Connect Tech Xtreme/104 Opto User Manual - page 7
Xtreme/104 Opto User’s Manual, Connect Tech Inc.
7
Revision
0.05
Introduction
Xtreme/104 Opto adapters are high performance multi-port serial adapters for PC/104 stacks that
enable you to connect up to four serial devices per board. Each port is optically isolated from
each other and from the board up to 3.0 kV AC, peak to peak.
Features
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Two or four asynchronous serial ports
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RS-232 and/or RS-422/485 electrical interfaces
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Interfaces are jumper selectable for each port
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Optical isolation (see
for more details)
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Industrial temperature model operates between -40 and 85 degrees Celsius (-40 to 185
degrees Fahrenheit)
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Multiple Xtreme/104 Opto adapters may reside in a system
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16C2850 dual UARTs control each port. The 16C2850 has 128 byte transmit and receive
FIFO buffers for each port and automatic software/hardware flow control
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Each port has independent baud rate selection offering baud rates from 50 bps – 230.4 Kbps
(RS-232) and 50 bps – 460.8 Kbps (RS-422/485), with 5, 6, 7 or 8 data bits and 1, 1.5, 2
stop bits, odd or even parity
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On board jumpers allow the selection of 8 predefined I/O address sets
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On board jumpers allow the selection of 1, 2 or 4 IRQ lines. Choose from interrupts 3, 4, 5,
6, 7, 9, 10, 11, 12, 14 and 15
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Each port is individually optically isolated up to 3.0 kV AC peak to peak
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Driver support for Windows 95/98/Me, Windows CE/CE .NET, Windows XP and Windows
NT/2000, Linux, Solaris, SCO Unix, and QNX 2, 4, and QNX 6 (Neutrino)
Optical Isolation Notes
The Xtreme/104 Opto uses optocouplers and isolated DC to DC converters to achieve optical
isolation. The board provides 3.0 kV AC peak to peak isolation between each port and also
between each port and your system. However there are some considerations to note.
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Optical isolation can degrade if the board is subjected to high humidity, especially
conditions that are right for condensation to occur.
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Optical isolation can degrade if airborne dust is allowed to accumulate on the surface of the
board.
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An electrical shock hazard could exist depending on what equipment is connected to the
Xtreme/104 Opto. Under these circumstances the wiring and/or cabling leading to the serial
port connections may have high voltages on them. You must use appropriately insulated
cables in these situations.
●
Please contact your
Connect Tech Technical Support Specialist
for any questions related to
the application of optical isolation.