Quatech/B&B Performance PCIe based RS-422/RS-485 Serial ExpressCards

ExpressCard to Serial I/O Quatech/B&B's high performance ExpressCard 34 to Serial I/O cards adds fast serial COM ports to mobile computers for attaching fax/modems, bar code scanners, court reporters, data acquisition equipment, mag stripe readers, GPS receivers, digital cameras or other RS-422/RS-485 serial devices. Unlike other ExpressCard Serial adapters, Quatech/B&B's utilize the PCIe portion of the ExpressCard standard.

Advantages of a PCIe-based ExpressCard design are in the interface to the laptop's motherboard. The PCIe bus interface is the successor to the PCI bus, which in turn was the successor to the ISA bus to which built-in ports were originally attached. As such, the ExpressCard adapter design utilizes a PCIe-based design and can still directly use I/O space addresses and interrupts, thus more closely emulating built-in ports than can be done via USB-based design. Moreover, because there's no USB stack for the drivers to contend with, throughput can be higher and latency will be lower (considerably so in many cases). Due to improved data transfer rate, the ExpressCard is considerably more efficient for multi-tasking operations. The PXPseries support data rates of up to 921.6Kbps, which provides steady flow of data throughput.

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Part Number and Description	Price	Add to Cart
EXP34-SSPXP-200/300 Quatech/B&B 1 port Performance PCIe based RS-422/485 Serial ExpressCard	N/A
EXP34-DSPXP-200/300 Quatech/B&B 2 port Performance PCIe based RS-422/485 Serial ExpressCard	N/A
EXP34-QSPXP-200/300 Quatech/B&B 4 port Performance PCIe based RS-422/485 Serial ExpressCard	$325.00
Optional Accessories
EXP34-54SLOTGUARD Synchrotech SlotGuardExpress ExpressCard/34 Stabilizer Insert for ExpressCard/54 Slots

Features and Specifications

Win32

CE Mark

Features

True serial emulation
New generation of I/O expansion for notebooks
Adds 1, 2 or 4 high-speed PCIe-based serial ports
Supports PCI Express Base Specification Revision 1.1a
Built-in 1024-byte FIFOs buffers increase data transmit/receive speed
Baud rates up to 115.2 Kbps with 16550-based serial units (for SSPX model)
Baud rates up to 921.6Kbps (for SSPXP and DSPXP models)
Supports Windows XP/Vista/7 operating systems
High speed ExpressCard with plug-n-play
Hot plugging and how swapping features
Meets FCC and CE safety standards
Installs in any ExpressCard slot

Warranty Information

Manufacturer's 5 Year Limited Warranty

Bus Interface

ExpressCard Standard: PCI Express based Designs Specification, Revision 1.1 compliant interface

RS-422/485 Features

Data FIFO: 1024-byte
UARTS: 16450/550/750-compatible register set
Data Bits Supports 5, 6, 7, 8; Supports even, odd, mark, space and no parity; Supports 1, 1.5 and 2 stop bits
Supports full-duplex and RTS, DTR or automatic transmitter control half-duplex
Selectable RTS/CTS, TxCLK/RxCLK or loopback auxiliary data pair
TIA-400-B (RS-422) and TIA-485-A (RS-485) compliant
Full fail-safe (open and short) 1/8 load receivers
Selectable receiver control (echo/no echo)

Baud Rates