flammability rating
of 94V-0 by UL recognized manufacturers
EMC
■ Tested according to EN 55022 / 1999-05
(radio disturbance) and EN 55024 / 1999-05
(immunity) with regard to CE conformity
Software Support
■ Linux driver
■ Windows NT driver
■ VxWorks driver
■ OS-9 SPF driver