2
Clocking:
Internal, external, receive
Line Type:
(2) twisted pair
Operation:
2-wire half-duplex or
2- or 4-wire half- or full duplex,
point-to-point or multipoint
Speed (Maximum):
57.6 kbps
Distance:
5.3 mi. (8.5 km) to 11.4 mi.
(18.3 km) over 24 AWG wire
Protocol:
Synchronous or
asynchronous
User Controls:
(2) toggle switches:
511/511E, Remote/Normal/Local
Interface:
RS-232 (DCE)
Connectors:
(1) DB25 female,
(1) RJ-45, (1) terminal block
Indicators:
(6) LEDs: TD, RD, RTS,
CD, Error, and Test
Power:
120/230 VAC, 50/60 Hz,
switch-selectable
Size:
1.5"H x 4.2"W x 5"D
(3.8 x 10.7 x 12.7 cm)
Weight:
1 lb. (0.5 kg)
Host
computer
PCs
Async/Sync
Short-Haul
Modem
Async/Sync
Short-Haul
Modems
Specifications
Ordering Information
ITEM
CODE
Async/Sync Short-Haul Modem ............................ME475A
You might also need cable…
GigaBase
®
350 CAT5e, 350-MHz Bulk Cable, 4-Pair,
PVC, 1100-ft. (335.2-m) Boxed Reel,
Blue ................................................................EYN851A-1100
(For other colors or plenum cable, call our FREE Tech
Support.)
Connect five PCs to a
host computer in a
multipoint configuration.
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.
