
D4-29
 Eight Port 
RS-232 
Interface
 All Modem 
Control 
Signals 
Implemented
 On Board 
Interrupt Status Port 
for Greater Throughput
 Occupies 64 Consecutive
I/O Locations User 
Selectable as: Consecutive 
with DIP-Switch or 
Customizable with PAL 
Option
 Sharable IRQ Level 
(2-5, 7, 10-12, and 15)
 16654 Buffered UART
Standard-Full Array of 
Advanced UARTS 
Available
 Compatible with DOS,
WIN 95/98/Me/NT/2000/XP, 
QNX and Other Operating 
Systems
 Includes Software for DOS
Interrupt Buffering
 Windows NT Installation
Utility for Simple Set-up
 Includes DOS Utilities,
Windows Advanced COM 
Driver and Help Files to 
Simplify Installation
To Order 
(Specify Model Number)
Model Number Price Description
OMG-COMM8-A $439 Eight port RS-232 interface 
OMG-COMM8-A-DB9 439 Eight port RS-232 interface with DB-9P Connector 
OMG-HICOM/9 99 Driver software for up to 9 Windows 3.1x ports
Comes with complete operator’s manual, octopus cable and serial utility disk.
Ordering Example: OMG-COMM8-A eight port RS-232 interface and OMEGACARE
SM
1-year extended warranty (adds 1 year to standard 1-year warranty), $439 + 43 = $482.
The OMG-COMM8-A provides the 
PC with eight RS-232 Asynchronous 
ports for terminals, data collection and 
other devices. This product includes 
extended “AT” interrupts, extended 
address range for UNIX, XENIX and 
QNX compatibility, and an interrupt 
status port for greater data throughput. 
Set each port to a separate interrupt 
or share a single interrupt across 
multiple ports under Windows NT. 
WIN 95/98/Me/NT/2000/XP drivers 
are included as well as support for 
Linux, QNX and DOS. The drivers 
provide IRQ sharing, advanced 
UART support and serial diagnostic 
utilities.
Specifications
Communications Chip: 16654 UART 
Number of Ports: eight RS-232 
Max. Data Rate:
OMG-COMM8-A: 460.8k bps 
(depends on distance)
Max. Data Distance: up to 50 ft. 
Operating Temperature:
0 to 122°F (0 to 50°C)
Storage Temperature:
-4 to 158°F (-20 to 70°C )
Humidity Range: 10-90% RH 
Current Specifications: 
+5V @ 200 mA, +12 V @ 115 mA,
-12 V @ 165 mA
Connector(s):
on board DB-78 to (8) DB-25P; 
DB-9P connectors optional
Physical Dimensions:
7.0 L x 4.2" H (17.78 x 10.66 cm)
Shown smaller 
than actual size
8 Port ISA RS-232 Serial Interface 
with Extended “AT” Interrupts
Model 
OMG-COMM8-A
$
439
 

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