Clear-Com RS-603 (No longer available) User Manual

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R S - 6 0 3 / 6 2 3 / R B E L T P A C K S

Some onboard and computer programming options can change the
function of this light. See “Customizing Your Beltpack” for more
information.

Call Buttons, Channels A and B

When you press a channel’s call button, a call signal is sent to all other
stations on that channel. Pressing the Call A button sends a call signal
on channel A. Pressing the Call B button sends a call signal on
channel B.

A channel’s call light glows red to indicate both outgoing and
incoming call signals on the channel.

Note: Depending on the type and length of cables attached to the beltpack,
crosstalk between cables may cause both channels to indicate a 20 kHz AC
call signal that is sent on only one channel.

Volume-Control Knob, Channel A

The volume-control knob for channel A adjusts the incoming volume
level (“listen level”) for that channel.

There is a limiter built into the beltpack circuitry to prevent incoming
volume from exceeding a safe level. You can suspend this limit with
the V-Pack software.

The volume A control knob also adjusts mic gain (either main or
auxiliary). Refer to “Customizing Your Beltpack” for more
information on adjusting outgoing volume.