Shure 527B - Manual
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Model 527B User Guide
Dynamic Communications Microphone
©
2014 Shure Incorporated
27C2083 (Rev. 7)
Printed in U.S.A.
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.
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.
The unit fits naturally and comfortably in the hand and is not
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.
INTERNAL CONNECTIONS
FIGURE 1
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.
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).
CONNECTIONS
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).
CABLE-TO-CONNECTOR WIRING
TABLE 1
BLACK
RED
GREEN
WHITE
BLACK
BUTTON MOVEMENT
+
CARTRIDGE
SWITCH
CABLE
INPUT TYPE
WIRE
COLOR
FUNCTION
XLR
CONNECTOR
1/4 IN.
PHONE PLUG
BALANCED
WHITE
AUDIO +
PIN 2
TIP
GREEN
AUDIO -
PIN 3
RING
SHIELD
GROUND
PIN 1
SLEEVE
UNBALANCED
WHITE
AUDIO
-
TIP
GREEN
GROUND
-
SLEEVE
SHIELD
GROUND
-
SLEEVE
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