Black Box ME615A Bedienungsanleitung

Async transmission up

to 115.2 kbps.

Operates full duplex

over 4-wire; alf-

duplex over 2-wire or

4-wire.

Meets ITU RS-485

requirements.

Operates over

multimode or single-

mode fiberoptic cable.

Point-to-point or

multipoint applications

up to 32 units in

RS-485.

Miniature, lig tweig t,

and easy to install.

erfect for utility applications

such as the one shown in the

diagram on page 2, the Async

Mini Fiber Optic Modem can

transmit an RS-4 5 signal via a

fiber optic link. The asynchronous

data rate can be up to 115.2 kbps

in full- or half-duplex mode.

The Modem performs

diagnostic loops in compliance

with the ITU V.54 standard. Two

V.54 loops are available: local

analog loop (loop 3) and remote

digital loop (loop 2). The loops are

activated by external DIP

switches on the top of the

Modem. Local digital loop is also

available.

The Modem includes a built-in

V.52 standard BER tester which is

also activated by an external DIP

switch on the top of the modem.

Transmit an RS-485

signal via a

fiber optic link.

KeyFeatures

ASYNCMINIFIBEROPTICMODEMS

Async Mini Fiber Optic

Modems models are all RS-4 5

with ST connectors. Select 115- or

230-VAC modems that work with

50-nm multimode or 1300-nm

single-mode fiber optic cable.

The Modem derives its power

from a standard wall-mounted DC

power supply adapter. The DC

voltage range is 300 mA to 9 V.

All the advantages of a fiber

optic system are yours with the

Modem:

• Lower attenuation than with

copper wire.

• EMI/RFI immunity, saving the

cost of expensive and heavy

shielding, and complex error-

checking routines.

• Almost absolute security;

you save money otherwise

spent for data encryption.

• Protects against

eavesdropping, since

negligible power radiates from

the fiber.

• Safety and electrical

isolation: no spark hazard and

no ground-loop problems.

Installing the modem is easy.

Simply set a couple of switches

and jumpers for full or half-duplex,

4-wire or 2-wire operation, and

carrier delay. Six diagnostic LEDs

tell you modem status at a glance.

Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-101 • Tech Support: 724-746-5500 • www.blackbox.com • e-mail: [email protected]

Black Box Corporation.

9/29/2000 #24909

DTE Link

Data Rate: Up to 115.2 kbps

Pulse with Distortion: Less than

25%

Transmission Mode: Full- or half-

duplex, switch-selectable

Interface Type: RS-4 5 over 2- or

4-wire, switch-selectable

DTE Connector: (1) 5-screw terminal

block

Fiber Optic Link

Transmission Line: Optical duplex

cable

Transmission Mode: Full- or half-

duplex

ptical utput Level: -1 dBm over

62.5/125-µm fiber; -1 dBm over

9/125-µm fiber

ptical Wavelength: ME615A,

ME615AE: 50 nm, multimode;

ME616A, ME616AE: 1300 nm,

single-mode

Fiber ptic Connectors: (1) pair of

ST®

eneral

perating Budget: ME615A,

ME615AE: Up to 22 dB in full

duplex; ME616A, ME616AE: Up to

24 dB in full duplex

Temperature Tolerance: 32 to 122°F

(0 to 50°C)

Humidity: Up to 90%, non-

condensing

Power: 9 volts, 300 mA

Size: 0.9"H x 2.1"W x 3.9"D (2.3 x 5.3 x

9.9 cm)

Weight: 4.9 oz. (139 g)

TypicalApplication

Host

RS-4 5

Interface

RS-4 5

Interface

Async Mini Fiber

Optic Modem

Async Mini Fiber

Optic Modem

Async Mini Fiber

Optic Modem

Async Mini Fiber

Optic Modem

Async Mini Fiber

Optic Modem

Remote

Terminal Unit

Remote

Terminal Unit

Remote

Terminal Unit

Remote

Terminal Unit

Async Mini Fiber

Optic Modem

Async Mini Fiber

Optic Modem

Async Mini Fiber

Optic Modem

Specifications

Ordering Information

ITEM CODE

Async Mini Fiber Optic Modem, RS-4 5

ST connectors, 50-nm multimode fiber

115 VAC.................................................................ME615A

230 VAC...............................................................ME615AE

ST connectors, 1300-nm single-mode fiber

115 VAC.................................................................ME616A

230 VAC ..............................................................ME616AE

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.

WhyBuyFromBlackBox?Exceptional

Value.ExceptionalTechSupport.Period.

Andere Handbücher für ME615A

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