GAI-Tronics 7085-005-UL, 7085-005-EX SmartSeries Multi-Party Hazardous Area Handset/Speaker Amplifier Enclosure w/ RTU Control - Manual (Page 8)

Pub. 42004-697L2B
Model 7085-005-UL/EX SmartSeries Multi-Party Haz. Area Amp. Enclosure with RTU Page 8 of 15
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Application
The SmartSeries Station RTU is designed for use with the SmartSeries amplifiers and handsets in a
standard multi-party Page/Party
® system. It is also possible to control an external device by activating and
deactivating a single relay circuit located in the SmartSeries station enclosure. This circuit is referred to as
a relay output. Terminal block TB3, located on the rear panel of the station enclosure, provides an
interface with this relay.
In addition to the relay output capability, the RTU also provides two inputs. These circuits provide an
interface to dry contact switches, (e.g., a pull box) that are monitored within the SmartSeries station. The
SmartSeries station reports any switch activation to the Master Control Unit (MCU).
The relay output is factory-set to be supervised through input #1. Refer to the chart on page 9. However,
you may elect to use input 1 by disconnecting supervision for the relay output.
Figure 7.