System Structure:

• intelligent Buffer eight Card .
• expandable cable with eight standard DB25 connector.

Serial Communication Controller:

• type:16550A compatible with PGA support.
• speed :1.8432MHz.(can be used up to 7.3728MHz)

Hardware Compatibility:

• ISA / EISA bus slot.
• 80286 / 80386 / 80486 /P5 system

Software Compatibility:

• SCO XENIX
• SCO UNIX
• MSDOS
• Windows 95/98/2000/XP
• Windows NT
• OS2
• Windows 95

System I/O & IRQ Mapping:

• use jumper to choose DIGI mode or STAR mode.
• use jumper to choose COM1 mode or COM2 mode.
• I/O map in DIGI and COM1 mode : 0x110-0x157.
                  DIGI and COM2 mode : 0x210-0x257.
                  STAR and COM1 mode : 0x290-0x2d7.
                  STAR and COM2 mode : 0x190-0x1d7.  

System Interrupt mapping:

• use jumper to choose IRQ3 / 4 / 5 / 6 / 7 / 10 / 11 / 12 / 15 
• In SCO UNIX / XENIX mode must set  IRQ 4 in COM1 mode and IRQ3 in COM2 mode 
• In other system no limitation in IRQ setting 

Port Capability:

• Number of port:8 ports per card.
• Interface:RS232C compatible .( Note : we can use with R422 box to support RS422 interface )
• Baud Rate: each port can be configured to 50-38400bps in UNIX system and up to 115200bps in other system . ( Note : use 7.3728MHz can support up to  448Kbps. )
• Connector type:DB25 male connector .

Dimensions:

• A480 card:5.0 X 3.75 inch.

Environment:

• Operating temperature:0°C to 65°C.
• Operating humidity:5% to 95% RH.
• Storage temperature:0°C to 85°C.