GAI-Tronics DEX-101 Hazardous Area Driller's Intercom Station - Manual (Page 3)

Pub. 42004-679L2G
M ODEL DEX-10 X AND DEX-20 X D RILLER ’ S I NTERCOM S TATIONS Page 2 of 13
f:\standard ioms - current release\42004 instr. manuals\42004-679l2g.doc
07/13
Features and Functions
 Digital and analog models  Factory sealed
 120–240 V ac and 24 V dc models  Suitable for Div. 1 & 2 and Zone 1 & 2 Hazardous Areas
 NEMA-4X rated enclosure  Suitable for high noise areas
 18-watt speaker amplifier  Hands-free duplex and simplex communication
 Speaker volume control  All-call and group paging
 Beacon control (digital models only)  Broadcast of alarm and music signals
 Footswitch input
 Master/slave and point-to-point communications
 Call status indicator  System upgrade and expansion capability
 UL Approved
Available Models
DEX-101
Analog Intercom Station - 24 V dc (UL)
DEX-201
Analog Intercom Station - 120 V ac (UL)
DEX-102
Digital Intercom Station with keypad - 24 V dc (UL)
DEX-202
Digital Intercom Station with keypad - 120 V ac (UL)
Description of Major Components
The Driller’s Intercom stations consist of a factory-sealed enclosure (top) and a termination enclosure
(bottom). Refer to Figure 1 for details. The factory-sealed configuration eliminates the need for external
seals on this unit; however, additional seals may be required on auxiliary devices.
The audio, control, and power components for this assembly are contained in the factory-sealed
enclosure. The front panel of the factory-sealed enclosure contains the user interface components
(microphone, status LED, and keypad [digital models only]).
All system terminations (power, speaker, system, footswitch, and beacon) are to be made in the
termination enclosure.
This station requires an external speaker (sold separately) to operate. Also, a customer-supplied beacon
(digital models only) and footswitch can be added to this unit for visual status indication and talk/listen
control.
CAUTION
Use only suitably listed components for the hazardous area.