Antaira MSC-208C-SI 8-port RS-232/422/485 PCI Express Card with Terminal Box

8-port RS-232/422/485 PCI Express Card, with Surge and Isolation Protation (WHQL Certified)
Model: MSC-208C-SI
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MSC-208C-SI 8-port RS-232/422/485 PCI Express Card to Terminal Box with Surge and Isolation Protection

Antaira Technologies’ MSC-208C-SI is an RS-232/422/485 PCI Express (PCIe) interface card plus terminal box that adds 8 ports of serial communication to industrial computers, servers and desktops.  Built for serial intense projects, it functions as client or server to connect industrial serial equipment like meters, scanners, card readers and instruments.   The PCI serial card connects to the terminal box to allow simple wiring of serial devices.  It supports 2-wire RS-232 signals, 4-wire RS-422/485 and 2-wire RS-485 connections.  Each serial channel is programmable.  The MSC-208C-SI fits into any standard x1 PCIe slot.  With a simple plug-and-play installation wizard, it is easy to setup and use.


  • 8-port serial box with a terminal block for each RS-232/422/485 channel
  • x1 PCIe card compliant to PCI Express Specification, Revision 1.1
  • RS-232 supports 3-wire Signals (TXD, RXD, GND)
  • Supports 4-wire RS-422/485 and 2-wire RS-485 modes
  • 7-pin locking terminal block for each port
  • 128-byte deep FIFO per transmitter and receivers
  • Low profile PCIe form factor, short and tall front panel brackets included
  • Baud rates to 921.6 Kbps
  • Isolated with 15KV ESD surge protection
  • LED indicators for TXD and RXD activity
  • 5, 6, 7, 8, 9-bit data framing
  • Terminal box powered by cable or external power
  • 5 year warranty

The MSC-208C-SI offers easy wiring and installation.  It supports Windows and Linux operating systems.  And, the plug-and-play utilities make setup quick and easy.

Total Ports8
TypePCI Express
Operating System SupportWindows, Linux
Serial Interface
Serial Ports8 x RS-232/422/485
Baud RateUp to 921.6 Kbps
Data Bits5, 6, 7, 8, 9
ParityNone, Odd, Even, Mark
Flow ControlXon / Xoff
SignalsCTS, RTS / DSR, DTR
Host Controller16C550/16C950 UART Compatible
Serial PowerSelect 5 VDC or 12 VDC over DB9 pins
FIFO128 Byte
Connector Type8 x DB9 male connectors via cable
Operating Temperature0 to 55°C
Storage Temperature-40 to 75°C
Humidity5 to 95% non-condensing
CertificationsCE, FCC, RoHS
Warranty5 Years
Download NameFile Size
MSC-208C-SI Datasheet8.08MB