Black Box LMC001A-R5 Скачать руководство пользователя страница 2

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FEATURES

• Connections for 850-nm multimode,

1300-nm multimode, and 1300-nm
single-mode fiber.

• Various models support 10BASE-T,

10BASE2, 100BASE-TX, 100BASE-FX, 
and 100BASE-SX protocols and cabling
standards.

• LinkLoss and FiberAlert notify network

managers of “silent failures.”

• Externally accessible port settings.

• RoHS compliant.

12/7/2007
#20400

724-746-5500

   blackbox.com

OVERVIEW

Compact Media Converters are low-cost, fixed-configuration

media converters. Converters with 10-Mbps modules provide
a single conversion between 10BASE-T and either 10BASE2
(ThinNet) or multimode or single-mode fiber. Converters with
100-Mbps modules provide conversion between 100BASE-TX
and either 100BASE-SX multimode fiber or 100BASE-FX
multimode or single-mode fiber.

At only 1U high, these units are extremely compact. All

selectable features are externally accessible, and each port
includes diagnostic LEDs. Twisted-pair ports feature a straight-
through/crossover switch. BNC ports feature a termination
switch.

An autosensing power supply is built into each converter,

so there’s no need to buy any additional equipment.

To assist you in pinpointing link faults between media-

conversion products, the media converters feature LinkLoss

and FiberAlert

.

When the fiber segment has a link fault, LinkLoss passes 

the fault to the twisted-pair segment and drops the twisted-
pair link LED.

When a fiber optic receive fault is detected, FiberAlert

makes the link LED for the opposite end of the fiber conver-
sion pulse, indicating that there’s a problem and eliminating
“silent failures.”

You can enable or disable LinkLoss/FiberAlert via a DIP

switch located on the bottom of any converter unit.

The LMC009A-R4 includes two external switches, one 

that selects termination on the BNC port and one that selects
crossover for the UTP port. The other converters include an
external MDI-X switch for selecting crossover or passthrough
twisted-pair connections on the UTP port.

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.

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