ACCES I/O M.2-COM-4SM 4-Port Serial M.2 Card Supporting RS-232, RS-422 & RS-485

ACCES I/O Official Distributor
ACCES I/O Official Distributor
Model No:
M.2-COM-4SM
Highlights:
  • M.2 2260/2280 size with B & M keys and Latching I/O Connectors
  • Four Software-Selectable Serial Types: RS-232, RS-422, And RS-485 (2Wire & 4Wire)
  • High Performance 16C950-Class UARTs With 128-Byte FIFO For Tx And Rx Buffering
  • Supports Data Communication Rates To 921.6Kbps In RS232 – As High As 3Mbps In Differential Modes – 10Mhz With Custom Crystal Option
  • Port-By-Port Field Selectable Termination For RS422 & RS485 Applications
  • Virtually Any Custom Baud Rate May Be Configured By The User Via Register Settings, No Custom Oscillator Needed
  • ±15kV ESD Protection On All Signal Pins
  • Supports CTS, RTS, And 9-Bit Data Mode, Half- and Full-Duplex communications
  • RoHS And Industrial Temp (-40°C To 85°C) Both Standard
  • Support for Wind River VxWorks (call for ordering information)
  • Designed, made, supported, and manufactured in the USA
QTY:
Overview

The ACCES I/O M.2-COM-4SM features high performance 16C950-class UARTs. This card has 4-Ports and each port is capable of communication speeds up to 921.6kbps in RS-232 and has 128-byte deep transmit and receive FIFOs. Large FIFOs protect against data loss in multitasking operating systems, reduce CPU utilization, and improve data throughput, while reducing or eliminating inter-character or inter-packet pauses. The advanced integrated circuit with pre-scalar supports a wide variety of custom baud rates, and any rates not otherwise achievable can be supported via a custom factory-installed crystal oscillator. RS-232, RS-422, or RS-485 can be software selected, per port, and the selection is stored in non-volatile memory for future use. If you don’t need that much flexibility you can order versions with only RS422/485 or even pure RS232. The RS232 ports provided by the card are 100% compatible with every other industry-standard serial COM device, supporting TX, RX, RTS, and CTS. RS422 mode uses the same transceivers as the RS-485 specification, allowing perfect 4-wire RS-422 and RS-485 compatibility – and the device supports full-duplex RS-485 4-wire.

Main Features
M.2 Card 2260/2280 size
I/O Hirose DF57-6P-1.2V 6-pin, latching
Mating Hirose DF57H-6S-1.2C
Serial Ports 4
Serial Type RS-422, RS-485, and RS-232
UART Quad 16C950
FIFO 128-byte transmit & receive
Buad Rates up to 921.6k baud in RS-232 up to 3MBaud in differential modes advanced-prescaler allows a wide variety of unusual baud rates to be achieved. Up to 10Mbps via custom crystal option
Character Length 5, 6, 7, 8 bits (contact factory for assistance with 9-bit data)
Parity Even, Odd, None, Mark, Space
Stop Interval 1, 1½, 2 bits
Flow Control RS-232: RTS/CTS, Xon/Xoff, None
RS-422, RS-485: Xon / Xoff, None
Temperature Operating: -40° to 85°C
Storage: -65° to 150°C
Humidity 5% to 95%, non-condensing
Power Required +3.3VDC @ 1.6W (typical)
ESD Protection ±15kV on all signal pins (IEC 61000)
Weight 6.0 grams
Size Length: 60mm/80mm
Width: 22mm
Ordering Info
M.2-COM-4SM 4-Port, RS232, RS-422 and RS-485 M.2 Card
M.2-COM-2SM 2-Port, RS232, RS-422 and RS-485 M.2 Card
M.2-COM-4S 4-Port, RS-422 and RS-485 M.2 Card
M.2-COM-2S 2-Port, RS-422 and RS-485 M.2 Card
M.2-COM232-4 4-Port, RS232 M.2 Card
M.2-COM232-2 2-Port, RS232 M.2 Card
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