3 of 3
6/25/2007
#26658
724-746-5500
blackbox.com
Recognize any of these situations?
• You wait more than 30 minutes to get through
to a vendor’s tech support.
• The so-called “tech” can’t help you or gives you
the wrong answer.
• You don’t have a purchase order number and the
tech refuses to help you.
• It’s 9 p.m. and you need help, but your vendor’s
tech support line is closed.
According to a survey by Data Communications
magazine, 90% of network managers surveyed say
that getting the technical support they need is extremely
important when choosing a vendor. But even though
network managers pay anywhere from 10 to 20% of their
overall purchase price for a basic service and support
contract, the technical support and service they receive
falls far short of their expectations—and certainly isn’t
worth what they paid.
At Black Box, we guarantee the best value and the
best support. You can even consult our Technical Support
Experts before you buy if you need help selecting just
the right component for your application.
Don’t waste time and money— call Black Box today.
Why Buy From Black Box?
Exceptional Value. Exceptional
Tech Support. Period.
IEEE 1284.
Introduced in 1994, the IEEE 1284 standard addresses
data-transfer speeds and distance for parallel interfaces.
Standard parallel interfaces support speeds of up to 150 kbps
at distances of up to 6 feet (1.8 m); IEEE 1284 parallel
interfaces can send your data over 100 times faster at
up to 5 times the distance!
Although the Centronics
®
interface enabled only unidirec-
tional computer-to-peripheral data flow, the IEEE 1284
interface enables bidirectional flow so peripherals can send
data to the computer.
The IEEE 1284 standard covers five separate parallel modes,
from the original Centronics (with which it’s compatible) to
the high-performance Enhanced Parallel Port (EPP) mode.
The computer negotiates with the attached device to deter-
mine which mode to use.
Technically Speaking
Item
Code
IEEE 1284 Serial
→
Parallel Converter
PI049A