Specification
Communications Interface
•
Serial Ports:
Shielded male D-sub 9-pin IBM AT style connectors
compatible with RS422 and RS485 specifications.
•
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 115,200 baud, asynchronous. A faster range of rates, up
to 460,800 baud, is achieved by jumper selection on the card.
Type 16550 buffered UART.
Caution
The OUT2 bit of the UART must be set low for proper interrupt driven communication. This bit enables
or disables the interrupts and the card will not communicate if the bit is pulled high.
Differential Communication Mode
•
Multipoint:
Compatible with RS422 and RS485 specifications. Up to 32
drivers and receivers allowed on line. Serial communications
ACE used is type 16550. Driver/Receivers used are type
75176.
•
Receiver Input Sensitivity:
+200 mV, differential input.
•
Common Mode Rejection:
+12V to -7V
•
Transmitter Output Drive Capability:
60 mA.
Environmental
•
Operating Temperature Range: 0 °C. to +60 °C.
•
Storage Temperature Range: -50 °C. to +120 °C.
•
Humidity:
5% to 95%, non-condensing.
•
Power Required:
+5VDC at 125 mA typical, +12VDC at 5 mA typical, 685 mW
total
power
consumption.
•
Size:
6 1/2" long (165 mm) by 3 7/8" (98 mm).
