GAI-Tronics 709-901 Руководство пользователя - Страница 3
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M
709-901 S
S
ODEL
MART
ERIES
Features and Functions
Monitors and controls the handset and
auxiliary connections, if equipped.
Measures the ambient noise and adjusts
the speaker output level accordingly.
Supervises the local speaker.
Description of Major Components
This assembly includes external components accessible to the user as well as internal components or
subassemblies.
External Components
As shown on the bottom view of Figure 1, the assembly includes a connector for the push-to-page
operator, a hookswitch and handset connector, and a connector for the RTU connection. When the
handset on the front of the enclosure is lifted from the cradle or replaced in the cradle, a hookswitch (a
magnetic reed switch) signals the appropriate status to the microcontroller within the assembly. In the
center of the front panel, the GAI-Tronics nameplate conceals the User Level Adjustment control.
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H
/S
A
ANDSET
PEAKER
MPLIFIER
Supports an optional SmartSeries station RTU, which
monitors and supervises input and output devices.
Supports an optional party line End-of-Line Module,
which supervises party line 1.
Transfers data messages and audio on the system cable.
Figure 1. Model 709-901 Outline Drawing
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AGE