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4.2 ELECTRICAL
All figures quoted are typical parameters @ 25°C (77°F)
RS-232 SIGNALS: Typical output level ±5.5V (open circuit voltages)
TX, RX, CTS and RTS are supported on each port
UART CLOCK SPEED: 1.8432MHz, max baud rate 115.2K bps
ISOLATION: Isolation is defined between ISOGND and host 0V supply (metal
case of card and cable shield braid) and can be up to +/-50V, DC
to 60Hz. The two ports share a common ground (ISOGND): no
isolation exists between the two ports
SCAVENGED POWER: The isolation driver circuit will only supply enough power to
guarantee correct RS-232 signal operation into 3K-ohm loads on
TX and RTS. Using terminal equipment that scavenges power
from the RS-232 signals may not work
UNUSED SIGNALS: If RX or CTS inputs are not used, make sure they are looped
back into TX and RTS respectively to prevent them from
floating
4.3 POWER CONSUMPTION
All figures quoted are typical parameters @ 25°C (77°F)
VCC CURRENT: 35mA typical @ 3.3V
4.4 MECHANICAL
MASS: 15g typical (0.352 oz.)
FORM FACTOR: 36.4mm x 42.8mm x 5.0 mm overall (1.43” x 1.68” x 0.13”)
4.5 ENVIRONMENTAL
HUMIDITY: <80% R.H. (non-condensing)
TEMP: 0-50°C ambient (32-122°F)
CyberResearch
®
Serial Communications COML 2232F
CyberResearch, Inc. 5
25 Business Park Drive P: (203) 483-8815; F: (203) 483-9024
Branford, CT USA www.cyberresearch.com