Manual USB-FLEXCOM4
17
Chapter 7: Specifications
Communications Interface
• Serial Ports:
COM A through COM D via four male DB9 connectors
• Character length:
5, 6, 7, or 8 bits
• Parity:
Even, odd or none
• Stop Interval:
1, 1.5, or 2 bits
• Serial Data Rates:
Up to 921.6k for RS-422 and RS-485 modes, asynchronous
RS-232 speeds up to 230.4kbps.
• Receiver Input Sensitivity: +200 mV, differential input
• Common Mode Rejection: +12V to -7V
• Transmitter Output Drive: Up to 60 mA, with thermal shutdown
Bus Type
USB 2.0 High-Speed
• USB Connector:
Type B, high-retention
• Embedded USB
5-pin header, Molex part number 53047
Mating connector housing is Molex part number 51021 0500
Environmental
• Operating Temperature: 0 °C. to +60 °C
(Extended operating temperature version -40°C to + 85°C)
• Storage temperature:
-50 °C. to +120 °C
• Humidity:
5% to 95%, non-condensing
• Power Required:
Model USB-FLEXCOM4
5VDC at ~110mA
(plus loads up to an additional
240mA) from USB
Model USB-COM232-4A
5VDC at ~80mA with no load
(with all ports communicating
~145mA)
-WI Option
7VDC to 30VDC via DC power jack
or Molex DC power connector
• Size:
Board Dimension: 3.550 x 3.775
” (PC/104 size & mounting)
Box Dimension: 4.00 x 4.00 x 1.25 inches