Shure Microphone 27B1387 User Manual

Model 514B User Guide  
CONNECTIONS  
Refer to Figure 1 and Table 1 below. The GREEN wire is con-  
nected to the positive audio input, the WHITE wire is connected to  
the negative audio input, and the SHIELD is connected to chassis  
ground. The RED and BLACK leads control the external relay or  
switching circuit.  
PRESS–TO-TALK  
SWITCH  
CABLE  
BLACK  
CARTRIDGE  
RED  
GREEN  
YELLOW  
WHITE  
SHIELD  
INTERNAL CONNECTIONS  
FIGURE 1  
Table 1. Typical Cable-to-Connector Wiring  
WIRE  
COLOR  
FUNCTION  
XLR  
CONNECTOR  
1/4 IN. PHONE  
JACK  
GENERAL  
INPUT TYPE  
The Shure 514B is a low impedance, dynamic, hand-held  
microphone designed for paging and public address systems. It  
provides clear, natural voice response and high intelligibility.  
The 514B connects to microphone inputs rated at 19 to 300 .  
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 Trans-  
formers.  
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 conditions. The  
514B fits naturally and comfortably in the hand and is not affected  
by heat or humidity. The exclusive ARMO-DURcase resists  
mechanical shocks and vibration, and is impervious to oil, fumes,  
salt spray, ultraviolet radiation, and corrosion.  
GREEN  
AUDIO +  
PIN 2  
TIP  
BALANCED  
WHITE  
AUDIO -  
PIN 3  
PIN 1  
RING  
SHIELD  
CHASSIS GROUND  
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 fin-  
ished speaking.  
MOUNTING  
Features  
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.  
Smooth, extended frequency response from 100 to 6,000 Hz-pro-  
vides highly intelligible voice response  
“Million-Cycle” leaf-type switch-provides outstanding reliability,  
even under extreme conditions  
Tough ARMO-DUR case  
Long-life, neoprene-jacketed, coiled cable  
Supplied mounting bracket fits hang-up button on back of  
microphone  
MOUNTING HOLES,  
9.1 mm  
CLEARANCE FOR  
No. 8 SCREWS  
(23/64 IN.)  
46 mm  
(1-13/16 IN.)  
10.3 mm  
(13/32 IN.)  
36.5 mm  
(1-7/16 IN.)  
4.7 mm  
(3/16 IN.)  
34.5 mm  
(1-23/64 IN.)  
9.5 mm  
(3/8 IN.)  
MOUNTING BRACKET  
FIGURE 2  
©2003, Shure Incorporated  
27B1387 (Rev. 4)  
Printed in U.S.A.  
 

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