Add 1 high-speed serial RS-232 port to any PC with a PCI Express slot
PCI Express Serial Card
PCI-e Serial Card
PCI Express RS232
RS232 Card
PCIe Serial Adapter
16950 UART
Low Profile Bracket Included
Overview
Specs
Reviews
Add One Serial PortBased on native single-chip, single lane PCI Express Oxford OXPCIe952 Chipset, the StarTech PEX1S952LP card adds one RS232 (DB9) Serial Port to any PCI Express equipped computer for easy connection to legacy equipment.
Low Profile BracketIncluded low profile bracket allows hassle-free installation in Micro and slimline form factor computer cases.
Learn more about the STARTECH PEX1S952LP
Model
Brand
StarTech.com
Model
PEX1S952LP
Details
Type
PCI Express to Serial Port Card
External Ports
1 - DB 9-pin Serial Male
Operating Systems Supported
Windows 2000/XP/2003/Vista, and Linux Kernel 2.6.11 and up
Features
Features
Oxford OXPCIe952 Chipset 128-byte deep FIFO per transmitter and receiver Automated in-band software flow control using programmable Xon/Xoff in both directions Automated out-of-band hardware flow control using Tx/Rx/RTS/CTS/DSR/DTR/DCD/RI/GND Compliant with IEEE1284, SPP/EPP/ECP parallel port Compliant with PCI Express base specifications revision 1.0a High Performance Single Channel Oxford 950 UART Native single-Chip, single lane PCI Express One high speed RS-232 serial ports with data transfer rate up to 460.8 Kbps Selectable power output on pin 9 for the serial port Single chip design optimizes speed and reliability
Cons: As others have found they work when they want to not when you need them too. Bought for production test systems and all they did was waste my time.
Pros: Worked with Debian Lenny. It is necessary to append "8250.nr_uarts=10" (without quotes) to the Linux kernel command line (e.g., in /boot/grub/menu.lst or in /etc/default/grub) so that the kernel expects a high enough number of serial ports. 10 is chosen above assuming 2 built-in serial ports. I'm using mine in an HP ProLiant M110 G7.
Cons: In my system, the mapping from physical ports to /dev/ttyS* is as follows:
Cable 1 - /dev/ttyS4
Cable 2 - /dev/ttyS5
Cable 3 - /dev/ttyS6
Cable 4 - /dev/ttyS7
Cable 5 - /dev/ttyS8
Cable 6 - /dev/ttyS9
Cable 7 - /dev/ttyS2
Cable 8 - /dev/ttyS3
... not very intuitive.
Overall Review: I haven't had it in use long enough to comment on reliability.
Pros: Was supposed to work with Linux
Cons: As others have found they work when they want to not when you need them too. Bought for production test systems and all they did was waste my time.