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TECH SPECS
Clock — Internal or external
Diagnostics — Bidirectional loopback (async)
Operation — Full or half-duplex
Protocol — Async or sync
Speed — 1.2, 2.4, 4.8, 9.6, 19.2, and 38.4 kbps
User Controls — (3) switches: Ring Indicator (RI), Control Data Set Ready
(CON), Digital Loopback Test Mode (LB)
Interface — RS-232
Connectors — (2) DB25 F
Indicators — (6) LEDs: DSR, CTS, TXD for each of the two ports
Power — 115 VAC/60 Hz, 10 watts
Size — 1.8"H x 5.5"W x 8.6"D (4.6 x 14 x 21.8 cm)
Weight — 2 lb. (0.9 kg)
Item Code
Synchronous Modem Eliminator (SME-4M) for RS-232
38.4-kbps
Standalone (115-VAC) ME251A-R3
For optimum performance and a 20% savings, order…
RS-232 Cable, 25-Conductor, 10-ft. (3-m) ECM25C-0010
2/22/2007
#10205
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
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far short of their expectations—and certainly isn’t worth
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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.
724-746-5500 blackbox.com