Shure Microphone 527B User Manual

Model 527B User Guide  
Dynamic Communications Microphone  
Features  
• Extended low- and high-frequency response  
• Highly intelligible voice response  
• Unparalleled ruggedness and reliability  
• Moving coil (dynamic) element  
• ARMO-DUR case  
• “Million-Cycle” leaf-type switch controlling microphone and  
external relay or switching circuits  
• Modular construction for easy field service  
• “Lifetime” hang-up button and mounting bracket  
• Long-life neoprene-jacketed coil cord  
APPLICATIONS  
The 527B microphone is highly recommended for all types  
of mobile communications, ham radios, industrial and  
commercial paging systems, and outdoor public address  
systems. The 527B is a low-impedance microphone and is  
recommended where long cable lengths are required.  
GENERAL  
The 527B microphone is an extremely reliable handheld  
dynamic microphone with an extended low- and  
high-frequency response particularly suited to ham radio  
use, mobile FM transmission, and top-quality paging  
systems. The microphone has a clear, crisp, and natural  
voice response. It features small size, light weight, and  
modular construction.  
INSTALLATION  
A quick release mounting bracket for permanent installation  
is supplied with each microphone. The bracket has  
mounting holes with clearance for No. 6 or No. 8 screws  
(see Figure 4).  
The modular construction of the 527B permits ease of field  
serviceability. The design of the cartridge, switch, and cable  
makes them easily replaceable. The microphone is wired to  
prevent lead breakage or crimping.  
CONNECTIONS  
The unit fits naturally and comfortably in the hand and is not  
The internal switch connections of the 527B are shown in  
Figure 1. The 527B has a four-conductor, coiled cord cable  
and a double-pole, single-throw, leaf-type switch to control  
the microphone circuit and an external relay or switching  
circuit. The WHITE and GREEN leads are the audio  
conductors for balanced-line connection to the microphone  
circuit; the shield is connected to the microphone circuit  
ground (see Table 1).  
affected by heat or humidity. The exclusive ARMO-DUR  
case is immune to oil, grease, fumes, salt spray, sun, rust,  
and corrosion and is outstanding in its ability to withstand  
mechanical shocks and vibrations. The “Million-Cycle”  
leaf-type switch is designed to withstand severe operating  
conditions and constant usage.  
CARTRIDGE  
BUTTON MOVEMENT  
SWITCH  
CABLE  
WIRE  
COLOR  
FUNCTION  
XLR  
1/4 IN.  
CONNECTOR PHONE PLUG  
INPUT TYPE  
WHITE  
GREEN  
SHIELD  
WHITE  
GREEN  
SHIELD  
AUDIO +  
AUDIO -  
GROUND  
AUDIO  
PIN 2  
TIP  
BALANCED  
PIN 3  
RING  
BLACK  
RED  
PIN 1  
SLEEVE  
TIP  
-
-
-
BLACK  
GREEN  
WHITE  
UNBALANCED  
GROUND  
GROUND  
SLEEVE  
SLEEVE  
+
CABLE-TO-CONNECTOR WIRING  
TABLE 1  
INTERNAL CONNECTIONS  
FIGURE 1  
©2014 Shure Incorporated  
27C2083 (Rev. 7)  
Printed in U.S.A.  
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