3M HEADSET C1060 Informazioni sul servizio - Pagina 8
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Theory of Operation and Diagrams
transmitted to the base station where it is
received, transmitted to other headsets and sent to
the monitor speaker amplifier.
Page Monitor Mode
The page monitor mode allows headset operators to
hear only page communication. In the page monitor
mode, talk audio output to the headset is muted. Only
internal page communication is heard because the
headset earphone amplifier is turned ON only when it
receives a page control tone. Talk transmissions from
other headsets or audio from the menu sign are not
heard.
Cross-Lane Talk/Listen Mode
The cross-lane talk/listen mode is available only in a
dual-lane duplex cross-lane system. The cross-lane
module in this system enables the menu sign operator
to selectively communicate (talk and listen) to
customers in either lane 1 or lane 2.
With the T1 (Talk Lane 1) switch pressed, the headset
transmitter/receiver switches to the lane 1 channel
frequencies, enabling the lane 1 base station and lane
1 communications.
With the T2 (Talk Lane 2) switch pressed, the headset
transmitter/receiver switches to the lane 2 channel
frequencies, enabling the lane 2 base station and lane
2 communications.
Monitor Amplifier and Speaker
A one-watt, single-ended monitor amplifier in the
base station powers [an optional] speaker which is
capable of reproducing the following signals:
Talk audio (communications to the menu speaker)
S
Listen audio (communication from the menu
S
speaker)
Page audio (internal store communications)
S
1-4
Wireless Intercom System
Vehicle alert tone
S
Separate volume controls adjust the level of each
signal to achieve the desired signal balance. In
addition, there is a master volume control which
adjusts the overall volume of the monitor speaker.
Headset Components
n Note
The receiver/transmitter and logic circuitry
contained in the headset housing is both proprietary
and non-field repairable.
Some models of the headset assembly have several
field-replaceable components. These components are
detailed in Section 3 of this manual (Replacement
Parts and Service).
The major components are as follows:
Rechargeable Battery
S
Headband
S
Microphone Boom Assembly
S
Speaker Assembly
S
Rechargeable Battery
The nickel metal hydride or lithium- -ion battery
provides DC power for the headset circuitry.
E 3M 2003
March