JBL CSPM-1, Quick Start Manual

Page: 3 / 8

The JBL Commercial ® CSPM series microphones
(CSPM-1, CSPM-2, and CSPM-4) are dynamic
close-talking microphones for paging systems and
loudspeaker systems in airports, underground stations,
department stores, etc..
CSPM-1 Schematic
CSPM-2 Schematic
CSPM-4 Schematic
G
G
Setting Up
Button Functions
1
2
PUSH TO TALK (PTT) Button
CSPM-1: The microphone is on when the PTT button is
pressed. The microphone is switched off when the PTT
button is released.
CSPM-2, CSPM-4: When the PTT button is on (pressed),
zone buttons are connected to the “G” pin and sound
will be routed according to the state of the zone buttons.
When the PTT button is off, the zone buttons are opened
and no sound will be sent to any zones.
ZONE Button
Press the zone buttons to select which zones will receive
the paging announcement once the PTT button is
pressed.
An example of using the buttons in a public address
application is:
1. Press the
Zone 1 button.
2. Press the PUSH TO TALK button and speak. Your
page will be delivered to Zone 1.
Operation and Application
Maintain a gap between the speaker’s mouth and the
microphone, and do not exceed the maximum bend
angle. Only bend the flexible part of the microphone.
In the case of microphones with cardioid polar
pattern, most sound attenuation occurs at 180°. These
microphones should preferably be used where there is
an interference noise source or a loudspeaker directly
opposite the speaker.
1