Shure 522 Bedienungsanleitung

Model 522 User Guide

27C687 (Rev. 6) Printed in U.S.A.

MODEL 522

BASE-STATION MICROPHONE

The Model 522 is a dynamic base-station microphone for radio

communications, paging, and dispatching systems. Its cardioid

(unidirectional) pickup pattern suppresses unwanted background noise

from nearby dispatchers, ventilating equipment, or office machines.

It also can reduce feedback in public address paging applications.

Features

• Dual impedance (19 to 300 ohms or High)

• lmpedance change switch for convenient change-over

• Finger-tip control bar (locking or non-locking action) to actuate

microphone circuit and an external relay or control circuit

• Long-life switch to satisfy rigorous requirements of

communications and paging systems

• Sturdy, high impact ARMO-DUR®‚ base and microphone case

• Adjustable microphone height

• Dependable under most operating conditions

PRESS-TO-TALK SWITCH OPERATION

Press and hold the bar switch to talk. To lock the switch, press and pull it

forward. To unlock the switch, move the bar back and release.

IMPEDANCE SELECTION

Use the switch located under the microphone base, near the cable entry,

to select high ("HI") or low ("LO") impedance.

Use the low-impedance position for long cable lengths under conditions

of severe hum disturbance. Use Shure Model A95 Series Line Matching

Transformers when using a low-impedance microphone line with a high-

impedance amplifier input.

LOGIC CONNECTIONS

The RED and BLACK leads may be used to control an external relay or

switching circuit.

AUDIO CONNECTIONS

Unbalanced high-impedance operation:

Set the impedance switch to the “HI” position (as shipped). Connect the

GREEN cable lead and the shield to the amplifier chassis ground. The

WHITE cable lead is the “hot” conductor.

Balanced-line low-impedance operation:

Set the impedance switch to the “LO” position. Connect the shield to the

amplifier chassis ground. The WHITE and GREEN cable leads are the

“hot” conductors.

Table 1. Cable-to-Connector Wiring

INPUT TYPE WIRE

COLOR

FUNCTION XLR

CONNECTOR

1/4 IN.

PHONE

PLUG

UNBALANCED

WHITE AUDIO PIN 2 TIP

GREEN AUDIO

GROUND

PIN 3 SLEEVE

SHIELD CHASSIS

GROUND

PIN 1 SLEEVE

BALANCED

WHITE AUDIO + PIN 2 TIP

GREEN AUDIO – PIN 3 RING

SHIELD CHASSIS

GROUND

PIN 1 SLEEVE

Asia, Pacific:

Shure Asia Limited

22/F, 625 King’s Road

North Point, Island East

Hong Kong

Phone: 852-2893-4290

Fax: 852-2893-4055

Email: [email protected]

United States, Canada, Latin

America, Caribbean:

Shure Incorporated

5800 West Touhy Avenue

Niles, IL 60714-4608 USA

Phone: 847-600-2000

Fax: 847-600-1212 (USA)

Fax: 847-600-6446

Email: [email protected]

Europe, Middle East, Africa:

Shure Europe GmbH

Jakob-Dieffenbacher-Str. 12,

75031 Eppingen, Germany

Phone: 49-7262-92490

Fax: 49-7262-9249114

Email: [email protected]

SPECIFICATIONS

Type

Dynamic

Frequency Response

60 to 11,000 Hz

Polar Pattern

Cardioid

Impedance

Dual. Microphone rating impedance is 150 ohms (260 ohms actual) for

connection to microphone inputs rated at 19 to 300 ohms and "High"

for connection to high-impedance microphone inputs. Switch is in high-

impedance position as supplied.

SENSITIVITY (at 1,000 Hz): LOW HlGH

Open Circuit Voltage* -57.5 dB -38.5 dB

(Ref. 1V/Pascal (1.3 mV) (12 mV)

*(1 Pa = 94 dB SPL)

Switch

Press-to-Talk Switch: lockable, for microphone and an external relay or

control circuit. Microphone circuit normally shorted in both high and low

impedance.

lmpedance Selection Switch: provides either high- or low-impedance

operation.

Cartridge Shock Mount

lnternal rubber vibration-isolator

Cable

2.1 m (7 ft) four-conductor, two conductors shielded non-detachable

Case

Two-tone gray ARMO-DUR‚ with dull-chrome-plated steel screen

Net Weight

736 grams (1 Ib 10 oz)

Shipping Weight

1020 grams (2 Ib 4 oz)

REPLACEMENT PARTS

Cable ......................................C31C

On-Off Switch ..............................K141S

For additional service or parts information, please contact

Shure's Service department at 1-800-516-2525. Outside

the United States, please contact your authorized Shure

Service Center.

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