Black Box MC140A Manual de usuario

SEPTEMBER 1996

MC140A MC144A

MC141A MC145A

MC142A MC146A

MC143A MC147A

RF Filters

CUSTOMER SUPPORT INFORMATION

Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX

FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: [email protected]

2

RF FILTERS

Specifications

Number of Lines —

For single-line phones:

MC140A, MC141A, MC142A, MC143A;

For two-line phones:

MC144A, MC145A, MC146A, MC147A

Frequency Range —

MC140A, MC144A: 0.5 to 3 MHz

MC141A, MC145A: 3 to 30 MHz

MC142A, MC146A: 26 to 60 MHz

MC143A, MC147A: 100 MHz

Attenuation (Nominal) — 50 dB

Connectors — One-Line models: (1) male,

(1) female RJ-11;

Two-Line models: (1) male, (1) female RJ-14

Power — None required

Size — 2.25"L ×0.8"H ×0.75"D

(5.7 ×2×1.9 cm), with 5-inch (12.7-cm) cord

attached

Weight — 0.9 oz. (26 g)

3

RF FILTERS

Installation

Installing an RF Filter is as easy as plugging in

a phone.

1. Unplug the line cord (the cord that goes

to the wall outlet) from the back of your

telephone.

2. Plug the cord on the end of the RF Filter

into the line-cord input on the telephone.

3. Plug the line cord into the RF Filter.

That’s all—the filter is installed.

If you still hear interference on your phone, you

might need filters in other places in your phone

system. Call Black Box Technical Support at

724-746-5500 for advice; we might be able to give

you a quote on RF noise filters for other locations

on your phone lines.

For more information on telephone interference,

call our FaxBack system, also at 724-746-5500,

and order Document Number 17099.

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746

© Copyright 1996. Black Box Corporation. All rights reserved.

Este manual sirve para los siguientes modelos

7

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