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PCI-1884U

PCI-1884U is a general-purpose communication card, intended for PCI (3.3V or 5V) or PCI-X bus. The card provides four isolated RS-422/485 ports.

The PCI-1884U card is based on the Oxford Semiconductor controller OXmPCI954 that provides PCI bus interface, four efficient UARTs (16C950 standard) and parallel interface in one circuit.

All ports lead to four RJ45 connectors on the card and all four ports provide the optical isolation.

Like any other TEDIA products, the RS-422/485 output circuits provide surge protection (TVS diodes) and termination impedances with fail-safe bias resistors, as advised by many standards (e.g. Profibus).

Useful feature are LED indicators on the card mounting bracket (a pair for every port) providing a comfortable check of the line activity.

Delivery details

The product packet includes the card and InfoCD with drivers and user manual.

Specifications

Type PCI-1884U
Number of ports 4
Ports type RS-422/485
Communication controller OXmPCI954 (Oxford Semiconductor)
Transfer rate up to 921.6kBd
Supported signals RS-422: TXD+ (B), TXD- (A), RXD+ (B), RXD- (A)
RS-485: TXD/RXD+ (B), TXD/RXD- (A)
Transceiver type SN75176 (Texas Instruments)
RS-422/485 operating modes RS-422, RS-422 multimaster, RS-485
RS-422/485 flow control automatic (ADFC), DTR
RS-422/485 ESD
surge protection
300A, 8/20 µs, IEC 801-5 (TVS 5V8/600W)
Isolation voltage 1kVDC
RS-422/485
termination impedance
120Ω/0.7V
Bus type PCI, 3V3/5V, 32-bit, 33MHz
(64-bit PCI and PCI-X compatible)
I/O and MEM address,
Interrupt channels
assigned by PnP PCI BIOS
Dimensions approx. 90x125 mm