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Green PCI card with metal bracket and black DB9 cable harness

UOTEK

UOTEK UT-764I 4-Port RS232 PCI Serial Card Optical Isolation DB9

SKU CH-VQB4-F6N7M

Adds four optically isolated RS-232 serial ports via a 32-bit PCI slot with 2500 Vrms isolation and 921.6 kbps maximum speed

  • Connectors1 DR44 Female
  • InterfacePCI
  • Temperature-40~85°C
  • Optical isolation up to 2500 Vrms protects circuits
  • Four RS-232 ports via DR44 connector expand connectivity
  • Wide OS support from Win2000 to Linux 2.6.x
  • Industrial temperature range -40 to 85 °C
  • Transmission rates 300 to 921.6 kbps suit legacy devices

Industrial PCI Serial Expansion

The UOTEK UT-764I adds four RS-232 ports to a desktop or industrial PC through a single 32-bit Universal PCI slot. A DB44 female connector on the bracket breaks out to four DB9 ports via an included cable, delivering standard RXD, TXD, GND, RTS and CTS signals for legacy equipment.

Suited for automation and legacy I/O

Engineers maintaining PLCs, CNC controllers, barcode scanners or serial terminals gain reliable port expansion with 2500Vrms optical isolation and TVS protection on every line. Systems without an available PCI slot or those requiring USB or PCI Express connectivity cannot use this card.

Sustained operation across temperature extremes

The card is rated for continuous use from -40°C to 85°C, with isolation and transient suppression active at all supported baud rates up to 921.6kbps. Hardware flow control and configurable parity, data and stop bits maintain data integrity during long polling cycles or uninterrupted logging sessions.

Puntos fuertes

  • Optical isolation up to 2500 Vrms protects circuits
  • Four RS-232 ports via DR44 connector expand connectivity
  • Wide OS support from Win2000 to Linux 2.6.x
  • Industrial temperature range -40 to 85 °C
  • Transmission rates 300 to 921.6 kbps suit legacy devices

Especificaciones

BrandUOTEK
ModelUT-764I
Connectors1 DR44 Female
InterfacePCI
Temperature-40~85°C

Preguntas sobre este artículo

Which cable converts the DR44 Female connector into four DB9 ports?

You need a DR44-to-4×DB9 breakout cable; the card itself only exposes the single DR44 Female interface.

Will this 32 bit Universal PCI card install in a legacy 32-bit PCI slot on an older motherboard?

Yes, the 32 bit Universal PCI interface fits standard 32-bit PCI slots and is supported on systems from Win2000 through Win10 and Linux 2.4.x/2.6.x.

How do I confirm the 2500Vrms optical isolation is active after driver installation?

Open Device Manager, verify four new COM ports appear, then loop back TXD to RXD on each DB9 port and run a terminal echo test at 921.6kbps.

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