Electro-Voice PC Boundary Bedienungsanleitung

General Description:

PolarChoice Series:

PC Boundary

Multi-Pattern

Boundary Microphone

Key Features:

•Selectable polar pattern to easily adapt

to different acoustic environments.

Choose between omni, cardioid,

supercardioid or figure 8.

•Exceptional sound quality with EV’s

proven PolarChoice design.

•Consistent microphone voicing across

all four patterns.

•Easy to use mute switch. Can be

programmed to operate as either latching

on/off or momentary push-to-mute /

push-to-talk.

•Disassembly of the mic isn’t required to

change switch functions or for use with

automatic mixers.

•Compatible with echo cancellation for

conference applications.

•High visibility blue LED clearly displays

mic status to the user and can be

remotely controlled in automatic mixer

mode.

The PC Boundary mic is a low profile microphone that can be used with standard and automatic mic mixers. The PC

BoundarymicisamemberoftheEVPolarChoice™seriesofmulti-patternmicrophones.Themulti-patternversatility

ofthePolarChoice™microphonemakesitatrue“problemsolver”.Withonenon-directionalandthreedirectional

polarpatterns available,PolarChoice™microphonesareidealforvirtuallyanyinstallation.Ofparticularinterest is the

figure8patternthatallowsmiking people onoppositesidesofatable with onlyonemicrophone,whileprovidinga

dramaticreduction ofambientroomnoise.

ThePCBoundary mic features a large soft-touch mute button. The mute button can be configured for push-on /

pushoff,push-to-talk, or push-to-mute functions. Mute switch programming is easily accomplished without

disassemblingthe microphone. Themicrophonecanalsobeprogrammedtobeeitherliveormutedwhen power is

initially applied (when in toggle mode).Additionally, a switch on the bottom of the mic, quickly converts the PC

Boundary to automatic mixer mode. In this mode, audio is always on.

A large blue LED indicator lights when the mic is active, and can be remotely controlled when the mic is in automatic

mixermode.

ThePC Boundarymic isdesigned totake acoustic advantage of placing a microphone close toa “boundary”such as

conferencetable.Advantagesincludereducedphasecancellationandupto3dBreductioninambientnoise.

ThePC Boundarymicalsoincludesaswitchablehighpassfilter andahigh-performancevibration-dampingpadon

thebottomtogreatlyreduce any vibrationinducednoisepick-up.

PC Boundary

Switch Setting Guide:

Audio (Switches A & B)

A – Hi Pass Filter

Start with this switch set to the left (flat response). If the mic

is in a location where low frequency rumble or wind noise is

encountered, moving this switch to the right will help by

reducing low frequency sensitivity.

B – Polar Pattern

The cardioid polar pattern works well for most installations. If

feedback from a sound system occurs, switching to the

supercardioid pattern will usually allow increased mic gain

before feedback. The figure 8 pattern can be used to mic two

people sitting on opposite sides of a table, potentially reducing

the total number of mics required. The omnidirectional pattern

is best suited for situations where there is no sound

reinforcement system present, such as for recording.

Mute Switch Configuration (Switches C & D)

(The membrane switch on the top of the PC Boundary microphone.)

Momentary modes:

When switch “C” is set to the left, the mute switch action is momentary. (If switch “D” is in the left hand position, the mic will be in push-to-mute

mode. If switch “D” is in the right hand position, the mic will be in push-to-talk mode.)

Toggle Modes:

When switch “C” is in the right hand position, the mute switch will be in toggle (push-on / push-off) mode. (When the mic is in this mode, the

setting of switch “D” determines if the mic audio should be muted when power is first applied. If switch “D” is in the right hand position, the mic

audio will be muted when power is first applied. If switch “D” is in the left hand position, mic audio will be on when power is first applied.)

Logic Mode Select (Switch E)

When switch “E” is set to the left, the PC Boundary operates as a normal microphone. Mic muting and operation of the LED is controlled by the

pushbutton on the top of the mic.

When switch “E” is set to the right hand position, the mic will be in automatic mixer mode, and the following will apply:

1) Mic audio is always on.

2) The automatic mixer controls LED operation.

Logic Signals

Logic signal cable hookup guide:

Green – Logic Ground

White – Switch Logic

Orange – LED Control

If the PC Boundary mic is in momentary mode (see above section on the mute switch), the logic level on the white wire will normally be “high”, and

go “low” when the mute button is pressed. If the mute switch is set for toggle mode, the logic will toggle from high to low, or from low to high,

each time the button is pressed. (If desired, a pc board change can be done to force the logic to always be momentary, regardless of switch

settings. See diagram.)

LED Control

When the mic is in automatic mixer mode, a low logic signal on the

orange LED control wire will cause the LED to light.

Logic Ground Lift

If necessary, the logic and audio grounds can be separated. This

requires removing a resistor from the pc board. See diagram.

Figure 1:

Mic Switch Interface

Figure 3:

PCB Jumper Locations

Figure 2:

PCB Access

Remove the center

screw and grille to

access the pc

board.

Engineering Data Sheet

Technical Specifications:

Dimension Drawings:

Applications:

The PC Boundary is acoustically designed for high-quality sound reinforcement and broadcast applications. The frequency

response is tailored for wide-range sound reproduction with very natural sound pick-up. The PC Boundary microphone’s three

directional polar patterns allow the user to pick the directional polar pattern for optimum effect. For those applications where

gain-before-feedback is not a problem, an omnidirectional pattern is included. The PC Boundary microphone is ideal for

boardrooms, conference tables, or anywhere a high quality low profile microphone is required.

Generation Element:

Dual condenser, back electret

Frequency Response:

50 Hz to 20,000 Hz (see chart)

Polar Patterns: (see chart)

Omnidirectional

Cardioid

Supercardioid

Figure 8

Switches and Controls:

Top mounted momentary membrane switch

Automix, normal selector

Push on/off, or push-to-mute selector

Power up on/off selector

High-pass enable

4-position polar pattern selector

Sensitivity, Open Circuit Voltage, 1 kHz:

31.5mV/Pascal

Clipping Level (1% THD):

>115 dB SPL

Equivalent Noise:

29 dB SPL “A” weighted typical

(0 dB=20 micropascals)

Dynamic Range:

>86 dB

Output Impedance, 1 kHz:

200 ohms

Power Requirements:

Phantom, 12 – 52 VDC

Current Consumption:

< 8 mA with P12 supply

Cable: 10-foot, 5-conductor (2-conductor shielded) black

cable, terminated with a professional 3-pin male XLR

style connector with gold plated pins.

Polarity:Pin 2 positive, referenced to pin 3,with positive

pressure on the diaphragm

Dimensions:

110.4mm (4.34") long

164.6mm (2.54") wide

25.8mm (1.02") high

Weight: 269 grams (9.5 oz), including cable

U.S.A. and Canada only. For customer orders, contact Customer Service at:

800/392-3497 Fax: 800/955-6831

Europe, Africa, and Middle East only. For customer orders, contact Customer Service at:

+ 49 9421-706 0 Fax: + 49 9421-706 265

Other International locations. For customer orders, contact Customer Service at:

+ 1 952 884-4051 Fax: + 1 952 736-4212

For warranty repair or service information, contact the Service Repair department at:

800/553-5992 or 402/467-5321

For technical assistance, contact Technical Support at: 800/392-3497 or 952/736-4656

Specifications subject to change without notice.

12000 Portland Avenue South, Burnsville, MN 55337

Phone:952/884-4051, Fax: 952/884-0043

www.electrovoice.com

Part Number LIT000111 Rev.B

Architectural & Engineering Specs:

Frequency Response: Polar Response:

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PC Boundary

Themicrophone shallbe a low profile boundarymicrophone. The microphone will have a10-foot integral 5-conductor, 2-

conductorshielded cable terminated in a3-pin XLRM connector.The microphone shall have four selectablepolar

patterns:omnidirectional, cardioid, supercardioid, andfigure 8. The micwill use a pairof back-electret condenser

elements with a frequency response of 50 Hz to 20 kHz. The microphone shall have a nominal, balanced output

impedanceof 200 ohms.The microphone willhave a switchablehigh-pass filter toroll off lowfrequencies. The

microphone shall have an output level of 5.6 mV/Pascal and outputs shall not be appreciably affected by the following

temperature and humidity extremes: -29° to 74° C (-20° to 165°F) when the relative humidity is 0-50%; -29° to 57°C (-

20° to 135°F) when the relative humidity is 0-95%. Dimensions shall be 110.4 mm (4.34 in.) long by 64.6mm (2.54 in.)

wide by 25.8mm (1.02 in.) high. The microphone will feature a top mounted membrane switch and a status LED that

lightswhen audio is active. The membrane switch will be configurable to operate in either momentary or toggle mode.

When the microphone is set in momentary mode, the membrane switch can be programmed to operate in either push-

to-mute or push-to-talk mode. When the microphone is set in toggle mode and power is initially applied, the status of

themicrophone can be programmed to be either on or muted. Themicrophone will be capable of operation with

automatic mixers by means of a configuration switch located on the bottom of the microphone. When the microphone

is in automatic mixer mode, normal LED and top push button functions are disabled. In automatic mixer mode, audio

will always be on, the top push button will only change the logic level on the microphone’s white wire, and a logic low

level on the microphone’s orange wire will cause the LED to illuminate.All controls except for the push button shall be

accessiblefrom the bottom of the microphone base. The microphone base

and grille shall be of metal construction. The microphone shall have a

nonreflectingblack finish.The Electro-Voice PC Boundary microphone is

specified.

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