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Host interfaces for ITC-18
and EPC 10Plus
The ITC-18 is an external
rack-mountable data acquisition unit that is attached to the computer using
a dedicated host interface. A major advantage of this design is the capability
to use the analog front end (ITC-18 or EPC-10Plus) with a variety of
available host interfaces. Most data acquisition devices are printed
circuit boards installed directly into the computer. These devices
become obsolete with the computer platform that they are attached to. Moving the ITC-18 from one
computer platform to another is a simple matter of using the appropriate
host interface, and installing compatible software. Utilizing the
same hardware when changing computer platforms provides a cost effective
upgrade path to newer computer technologies without sacrificing your
initial investment
In keeping with this design philosophy
InstruTECH has developed new host interfaces for the ITC-18 and EPC-10Plus.
A
note about Macintosh G5 computers
Apple has once again
changed the PCI bus on their Power Mac G5 desktop computers. The
latest release, as of November 2005, use’s a PCI Express bus
architecture. The PCI Express bus IS NOT compatible with either the
PCI-18 or the PCI-18V3 host interface. The only host interface choice
would be the USB-18. This would also be true for iMAC G5, MAC mini
and laptop computers. The new Intel based Mac computers will also use
the PCI Express bus architecture.
Power Mac G5 computers
before November 2005, used a 3.3 Volt PCI /PCI-X bus architecture.
For these systems either the PCI-18V3 or the USB-18 host interface would be
required.
A
note about PC computers
There are many PC computers
manufactures, which makes it impossible for us to know the exact bus
architecture that is currently available. Many as still supporting
the original PCI bus, some are using a mixed PCI bus scheme and others have
adopted the new PCI Express standard. Please check the exact bus
specifications of your particular system before selecting a host interface.
A
note about USB2.0
USB2.0 comes in three speed
settings. The USB-18 requires a high-speed (480Mbps)
connection. Most newer computer systems are supplied with multiple
USB2.0 ports but only some of these ports are configured for high-speed
operation. The USB-18 will work on the slower ports but the transfer
rates will be greatly affected.
If your computer system
does not have high-speed USB2.0 ports then a USB2.0 adapter may be
used. These adapters are available in many different bus
configurations (PCI, PC Slot, etc).
Currently Available
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The
PCI-18 host interface card is a short form factor, 32-bit, 33 MHz 5 Volt
PCI bus plug in card. The PCI-18 is compatible with Apple, PC, and
other computer systems that feature a 5 Volt PCI Bus. Please note
that the PCI-18 can only be physically connected to a 5 Volt or Universal
PCI bus connector.
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The
PCI-18V3 host interface card is a short form factor, 32-bit, 33 MHz
3.3 Volt PCI bus plug in card. The PCI-18V3 is compatible with Apple
G5, PC, and other computer systems that feature a 3.3 Volt PCI Bus.
Please note that the PCI-18V3 can only be physically connected to a
3.3 Volt or Universal PCI bus connector.
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The USB-18 host interface
is a USB 2.0 high-speed (480 Mbps) interface for Apple, PC, and other
computer systems that feature USB 2.0 high-speed ports. Since the
USB-18 is an external adapter “box” it can be used with all ITC-18’s and
EPC 10Plus amplifiers produced.
An extra feature of the
USB-18 is the addition of sixteen asynchronous digital input and output
lines.
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PCI-18
Technical Specifications:
Form factor short, 32-bit, 33MHz,
5 Volt PCI
Type Slave I/O, PCI
2.0 compliant
Cable 6
foot shielded
Connectors DB-80
female,
high density
Available Drivers:
MacOS Classic
MacOS X (10.2 and above)
Windows 9x, ME, NT, 2000, XP and Vista
Linux
Drivers are available for download.
Warranty:
One
year parts and labor, except for cable
PCI-18V3
Technical Specifications:
Form factor short, 32-bit, 33MHz,
3.3 Volt PCI
Type Slave I/O, PCI
2.1 compliant
Cable 6
foot shielded
Connectors DB-80
female,
high density
Available Drivers:
MacOS Classic
MacOS X (10.2 and above)
Windows 9x, ME, NT, 2000, XP and Vista
Drivers are available for download.
Warranty:
One
year parts and labor, except for cable
USB-18
Technical Specifications:
Form factor external adapter
Type USB2.0 hi-speed
(480Mbps)
Cable 1
foot shielded, 4foot AB USB
Connectors DB-80
female, high density DB- 68 female
Digital inputs:
Number of inputs 16, logic level
Input type 3.3 and 5 Volt logic
Minimum pulse width 15 0nS
Input connectors DB-68 female,
high density
Maximum over voltage ±30 Volts D.C.
Digital outputs:
Number of outputs 16
Output driver 3.3 Volt, TTL, LS, ACT, and HCT compatible
Output connectors DB-68 female,
high density
Sink output current 3.2 mA
Source output current 3.2 mA
Power-on state logic low
Available Drivers:
MacOS X (10.2 and above)
Windows 2000, XP and Vista
Drivers are available for download.
Warranty:
One
year parts and labor, except for cables
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