PCI 16C1058 8S DB9 RS232 Multi-I/O Serial Card

By using this card, user can add multiple serial ports to their computer for connecting serial devices, offers superior performance and unmatched data transfer, it is ideal for industrial automation applications.

  • PO.: ST327
  • P/N.: SP-SL1058A-8S
  • Bus Type: PCI
  • Media Port: DB-9 male Connectors
  • Main Chipset: SB16C1058PCI


PCI to Octal-UART Bridge Controller


SB16C1058PCI is a single chip which enables 8 asynchronous serial communication ports to be connected to the PCI bus without any glue logic and it is the best solution to constitute a serial port for the PCI bus. It allows customers to make easy and simple reference design as a one-chip solution for 8-port serial multi-port cards.

It includes SB16C1058, Octal-UART with 256-byte TX/RX FIFO developed by SystemBase. It also has enhanced features: global interrupt and dedicated control pins for RS422/485 auto toggling. The 256-byte FIFOs reduce CPU overhead and allow higher data throughput.

KEY Features

- Standard PCI Local Bus Specification Rev. 2.3 Compliant

- Built-In PCI Target Controller @ 33/66MHz

- Built-In eight improved 16C1050 UART with 256 Byte Deep FIFO

- Global Interrupt and Control pins for RS422/485 Auto Toggling

- Zero-Wait PCI Conversion and 24ns UART response time for IOR & IOW

• PCI-Express Interface

- Fully compliant with PCI-Express Base Specification Revision 1.1

- Single-Lane (x1) PCI-Express with throughput up to 2.5Gbps

- Supports up to 8 RS232 Serial ports,  Re-map function for legacy ports

- Large individual FIFO on each serial ports for fast operation

- Available WHQL software drivers for Windows operating systems

UART Interface

- Octal-UART with 256 Byte Transmit/Receiver Deep FIFOs

- Register Set Compatible with 16C550 and 16C650

- Serial Data Rate of Up to 5.3Mbps & System Clock Up to 85MHz

- Software/Hardware Flow Control & Xoff Re-Transmit Function

- Global Interrupt & Control Pins for RS422/485 Auto Toggling

- Fast UART Response Time, 24ns for IOR & IOW operation

- Internal Diagnostic Capabilities

General specification
Chipset-controllerSystembase® 16C1058PCI

Bus type

PCI Revision.2.3, 32-bit, 33/66MHz
Transmission media8 x DB-9 male Serial connectors
I/O controllerEight 16C550C or compatible chips, each with 256 bytes TX/RX FIFO
Data rateup to 921.6Kbps
FunctionBy using automatic data transfers and assign IRQ & I/O address
No need switches and jumpers, all the settings will be done by software
On-chip hardware flow control resistors guarantee data integrity
Surge Protection and Optical Isolation available as options.
Operating SystemsWindows 2000 / XP / Server2003 / Vista / Win 7 / Win 8 / Win 8.1 / Win10, 32 or 64bit

DOS, Linux2.6.27,2.6.31,2.6.32,3.x.x and later

Hardware & environment

Operating Temperature-40 to +85℃
Storage temperature-55 to +125℃

Packing Accessories list

1 x PCI 8S DB-9 RS232 Multi-I/O Serial card

1 x CD driver

1 x User's manual

1 x DB9 RS232 Serial Cable

Note: Only the above package contents, other products are not included.The allowable error of size measurement is +/- 1~3mm, and the weight of the product is subject to the actual product.

DimensionsL100 x W78 mm (measured without PCI bracket)
Package SizeL172 x W140 x H75 (Built-in Blister)
Product weight464.2 g
Package weight



PO#P/NSpecificationsOrdering Note
   ST327    SP-SL1058A-8SPCI 8S DB-9 RS232 Multi- I/O Serial card

Based on Systembase 16C1058PCI Controller
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