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Green PCIe card with eight serial ports via DR62 connector

UOTEK

UOTEK UT-798 8 Port RS422 RS485 PCIe Serial Card

SKU CH-2TQ7-75QFP

Adds eight RS-422/RS-485 serial ports via PCI Express x1 with 300–921.6 kbps rates and –40 to 85 °C operation

  • Speed300bps-921.6kbps
  • InterfaceDR62 Female
  • BUSX1 2.5Gbps PCl Express
  • Temperature-40~85°C
  • Eight serial ports over one PCIe slot
  • 300 to 921.6 kbps transmission rate
  • Industrial -40 to 85 °C operating range
  • TVS surge protection on every port
  • Supports RS-422 and RS-485 modes

Industrial 8-port serial card

The UOTEK UT-798 adds eight RS-422 and RS-485 ports through a single PCI Express x1 slot running at 2.5 Gbps. It targets industrial automation, building management and data-acquisition systems that need many balanced serial links from one host computer.

Sustained-load behaviour

The card operates continuously from -40 °C to 85 °C, so it remains reliable inside hot enclosures or outdoor cabinets. On-board transient voltage suppressors clamp surges on every line, protecting the host from lightning-induced spikes and ESD events during long production runs.

Interface limits

Each port supports 300 bps to 921.6 kbps with configurable data bits, stop bits and parity. Flow control uses RTS/CTS or XON/XOFF. The DB-62 female connector carries all eight channels, so cable length and signal quality follow the RS-422/RS-485 electrical specifications rather than the PCIe bus speed.

Punti di forza

  • Eight serial ports over one PCIe slot
  • 300 to 921.6 kbps transmission rate
  • Industrial -40 to 85 °C operating range
  • TVS surge protection on every port
  • Supports RS-422 and RS-485 modes

Caratteristiche tecniche

BrandUOTEK
ModelUT-798
Speed300bps-921.6kbps
InterfaceDR62 Female
BUSX1 2.5Gbps PCl Express
Temperature-40~85°C

Domande su questo articolo

How much heat does the UT-798 generate when running all day at 921.6 kbps?

The card is rated for continuous operation from -40 °C to 85 °C, so it handles sustained loads without active cooling.

What cable or adapter do I need to connect devices to the single DR62 Female port?

You must supply a DR62-to-terminal-block cable or breakout box that splits the 62-pin connector into eight RS-422 or RS-485 differential pairs.

Can the UT-798 share a PCIe x1 2.5 Gbps slot with an older RS-422 card that also uses a single-lane interface?

Yes, each card occupies one x1 slot; the motherboard simply needs two free x1 lanes and the operating system will enumerate both independently.

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