Avaya EA20R User Manual
Avaya Inc.
211 Mt. Airy Road
Basking Ridge NJ 07920
Explosive Atmosphere Line Powered Telephone Ringer
Model EA20R
Installation and Operation
EA20R EXPLOSION PROOF RINGER
LR 65547-31
CL.I, DIV.1, GR.B,C&D
CL.I, ZONE 1, GR.IIB+H2
CL.II, DIV.2, GR.F&G
CL.III, HAZARDOUS LOCATIONS
TEMP. CODE T5
CAUTION: CONDUIT RUNS MUST HAVE A SEALING FITTING INSTALLED WITHIN
WARNING: TO REDUCE THE RISK OF IGNITION OF HAZARDOUS ATMOSPHERES, DISCONNECT FROM SUPPLY CIRCUIT BEFORE OPENING.
KEEP ASSEMBLY TIGHTLY CLOSED WHILE CIRCUITS ARE ALIVE. COVER JOINTS MUST BE CLEANSED BEFORE REPLACING COVER.
18 INCHES OF THIS ENCLOSURE.
WITHOUT PROJECTION HORN
MODEL NUMBER: EA20R
COMCODE:
SERIAL NUMBER:
RING VOLTAGE: 42 - 110V AC @ 16 - 25Hz.
CURRENT: 7 - 20mA. REN: 4
700302052
AUDIBLE SIGNAL APPLIANCE FOR
USE IN HAZARDOUS LOCATIONS
CL.I, DIV.1, GR.B,C&D
CL.I, ZONE 1, GR.IIB+H2
R
LISTED
66LN
P005982 Rev. A 11/13/2003 5:25 PM
Avaya Inc.
Installation and Operation
Table of Contents
Package Contents......................................................................................................2
Overview ....................................................................................................................3
Features.....................................................................................................................3
Installing the EA20R...................................................................................................6
Maintenance...............................................................................................................6
Engineering Specifications.........................................................................................7
Warranty.....................................................................................................................8
Disclaimer ..................................................................................................................8
Warning......................................................................................................................8
Service Telephone Number........................................................................................8
Avaya Product Return................................................................................................9
Table of Figures
Figure 1 - Overall Dimensions....................................................................................4
Figure 2 - Electrical Connections ...............................................................................4
Figure 3 - Wiring Alternatives.....................................................................................5
Model EA20R
Package Contents
(1) EA20R Explosive Atmosphere Line Powered Ringer
(1) Installation & Operation Manual
Page 2
Avaya Inc.
Installation and Operation
Model EA20R
Overview
EA20R Explosive Atmosphere Line Powered Telephone Ringer
The EA20R is an Industrial Telephone Ringer designed to provide safe, reliable service in hazardous
areas. It is telephone line powered requiring no additional source of power. The unit is housed in a
rugged, weather and corrosion resistant enclosure that ensures operation in severe conditions.
The EA20R responds to an incoming ringing signal of 42 to 110 VAC at 16 to 25 Hz.
Features
Enclosure
• cast copper free aluminum, powder coated
Flame Arrestor
• Sintered Bronze
Sound Levels
• Greater than 85dB at one meter
Compatibility
• Compatible with any telephone system having ringing voltage,
frequency and power available within the specified range
Page 3
Avaya Inc.
5.4" [136mm]
Installation and Operation
Model EA20R
5.4" [136mm]
AVAYA
EA20R EXPLOSION PROOF RIN GER
WITHOUT PROJECTION HORN
LR 65547-31
MODEL NUMBER: EA20R
CL.I, DIV.1, GR.B,C&D
COMCODE:
CL.I, ZONE 1, GR.IIB+H2
CL.II, DIV.2, GR.F&G
SERIAL NUMBER:
CL.III, HAZARDOUS LOCATIONS
RING VOLTAGE: 42 - 110V AC @ 16 - 25Hz.
TEMP. CODE T5
CURRENT: 7 - 20mA. REN: 4
CAUTION: CONDUIT RUNS MUST HAVE A SEALING FITTING INSTALLED WITHIN
18 INCHES OF THIS ENCLOSURE.
WARNING: TO REDUCE THE RISK OF IGNITIO N OF HAZARDOUS ATMOSPHERES, DISCONNECT FROM SUPPLY CIRCUIT BEFORE OPENING.
KEEP ASSEMBLY TIGHTLY CLOSED WHILE CIRCUITS ARE ALIVE. COVER JOINTS MUST BE CLEANSED BEFORE REPLACING COVER.
R
LISTED
66LN
AUDIBLE SIGNAL APPLIANCE FOR
700302052
USE IN HAZARDOUS LOCATIONS
CL.I, DIV.1, GR.B,C&D
CL.I, ZONE 1, GR.IIB+H2
Figure 1 - Overall Dimensions
1/2" NPT CONDUIT ENTRANCES
TIP
RING
5.0" [128mm]
Figure 2 - Electrical Connections
Page 4
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