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Green PCIe card with silver bracket and one DR62 port

UOTEK

UOTEK UT-798 8-port RS-422/485 PCIe network card

SKU CH-WGAW-ND9XH

Adds eight RS-422/485 serial ports via a PCIe x1 slot with TVS protection and an industrial temperature range of -40 to 85°C

  • Interface typePCI-Express
  • Connection typesDR62
  • Temperature range-40 to 85 °C
  • 8-port RS-422/485 connectivity via single DR62 connector
  • PCIe x1 2.5 Gbps bus for high-speed data transfer
  • Wide 300 bps to 921.6 kbps transmission rate range
  • Industrial -40°C to 85°C operating temperature tolerance
  • Built-in TVS protection guards against transient voltage spikes

Industrial serial expansion

The UOTEK UT-798 adds eight RS-422 and RS-485 ports through a single PCI Express x1 slot. It targets automation engineers and system integrators who need reliable multi-drop serial connectivity for PLCs, sensors or legacy industrial equipment across wide temperature ranges.

Slot and cabling check

Verify the host system has a free PCI Express x1 lane and that the chassis can accommodate the DR62 female connector. The board operates from -40 to 85 °C, so confirm airflow meets that envelope and plan for the proprietary DR62-to-DB9 or terminal-block cable assembly the connector requires.

Sustained communication behaviour

Hardware flow control via RTS/CTS and software XON/XOFF prevents buffer overruns during continuous streams at up to 921.6 kbps. On-board transient voltage suppressors clamp surge events without degrading signal integrity, letting the card maintain parity, stop-bit and data-bit settings over long cable runs in electrically noisy plants.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $113.99
Pricier than about 55% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameUOTEK
Model nameUT-798
Ports & slots
Interface typePCI-Express
Connection typesDR62
Environment & compliance
Temperature range-40 to 85 °C

Questions about this item

Does the UT-798 come with the DR62 cable or must it be purchased separately?

The card provides a single DR62 female connector; cables and breakout panels are not included and must be sourced separately.

Which DR62 breakout version matches my RS-422 or RS-485 wiring?

The DR62 interface carries both RS-422 (T/R+, T/R-, RXD+, RXD-, GND) and RS-485 (Data+, Data-, GND) signals, so one breakout cable serves either standard.

Will the 921.6 kbps rate hold across all eight ports at once?

The PCIe x1 2.5 Gbps bus provides ample bandwidth for eight ports running at 921.6 kbps simultaneously.

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