Мультипортовая плата Quatech Two Port PCI DSC-100 Card for RS-232

Quatech RS-232 asynchronous serial PCI boards are an ideal solution for adding additional ports to a wide variety of systems.

These cards function exactly like the standard COM port(s) on system motherboards. All PCI registers are properly implemented, so you can be sure that the Quatech board will be a good citizen on the PCI bus.

Multiport PCI cards share a single IRQ.

For high performance is heavy multitasking environments, this card is implemented with 16750 UARTs containing 64-byte FIFOs.

This along with Quatech's special clock-multiplying feature enables data transfer rates as high as 921.6 kbps.

A four-layer board design is used to ensure maximum signal integrity.

Note the availability of an "IND" model which features onboard surge suppressors.

• Two RS-232 ports
  
• Speeds to 921.6 Kbps each port simultaneously
  
• DB-9F connectors on card edge
  
• Low power requirements
  
• Full modem control and hardware and software flow control
  
• Windows 95, 98, Me, NT 4, 2000, XP and Linux supported.
  
• VCS Async Ready
  
• 5 year warranty by Quatec

Detailed specifications

• Bus Interface: 32-bit, 33 MHz PCI Bus specification 2.2 compliant
  
• OS Support: Windows CE/9x/Me/NT/2000/XP, DOS, Linux, OS/2
  
• 921.6 Kbps (max*) each port simultaneously.
  
• Cables: Two DB-9F connectors on card edge
  
• Transceiver: MAX491 or compatible
  
• Drivers:
  Differential Voltage: +2V (max)
  Transition Time (TLH): 15 ns (typ), 40 ns (max)
  Transition Time (THL): 15 ns (typ)
  
• Receive Buffers:
  Differential Input Threshold: +/- 0.2V
  Voltage Range: -7V to +12V common mode input
  Transition time (THL-TLH) 15 ns (typ)
  
• Environment:
  Operating: 0°C to 70°C.
  Storage: -50°C to 80°C.
  Humidity: 10% to 90%
  
• Power Requirements: 320 ma (+5V)
  
• Size: 58" x 3.7"
  
• Certifications: CE, FCC Class B
  
• IND Option: Surge suppressor applied to each line that is capable of sustaining up to 40A peak, 8 x 20µs transient surges, a clamping voltage of 30V and peak energy dissipation of 0.1 Joules.
  * NOTE: The "IND option limits data rates to 115.2 Kbps due to capacitive loading.