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| Universal
PCI |
| Moxa's Universal PCI boards meet the new
slot standard for serial boards that is being rapidly
adopted
by PC server
manufacturers. In addition, Moxa's Universal PCI boards work
with both 3.3-volt and 5-volt PCI slots, allowing MOXA boards
to be used in virtually any PC available. We provide 2/4/8
independent RS-232/422/485 serial ports for connecting data
acquisition equipment and many other serial devices to
a PC. >> See More |
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| RS-232
Serial Communication |
| RS-232 is a straightforward, universal,
and commonly implemented serial interface. Despite its limited
15 m transmission distance, its low cost and easy wiring
features make RS-232 the first
choice for many applications. RS-232 establishes two-way (full-duplex)
communications, with signals represented by voltage levels
measured with respect to a system common ground (power/logic ground). The "idle" state
(MARK) is negative with respect to the common ground, and the "active" state
(SPACE) is positive with respect to common ground. >> See More |
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| RS-422/485
Serial Communication |
| Most devices used in today's industrial
environments are designed for use with the RS-422/485 interface.
This means that
many users employ RS-422/485 serial communication boards
in their PCs, allowing the PCs to connect to an industrial
RS-422 or
RS-485 network and transmit data over distances up to 1.2
km. The RS-422/485 standards overcome the transmission distance
limitation by using a differential signal for transmitting
data and
control signals. >> See More |
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| RS-422/485
Wiring |
| Point to point and multidrop wiring diagrams
for 2-wire RS-485 and 4-wire RS-422. >> See More |
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