Additional Hardware; Moxa Serial Interface - Simrad Maris ECDIS900 Technical Manual

MOXA Serial Interface

Additional Hardware

D
ESCRIPTION
Both hardware platforms provide four or eight optical isolated RS422 serial ports for
communication applications in difficult environment. Serial card holds four or eight serial
ports, which are optically isolated and support the serial communication types RS-485 and RS-
422.
Smartline Mk6 has two onboard 16C550 UARTs (on-chip 16-byte FIFO buffers) making serial
I/O more reliable. By buffering data into 16-byte packets before putting it on the bus the
UARTs drastically reduce the CPU load. This makes the interface especially suitable for high
speed serial I/O applications under MS Windows.
On-board optical isolators protect the PC and equipment against damage from ground loops
to increase system reliability in harsh environments.
MOXA CP-134, 4-
PORT
MOXA CP-134 Series of Smart Multiport Serial Boards is designed by Moxa for Industrial
Automation system integrators for long distance, multi-point PC-based data acquisition.
On-chip Automatic Data Direction Control for Precision RS-485 Communication
RS-485 communication requires precise timing control for line driver enable and disable.
Powered by Moxa's Turbo Serial Engine™ chip that comes with on-chip ADDC™, sending RS-
485 packets over CP-134 is as easy as using RS-232.
RS-485 multidrop for up to 31 devices within 1.2 km
CP-134U V2 Universal PCI Multiport Serial Board provides 4 RS-422/485 serial ports, each
capable of data rates up to 921.6 Kbps. In RS-485 mode, the serial port can connect up to 31
daisychained RS-485 devices within a range of 1.2 km. For long distance RS-485
communication, optional 2 KV isolation protection is available (CP-134) to prevent equipment
damage.
Features:
Over 700 Kbps data throughput, for top performance in the world 4-port RS-422/485
•
interface with ADDC™ and up to 921.6 Kbps 2-wire/4-wire RS-485 communication up to
1.2 km
Built-in 15 KV ESD and optional 2 KV optical isolation protection 128-byte FIFO and on-
•
chip H/W, S/W flow control
Universal PCI compatible with 3.3/5V PCI and PCI-X
•
Windows 7/XP/, Linux, Unix driver support
•
Dimensions and layout
39
MOXA S
RS232/422/485
SERIAL
I
ERIAL NTERFACE
PCI-
BOARD