ClearCom KB-212 Manual de Instruções descarregar pdf (Página 16)

Clear-Com Communication Systems

Encore System Installation Instruction Manual

1-10

• Pin 2 --- Mic hot

• Pin 3 --- Headphone common

• Pin 4 --- Headphone hot

The mic and headphone wiring in the headset cord must be

individually shielded. Do not connect Pins 1 and 3 together.

Headset extension cords or headset "Y" cables are not

recommended because they will increase crosstalk between

channels.

• Panel Mic Connector: Clear-Com recommends the GM-9 and

GM-18 plug-in panel microphones for use with all stations having

a panel mic connector. The GM-9 is 9 inches long and the GM-18

is 18 inches long. The microphone is an electret type. The 1/4

inch phone jack on the microphone mates with the Panel Mic

receptacle on the front panel.

To install a GM-9 or GM-18 microphone, use the following steps:

1. Check the set screw in the mic mounting flange to make sure it

is clear of the threads in the bushing.

2. Screw the microphone into the bushing hand tight.

3. Set the set screw on top of the bushing to lock the microphone in

place.

• Hot Mic Out / IFB System: Some Main and Remote Stations

have an interface to the External Line In jack on Clear-Com's IFB

System. This connection is a 1/4 inch phone jack on the rear

panel. It provides a 0 dBu output signal from the selected

headset or panel microphone on the station. It connects using a

standard 2-wire and shield stereo 1/4 inch plug-to-plug cable

such as the Clear-Com P/N 73016501 (18 inch) or P/N 73016502

(5 foot). It allows the station's microphone to be used to cue

talent through the IFB System. A control signal sent into this

connector from the IFB System can optionally disconnect the

station's microphone from the intercom line(s). The jack is wired

as follows:

• Ring --- Ext. IFB Control Signal Input

• Tip --- Hot Mic Audio Output

• Sleeve --- Ground (Shield)

• Stage Announce Output: Some Main and Remote Stations

have a 3-pin XLR male connector on the rear panel to feed into a

studio PA. Pressing the Announce button on the front panel

places the audio from the selected headset or panel microphone

on the rear panel connector. Optionally, pressing the Announce

button can also disconnect the selected headset or panel

microphone from the intercom line(s). This option is controlled by

the Interrupt Announce option switch. Simultaneously, if the

program audio feed to the Announce Output is enabled, it is

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