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EMM-DIO4M-XT

PC/104 4-port RS-232/422/485 with 48 DIOs

  • Description
  • Specifications
  • Ordering Guide

The EMM-DIO4M-XT is a PC/104 form factor serial module offering 4 programmable serial ports. The module is based on a ST16C554 quad UART with 16-byte TX/RX FIFOs. Programmable features include serial port protocols, line termination, slew rates, enable / shutdown, base addresses, and interrupt status register address. The EMM-DIO4M-XT fits a wide variety of rugged and on-vehicle embedded serial I/O application needs.

EMM-DIO4M-XT also offers 48 programmable digital I/O lines. Configurable features include the digital I/O base address, interrupt level, output mode, and voltage level selection. The lines can be set for pull-up / pull-down resistors in two banks of 24 digital I/O lines each.

The EMM-DIO4M-XT was designed with harsh applications in mind including latching connectors to further improve reliability. Extended temperature operation of -40°C to +85°C is tested and guaranteed. The module is compatible with MIL-STD-202G shock and vibration specifications.

Number of seriaB265:C281 4
Protocols RS-232/422/485 programmable
Maximum baud rate RS-232:  1Mbps
RS-422/485:  10Mbps
UART ST16C554 quad UART with 16-byte Tx/Rx FIFOs
Transceivers SP335E multiprotocol transceivers, one per port
Programmable serial features Slew rate
Enable / Shutdown
Base address
Termination Jumper programmable RS-422/485 line termination
ESD +/-15KV protection on each port
Digital I/O 48 programmable digital I/O
Programmable DIO features Pull up/down resistors in 2 banks of 24 lines each
Base address
Interrupt levels
Output mode
Voltage level
Connectors Latching connectors for increased ruggedness
Input power +/-5VDC +/-5%
Power consumption TBA
Software drivers WES7, XP, 2000 & Vista
Linux 2.6.16, 2.6.31 and 2.6.32
Operating Temperature -40°C to +85°C
Humidity 5%~95% non-condensing
Dimensions 90 x 96 mm
Model Description
EMM-DIO4M-XT PC/104 4-port RS-232/422/485 with 48 DIOs