Shure 514B manual General, Connections, Operation, Mounting

Model 514B User Guide

GENERAL

The Shure 514B is a low impedance, dynamic, hand-held microphone designed for paging and public address sys- tems. It provides clear, natural voice response and high in- telligibility.

The 514B connects to microphone inputs rated at 19 to 300 Ω . It can be used in applications that require long cable lengths, or where severe hum conditions are present. For connection to high impedance inputs, use Shure A95 Series Line Matching Transformers.

The microphone is provided with a four-conductor (two shielded) coiled cable and a “Million-Cycle” leaf-type switch designed for constant use under the most rigorous condi- tions. The 514B fits naturally and comfortably in the hand and is not affected by heat or humidity. The exclusive ARMO-DURRcase resists mechanical shocks and vibra- tion, and is impervious to oil, fumes, salt spray, ultraviolet radiation, and corrosion.

Features

•Smooth, extended frequency response from 100 to 6,000 Hz—provides highly intelligible voice response

•“Million-Cycle” leaf-type switch—provides outstanding reliability, even under extreme conditions

•Tough ARMO-DURRcase

•Long-life, neoprene-jacketed, coiled cable

•Supplied mounting bracket fits hang-up button on back of microphone

CONNECTIONS

Refer to Figure 1 and Table 1 below. The GREEN wire is connected to the positive audio input, the WHITE wire is con- nected to the negative audio input, and the SHIELD is con- nected to chassis ground. The RED and BLACK leads con- trol the external relay or switching circuit.

	PRESS–TO-TALK
	SWITCH
	CABLE
CARTRIDGE	BLACK
	RED
YELLOW	GREEN
	WHITE
	SHIELD

INTERNAL CONNECTIONS

FIGURE 1

Table 1. Typical Cable-to-Connector Wiring

INPUT TYPE	WIRE	FUNCTION	XLR	1/4 IN.
	COLOR		CONNECTOR	PHONE JACK
	GREEN	AUDIO +	PIN 2	TIP
BALANCED	WHITE	AUDIO –	PIN 3	RING
	SHIELD	CHASSIS GROUND	PIN 1	SLEEVE

NOTE: The RED and BLACK leads are not part of the audio circuit. These wires provide a contact closure when the press-to-talk switch is depressed. This closure may be used to control an external relay or a transmit/receive circuit.

OPERATION

To operate the microphone, simply hold down the press- to-talk switch and begin speaking. Release the switch when you are finished speaking.

MOUNTING

The 514B is supplied with a mounting bracket to provide a snap-in hang-up for the microphone when it is not in use. The bracket has mounting holes with clearance for No. 8 screws. See Figure 2 below.

9.1 mm	MOUNTING HOLES,
	CLEARANCE FOR
(23/64 IN.)	No. 8 SCREWS
46 mm
(1-13/16 IN.)	10.3 mm
36.5 mm	(13/32 IN.)
(1-7/16 IN.)
4.7 mm	34.5 mm
9.5 mm (3/16 IN.)
(3/8 IN.)	(1-23/64 IN.)

MOUNTING BRACKET

FIGURE 2

 2002, Shure Incorporated

27B1387 (BJ)

Printed in U.S.A.