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Multi-Port Serial Cards

Multi-Port Serial Cards

Connect Legacy Hardware with a Multi-Port Serial Interface Card

Few new computers come with a serial port. Without the DB9-style connector, there’s no easy way to hook up older hardware that uses the RS-232/422/485 standards. And even when the port is present, it’s only possible to connect a single serial instrument.

A multi-port serial interface card overcomes these problems. Easily installed in a spare interface slot in the PC, these cards can accept connections from up to 16 separate serial devices. This way data acquisition or automation hardware is managed from a single location. Westward Sales carries serial interface cards for both the PCI Express slots found in new PCs and the older PCI bus. These come with a CD containing utilities and drivers for both Windows and Linux.

 

Buses and Cards

The serial interface card must be matched to the bus in the PC. Older computers use PCI, of which there were two versions. Version 1 is distinguished by a single notch in the interface card.  It used 5V signaling. The later Version 2 used 3.3V. A Universal PCI card works with both versions and is identified by two notches.

PCI Express cards are not interchangeable with PCI. These use multi-lane technology to achieve much higher speeds than PCI can deliver. Lanes are designated as “x1, “x4,” “x8,” “x16,” and “x32.”

PCI interface cards are produced in both low profile and standard or full height formats. In a low profile card the bracket securing the card in the case measures 79.2mm while that on a full height card is 120 mm.  Always purchase the right height card for the destination PC.

Product Range

Westward sells serial interface cards made by Antaira Technologies that carry a 5 year warranty. These are available in both low profile and full height formats, for RS-232 and RS-422/485 formats separately, and also for RS-232/422/485 combined.

Full height two port cards provide two DB9-style connectors. The MSC-102A and MSC-202A-V2 are RS232 examples for PCI and PCI Express respectively. The low profile versions of these cards, the MSC-102AL-1 and the MSC-202AL1, use a single connection cable splitting into two DB9 connectors.

Four port cards have a single DB44 connector and come with a cable breaking out to four DB9's. In an eight port card the cable breaks out to eight separate DB9's. A full height 16 port card like the MSC-116A (PCI) or the MSC-216A (PCI Express) has two VHDCI-68 front panel connectors, each of which accept a cable breaking out to eight DB9 connectors.

Westward Helps Serial Hardware Talk to Modern Computers

Serial devices are used in many industries, but serial ports are rare on new computers and multiple ports unheard of. Connecting older serial equipment to a new PC is possible by installing a serial interface card. These are available in full height and low profile formats and for both RS-232 and RS-422/485. For more information contact a Westward Sales product specialist.

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MSC-102A 2-Port RS-232 Universal PCI CardThe MSC-102A from Antaira Technologies is a PCI se..
$39.00
MSC-102AL-1 2-Port RS-232 Universal PCI Card, Low and Standard Profile HeightThe Antaira Te..
$39.00
MSC-102B1, 2 Ports of RS-422/485, Universal PCI Card with Optional Surge and Isolation Protecti..
$87.00
Antaira MSC-102B1L 2-Port RS-422/485 Low Profile Universal PCI Card with Optional Isolation Pro..
$99.00
Antaira MSC-102C 2-Port RS-232/422/485 PCI Card with Optional Isolation and Surge Protection ..
$119.00
Antaira MSC-104A1 Universal PCI Card with 4 Ports of RS-232 Serial CommunicationThe MSC-104..
$79.00
Antaira MSC-104B, 4-Port RS-422/485 Universal PCI Card with Surge and Isolation Protection (Opt..
$179.00
Antaira MSC-104CL 4-Port RS-232/422/485 Universal PCI Serial CardAntaira Technologies’ New ..
$179.00
Antaira MSC-108A 8-Port RS-232 Universal PCI CardAntaira Technologies MSC-108A is a PCI-bas..
$169.00
Antaira MSC-108B 8-Port RS-422/485 Universal PCI CardAntaira Technologies MSC-108B is a PCI..
$249.00
Antaira MSC-116A 16-Port RS-232 Universal PCI CardThe Antaira Technologies MSC-116A is a hi..
$335.00
MSC-202A1-V2 PCI Express Card with 2 Ports of RS-232The MSC-202A1-V2, from Antaira Technologies,..
$69.00
Antaira MSC-202A1 PCI Express Card with 2 Ports of RS-232 and Oxford Single-Chip PCIeThe MSC-202..
$69.00
Antaira MSC-202AL1 2-Port RS-232 PCI Express Card, Low Profile (Support Power Over Pin-9)An..
$79.00
Antaira MSC-202ALP 2-Port RS-232 with 1 Parallel Port, Low Profile PCI Express CardThe Anta..
$69.00
Antaira MSC-202ALP1 with 2 RS-232 Powered Serial Ports and 1 Parallel Port, Low Profile PCI Express ..
$79.00
Antaira MSC-202B1 PCI Express Card with 2 Ports of RS-422/485, Optional Surge and Isolation Protecti..
$119.00
Antaira MSC-202B1L 2-Port RS-422/485 PCI Express Card with Choice of Isolation ProtectionAn..
$129.00
Antaira MSC-204A1 PCI Express Board with 4 RS-232 Powered PortsThe MSC-204A1, manufactured by An..
$99.00
Antaira MSC-204A2 4-Port RS-232 PCI Express Card with Power Over Serial ConnectorsThe MSC-2..
$109.00
Antaira MSC-204B1 4-port RS-422/485 PCI Express Card, Optional Surge and Isolation Protection ..
$239.00
Antaira MSC-208A1 8-Port RS-232 PCI Express Card with Powered PortsThe MSC-208A1, manufactu..
$189.00
MSC-208C-SI 8-port RS-232/422/485 PCI Express Card to Terminal Box with Surge and Isolation Protecti..
$729.00
Antaira MSC-216A 16-Port RS-232 PCI Express Card with Powered PortsThe MSC-216A1, from Anta..
$359.00
3-Port USB 2.0 PCI Express CardThe USB-68101K high performing PCI Express to USB host bus adapte..
$69.00
Multi-Port, Serial, Cards, Connectivity