Moxa’s dedication to being a trusted provider of serial connectivity is demonstrated by our long-term commitment to serial products and service availability. Our PCI Express, Universal PCI, and PCI serial boards are built for industrial applications, and include models that can operate reliably in a wide temperature range.

2-port RS-422/485 low-profile PCI Express x1 serial board (includes DB9 male cable)

Serial Interface
Comm. Controller
– 16C550C compatible
Bus
– PCI Express 1.0
Connector
– DB25 female
FIFO
– 128 bytes
Max. No. of Boards per PC
– 8
No. of Ports
– 2
Serial Standards
– RS-422, RS-485
Baudrate
– 50 bps to 921.6 kbps (supports non-standard baudrates)
Data Bits
– 5, 6, 7, 8
Stop Bits
– 1, 1.5, 2
Parity
– None, Even, Odd, Space, Mark
Flow Control
– None, XON/XOFF

Serial Signals
RS-422
– Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w
– Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w
– Data+, Data-, GND

Serial Software Features
Windows Drivers
– DOS, Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7/8/8.1/10 (x86/x64), Windows 2008 R2/2012/2012 R2/2016/2019 (x64), Windows Embedded CE 5.0/6.0, Windows XP Embedded
Linux Drivers
– Linux kernel 2.4.x, Linux kernel 2.6.x, Linux kernel 3.x, Linux kernel 4.x, Linux kernel 5.x
UNIX Drivers
– Solaris 10, UnixWare 7, SCO OpenServer 5, SCO OpenServer 6, QNX 6

Power Parameters
Input Current
– 548 mA @ 3.3 VDC

Physical Characteristics
Dimensions
– 67.21 x 101.97 mm (2.65 x 4.08 in)

LED Interface
LED Indicators
– Built-in Tx, Rx LEDs for each port

Environmental Limits
Operating Temperature
– 0 to 55°C (32 to 131°F)
Storage Temperature (package included)
– -20 to 85°C (-4 to 185°F)
Ambient Relative Humidity
– 5 to 95% (non-condensing)

Standards and Certifications
EMC
– EN 55032/35
EMI
– CISPR 32, FCC Part 15B Class B
EMS
– IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV
– IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m
– IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV
– IEC 61000-4-5 Surge: Power: 2 kV
– IEC 61000-4-6 CS: 150 kHz to 80 MHz: 3 V/m; Signal: 3 V/m
– IEC 61000-4-8 PFMF

Declaration
Green Product
– RoHS, CRoHS, WEEE

MTBF
Time
– 4,147,133 hrs
Standards
– Telcordia (Bellcore) Standard TR/SR