Manual 104i-COM-8SM
19
Chapter 7: SPECIFICATION
PCI Bus:
Rev. 2.3
Memory Space:
Requires 4k
16550 Compatible
Data Size:
5, 6, 7 or 8 bits
Stop bit length:
1, 1.5 or 2 bits
Parity:
Odd, even, none, mark, or space
Break condition:
On or off
Maximum Baud Rate:
921.6kbps (RS-232, RS-422 & 485 modes)
Full Duplex Operation
Eight 64 Byte Transmit FIFO, 64 Byte Receive FIFO (16C550 FIFO = 16 Bytes)
S/W programmable FIFO trigger levels (16C550 trigger levels are fixed)
12 standard registers for UART monitoring and control plus special registers
Loop-back mode
Scratch pad register
Transceiver I/O Characteristics
RS-232 Mode:
Receiver Input Resistance: 3K to 7K ohm
Receiver Input Sensitivity:
±3V
Receiver Input Range:
±15V
Driver Slew Rate:
24V/
S minimum
Driver Load Impedance:
3K to 7K ohm
Driver Output Signal Level: Loaded ±5.4V typical
RS-422/485 Mode:
Receiver Input Sensitivity:
±200 mV differential input
Common Mode Range:
+12V to -7V
Transmitter Output Drive:
60 mA with thermal shutdown
Input Impedance:
12 K ohm Min
Input Hysteresis:
50 mV typical
ESD:
±15KV Human Body Model
±15KV Air Discharge
±8KV Contact Discharge
Communications Interface:
Eight channels split between two 40 pin male headers
Meets or exceeds the IEEE RS-232 standard
Environmental
Operating Temperature:
0˚C to +70˚C
-40
˚C to +85˚C (Extended temp version)
Humidity:
5% to 95%, non-condensing
Storage Temperature:
-65
˚C to +125 ˚C
Power Required:
5V @ 50mA quiescent, 150mA maximum (nothing connected
on I/O connectors)
Size:
PC/104-Plus format, 3.5" x 3.75"
