Avaya EA401 Owner's manual

Avaya Inc.
211 Mt. Airy Road
Basking Ridge NJ 07920
P005975 Rev. A 11/13/2003 5:24 PM
Explosive Atmosphere Telephone
Model EA401
Installation & Operation
WARNING
FIELD REPAIR NOT POSSIBL E. FOR SERVICE RETURN TO FACTORY. TO PREVENT
IGNITION OF HAZARDOUS ATMOSPHERE, DISCONNECT FROM THE SUPPLY CIRCUIT
BEFORE OPENING OR REPLACING FUSE. KEEP TIGHTL YCLOSED WHEN CI RCUITS
ARE ALIVE. ALL CONDUIT RUNS MUST BE SEALED WITHIN 18 INCHES (450 mm) OF
THIS ENCLOSURE. BREAKING OF REAR BOLT SEALSVOIDS MANUFACTURER'S
WARRANTY. S UBSTITUTIO N OF COMPONENTS MAY IMPAIR INT RINSIC SAFETY.
ATTENTION
CET APPAREIL NE PEUT ETRE REPAREA PIED D'OEUVRE. NE PASL'OUVRIR.
LES BOULONS DOIVENT ET RE BIEN SERRES DEBRANCHE LE TELEPHONE
AVANT LE REMPLACEMENT DU FUSIBLE. RETOURNER L'APPAREIL A L'USINE
POUR LE DEPANNAGE. LE FAIT DE BRISER LE SCEAUDU FABRICANT A
L'ARRIERE DE L'APPAREIL ANNUELE LA GUARANTIE DU FABRICANT.
Indus trie Canada
Industry Canada
1012 4339 A
TELEPHONE FOR USEI N HAZARDOUSLOCATIONS
MOD. NO.: EA401
FUSE: 0.25A 48VDC - TYPE 2AG, FAST-ACTING
REFER TO USER GUIDE FOR INSTALLATION
RECEPTACLE P ROVIDES
SER. NO.
COMCODE: 700302045
RELAY CONTACTS
LR65547
INTRINSICALLY SAFE OUTPUT
10A 1/3HP 240V AC
10A 1/3HP 120V AC
10A 30V DC
HANDSET WI TH THIS TE LEPHONE
MADE IN C ANADA
USE ONLY MODELEA10H
Associated equipment
AppareillageConnexe
[Exia] CLASSI ZONE 1, GROUPSIIB+H2
ENCLOSURETYPE 4
CLASS I GROUPS B, C, & D
CLASS II GROUPS E, F, & G
AVAYA
13X8
LISTED

Avaya Inc.
Installation and Operation
Model EA401
Page 2
Table of Contents
Package Contents.............................................................................................2
Overview...........................................................................................................2
Features............................................................................................................2
Warnings...........................................................................................................2
General Requirements......................................................................................2
Installing the EA401..........................................................................................2
Wiring For Tip & Ring........................................................................................2
Fuse Replacement............................................................................................2
Replacement Of EA10H Telephone Handset Assembly...................................2
Operating Instructions.......................................................................................2
Engineering Specifications................................................................................2
Warranty............................................................................................................2
Disclaimer .........................................................................................................2
Warning.............................................................................................................2
Service Telephone Number ..............................................................................2
Avaya Product Return.......................................................................................2
APPENDIX A - Hazardous Location Classification...........................................2
APPENDIX B - Applications..............................................................................2
APPENDIX C - EA401 Models and Options .....................................................2
Table of Figures
Figure 1 - Features............................................................................................2
Figure 2 - Dimensions.......................................................................................2
Figure 3 - Typical Installation............................................................................2
Figure 4 - Lower Junction Box Wiring...............................................................2
Figure 5 - Fuse Replacement............................................................................2
Figure 6 - Handset Replacement......................................................................2
Figure 7 - I.D. and Compliance.........................................................................2
Package Contents
(1) EA401 Telephone
(1) Installation & Operation Manual

Avaya Inc.
Installation and Operation
Model EA401
Page 3
Overview
Model EA401 Explosive Atmosphere Telephone
This Explosive Atmosphere telephone provides safe and reliable communication in hazardous
locations, up to and including Class I Division 1. Only standard wiring and fittings are required to
connect the telephone to the system; no barrier is necessary. Since the heavy duty cast aluminum
enclosure is basically soundproof, an external device to signal incoming calls is required.
Features
Enclosure
•cast copper free aluminum with powder coat finish
Internal Sealed Cavities
•completely seal the unit
Keypad
•standard configuration with an additional row of buttons for Last
Number Redial, Link/Flash to access PABX features and Line Release
to duplicate hanging up the handset
•one inch diameter buttons for gloves-on operation
Circuitry Coating
•circuit boards have a UV cured epoxy coating which provides protection
from corrosive agents such as H2S, SO2, and NH3, and environments
with high humidity
Magnetic Reed Hook Switch
•no moving parts, activates when the handset is removed from or placed
in the telephone cradle
Tone (DTMF) Operation
•selectable in the field; factory set to operate to tone (DTMF) exchanges
Intrinsically Safe Handset Operation
•the output from the telephone to the handset passes through an
intrinsically safe barrier ensuring a high degree of safety
Field Replaceable Handset
•the 10’ handset cord is designed for industrial applications and is
attached to the telephone by a connector for ease of replacement
Field Replaceable Fuse
•a fitting in the bottom of the enclosure provides access to the fuse
Hearing-Aid Compatibility
•the handset is compatible with inductively coupled hearing-aid devices

Avaya Inc.
Installation and Operation
Model EA401
Page 4
Figure 1 - Features
Figure 2 - Dimensions
WARNING
FIELD REPAIR NOT POSSIB LE. FOR SERVICE RETURN TO FACTORY. T OPREVENT
IGNITION OF HAZARDOUS ATM OSPHERE, DISCONNECT FROM THE SUPPLY CIRCUIT
BEFORE OPENING OR REPLACING FUS E.K EEP TIGHTLY CLOSED WHEN CIRCUITS
ARE ALIVE. ALL CONDUIT RUNS MUS T BE SEALED WITHIN 18 INCHES (450 mm )OF
THIS ENCLOSURE. BREAK ING OF REAR BOLT SEALS VOIDS MANUFAC TURER'S
WARRANTY. SUBSTITUT IONOF COMP ONENTS MAY IMPAIR INTRINSIC SAFETY.
ATTENTION
CET APPAREIL NE PEUT ET RER EPARE A PIED D'OEUVRE. NE PAS L'OUVRIR.
LES BOULONS DOIVENT ETRE BI EN SERRES DEBRANCHE LE TELEPHONE
AVANT LE REMPLACEMENT DU F USIBLE. RETOURNER L'APPAREI L A L'USINE
POUR LE DEPANNAGE. LE FAIT DE B RISER LE SCEAU DU FABRICANT A
L'ARRIERE DE L'APPAREI L ANNUELE LA GUARANTIE DU FABRI CANT.
HANDSET CORD
CONNECTOR
MAGNETIC REED
HANDSET CORD
(PBX TRANSFER)
LINK
HOOK SWITCH
WARNING LABEL
MOUNTING LUG
ENTRY POINT
TIP/RING/GROUND WIRES
1012 4339 A
Industry Canada
Industr ie Canada
FUSE
INTRINSICALLY SAFE
PRODUCTION IDENTIFICATION
REDIAL
RELEASE
KEYPAD
RELAY CONT ACTS
COMCODE: 700302 045
USE ONLY MO DEL EA10H
MADEIN CANADA
REFERTO USER GUIDE FOR INSTALLATION
HANDSETWITHTHIS TELEPHONE
FUSE: 0.2 5A 48VDC- TYPE2AG, F AST-ACTING
SER. NO.
LR65547
MOD. NO.: EA401
10A 30VDC
10A 1/3HP 120VAC
10A 1/3HP 240VAC 13X8
AVAYA
TELEPHONEFOR USE IN HAZARDOUSLOCATIONS
RECEPTACLEPR OVIDES
INTRINSICALLYSA FE OUTPUT
CLASSII GROUPS E, F, &G
CLASSI GROUPSB, C, & D
ENCLOSURETYPE 4
CLASSI ZONE1, GROUPS IIB+H2
AppareillageConnexe
Associatedequipment
[Exia]
LISTED HANDSET
LABEL
Ø0.4" [Ø10mm]
2 PLCS.
13.5" [342mm]
WARNING
FIEL D REPAI R NOT POSSI BLE. FO R SERVI CE RETURN TO FACTORY. TOPRE VENT
IGNI TION OF HAZA RDOU S AT MOS PHER E, D ISC ONNEC T FROM THE SUP PLY CIRCUIT
BEFORE OPENING OR REPLACINGFUS E. KEEP T IGHTLYCLOSEDWHENCIRCUITS
ARE ALIVE. ALL CONDUIT RUNS MUST BE SEALED WITHIN18INCHES(450 mm)OF
THIS ENCLOSU RE. BREAKING OFREAR BOLT SEALS VOIDSMANUFACTURER'S
WARRANTY. SUBSTITUTION OF CO MPONENTS MAYIMPAIRINTRINSICSAFETY.
ATTENTION
CET APPAREIL NE PEUT ET RE REPARE A PIED D'OEUVRE.NEPASL'OUVRIR.
LES BOULONS DOIVENT E TRE BIEN SERRES DEBRANCHELETELEPHONE
AVANT LE REMPLACEMEN T DU FUSIBLE. RETOURNER L'APPAREILA L'USINE
POURL E DEPANNAGE. LE FAIT DE BRISER LESCEAUDU FABRICANT A
L'ARRIERE DE L'APPAREI L ANNUELE LA GUARANTIEDUFABRICANT.
Industry Canada
IndustrieCanada
1012 4339 A
10.1" [257mm]
8.5" [216mm]
AVAYA
LR65547
AppareillageConnexe
Associatedequipment
CAT. NO .: 401
10A 30V DC
HANDSETWITH THIS TELEPHONE
USEONLY MODEL301SC OR301SCPB
INTRINSICALLYSAFEOUTPUT
CLASSI ZONE1,GROUPS IIB+H2
FUSE: 0.25A 48VDC- TYPE2AG,FAST-ACTING
REFERTOUSERGUIDEFOR INSTALLATION
10A 1/3HP 120VAC
10A 1/3HP 240VAC
TELEP HONE FOR USE IN HAZA RDOUS LOCATIONS
RELAYCONTACTS
MADE IN C ANADA
CLASSII GROUPSE, F , & G
RECEPTACLEPROVIDES
ENCLOSURE TY PE 4
CLASSI GROUPSB, C, & D
SER.NO.
[Exia]
LISTED
13X8
11.4" [290mm]
12.8" [326mm]
WARNING
FIELD RE PAIR NOT POSSIBLE.FOR SERVICERETURN TOFACTORY. TOPREVENT
IGNITION OF HA ZARDOUS ATMOSPHERE, DI SCONNECTFROMTHE SUPPLYCIRCUIT
BEFORE OPENING ORREPLACING F USE. KEEP TIGHTLY CLOSEDWHENCIRCUITS
ARE ALIVE. ALL CONDUIT RUNS MUST BE SEALED WITHIN18INCHES(450 mm)OF
THIS ENCLOSURE. BREA KING OF REAR BOLT S EALSVOIDSMANUFACTURER'S
WARRANTY. S UBSTITUT ION O F COM PONENTS MAYIMPAIRINTRINSICSAFETY.
ATTENTION
CET APPAREIL NE PEUT ETRE REPARE A PIED D'OEUVRE.NE PASL'OUVRIR.
LES BO ULONS DO IVENT E TRE BIE N SERRES DEBRA NCHEL ETELEPHON E
AVANT LE REMPLACEMENT DU FUSIBLE. RETOURNER L'APPAREILA L'USINE
POUR LE DEPANNAGE. LE FAIT DE BRISER LESCEAUDU FABRICANT A
L'ARRIERE DE L'APPAREIL ANNUELE LA GUARANTIEDUFABRICANT.
4.6" [117mm]
Indust ry Canada
IndustrieCanada
1012 4339 A
Ø0.3" [Ø9mm]
2 PLCS.
4.9" [124mm]4.4" [111mm]
AVAYA
10A 1/3HP 240V AC
10A 30V DC
10A 1/3HP 120V AC
HANDSET WITH THIS TEL EPHONE
USEONLY MODEL301SC OR301SCPB
INTRINSICALLYSAFEOUTPUT
CLASSI ZONE1, GROUPSIIB+H2
CLASS I I GROUPSE , F, & G
RECEPTACLEPROVIDES
ENCLOSURETYPE4
CLASSI GROUPSB, C, & D
TELEPHONE FORU SE IN HAZARDOUS LOCATIONS
FUSE: 0.25A 48VDC- T YPE 2AG, FAST-ACTING
REFERTOUSERGUIDEFORINSTALLATION
MADEIN CANADA
AppareillageConnexe
Associatedequipment
SER.NO.
LR65547
[Exia]
RELAYCONTACTS
CAT.NO.: 401
13X8
LISTED

Avaya Inc.
Installation and Operation
Model EA401
Page 5
Warnings
•In no case should this telephone apparatus or wiring be installed in a location where
acetylene may be present in the atmosphere.
•Two back cover retaining bolts on the model EA401 are factory sealed. Damage to the
seals voids the warranty and safety approvals, and may compromise unit safety.
•It is the responsibility of the installer to advise a supervisor if any telephone equipment or
wiring in a hazardous location may not comply with regulations and standards applicable to
that location.
•Avoid creating a spark by striking tools or metal objects together, against concrete, stone, or
any similar substance.
•Test equipment capable of producing an electric spark must not be used in an explosive
atmosphere.
•All apparatus should be completely assembled and properly sealed before reconnecting
power.
General Requirements
•A EA401 telephone should only be installed with proper authorization. It is necessary for
the customer and the telephone company to have a definite agreement regarding the
location of the telephone unit, auxiliary apparatus, and protector (i.e. lightning arrestor at the
demarcation block).
NOTE:
•To maintain maximum protection, broken or worn parts must be replaced immediately. Any
abnormal conditions should be immediately corrected. Periodic inspections are
recommended.
•Unless otherwise specified, the customer must provide and install explosion-proof conduit
and fittings approved by the Canadian Standards Association (CSA) or listed by
Underwriters Laboratories (UL). The customer is also responsible for having the system
inspected and approved by the appropriate electrical inspector in accordance with local
legal requirements and National Electrical Code Standards.
•EA401 telephone sets and associated external bells and control relays are designed to
provide security against ignition of the surrounding atmosphere. All parts of the apparatus
which might produce an electrical spark are completely enclosed. All passages to the
outside are made such that any spark or flame will be cooled to a temperature below the
ignition threshold before reaching the outside atmosphere.
•If the handset or cord is damaged, it must be replaced with part EA10H handset assembly.
Handsets and cords are not covered under warranty other than to be free of defects at time
of installation.
•If the telephone is found to be defective or in need of repair, it must be returned to the
manufacturer. No field repair is possible other than replacement of the handset and fuse.
•Telephones in good condition may be moved from one location to another.

Avaya Inc.
Installation and Operation
Model EA401
Page 6
Installing the EA401
•Declassify the hazardous location before proceeding with any
installation or electrical wiring. Caution: Installation or
electrical wiring in a
hazardous location
could result in serious
injury to personnel or
damage to property.
•Follow all appropriate electrical codes and use only approved electrical
fittings for the installation.
•Choose a wall location that is free of obstructions and permits space for ½”
NPT conduit runs See: Figure 3 - Typical
Installation.
•Ensure mounting can support 16.5lbs. (7.5kg), plus the weight of any
peripheral equipment.
•Ensure that none of the electrical connection circuits are live.
•Use the template provided to locate and drill holes for mounting screws.
Use ¼” bolts or screws to mount the unit. See: Figure 2 -
Dimensions.
•Secure the unit to the wall: Tip: Use ¼” bolts or
screws to secure the unit
to the wall.
•Attach lower conduit nipples to the telephone and ensure a minimum five
thread engagement.
•Mount an approved explosion proof junction box within 45.7 cm (18") of the
telephone’s lower sealing cavity and bring telephone wires into this box. Tip: Fittings compatible
with 1/2 inch NPT
nipples, conduit, or 1/2
inch explosion-proof
flexible couplings not
exceeding 45.7 mm (18
inches) may be fitted
directly.

Avaya Inc.
Installation and Operation
Model EA401
Page 7
Figure 3 - Typical Installation
18.0" [457mm] MAX.
TIP/RING/GND
FROM CO OR PBX
UNION FITTING
EXPLOSION PROOF
FITTING
SEALING
ATMOSPHERE TELEPHONE
EA401: EXPLOSIVE
HEIGHT: 1.4m (4.6')
SUGGESTED MOUNTING
WARNING
FIELD REPAIR NOT POSSIBLE. FOR SERVICE RETURN TO FACTORY.TO PREVENT
IGNITION OF H AZARDOUS ATMOSPHERE, DISCO NNECT FROM THE SUPPLY CIRCUIT
BEFORE OPENING OR REPLACINGFUSE. KEEPTIGHTLYCLOSEDWHEN CIRCUITS
ARE ALIVE. ALL CONDUIT RUNS MUST BE SEALED WITHIN 18 INCHES (450 mm) OF
THIS ENCLOSURE. BREAKING OF REAR BOLT SEALS VOIDS MANUFACTURER'S
WARRANTY. SUBSTITUTION OF COMPONENTS MAYIMPAIR INTRINSICSAFETY.
ATTENTION
CET APPAREIL NE PEUT ETRE REPARE A PIED D'OEUVRE. NE PAS L'OUVRIR.
LES BOULONS DOIVENT ETRE BIEN SERRES DEBRANCHE LE TELEPHONE
AVANT LE REMPLACEMENT DU FUSIBLE. RETOURNER L'APPAREIL A L'USINE
POUR LE DEPANNAGE. LE FAIT DE BRISER LE SCEAU DU FABRICANT A
L'ARRIERE DE L' APPAREIL ANNUELE LA GUAR ANTIE DU FABRICANT.
Indust rie Canada
Indust ry Canada
1012 4339 A
TELEPHONE FOR USE IN HAZARDOUS LOCATIONS
MOD. NO.:EA401
FUSE : 0.25 A 48V DC - TYPE 2AG,FAST-AC TING
SER.NO.
REFER TO US ER GUIDE FOR INSTA LLATION
MADE INC ANADA
COMCODE: 700302045
RELAYCONTACTS
LR65547
[Exia]
Appareillage Connexe
Associated equipment
AVAYA
CLASS II GROUPSE, F, & G
CLASS I GROUPS B, C, &D
ENCLOSURE TYPE4
CLASS I ZONE1, GROUPS IIB+H2
RECEPTACLEPROVIDES
10A 30VDC
10A 1/ 3HP 120VA C
10A 1/ 3HP 240VA C
USE ONLY MODEL EA10H
HAND SET WITH TH IS TELEPHONE
INTRINSICALLYSAFE OUTPUT
13X8
LISTED

Avaya Inc.
Installation and Operation
Model EA401
Page 8
Wiring For Tip & Ring
•After mounting the telephone follow these steps.
•Run tip, ring and ground wires from the local exchange into the lower junction
box. The tip and ring wires must not be connected to the local exchange until
installation is completed. A sealing fitting must be installed within 45.7 cm
(18") on the exchange side of the lower junction box.
See: Figure 4 - Lower
Junction Box Wiring
•Attach the tip and ring wires to the orange and blue wires from telephone
using twist on wire connectors. Attach #10 ring lugs to the end of the three
green wires and attach these wires to the ground screw in the junction box.
•For tone (DTMF) dialing operation of the telephone, connect the two brown
wires together and protect the connection with a twist-on wire connector. For
pulse dialing operation of the telephone, separate the two brown wires and
insulate the ends to prevent accidental contact with the interior of the junction
box.
•Check the wiring and close the junction box.
Figure 4 - Lower Junction Box Wiring
FROM EXCHANGE
GROUND
TONE/PULSE: CONNECT
WIRES AND KEEP WIRES
ISOLATED
RING
TIP
(BROWN)
TONE/PULSE SWITCH
GROUND (GREEN)
NOT POLARITY SENSITIVE
(BLUE & ORANGE)
TIP & RING
TO EA401

Avaya Inc.
Installation and Operation
Model EA401
Page 9
Fuse Replacement
•Disconnect the telephone from tip and ring power supplied by the PABX or
central office before attempting to replace the fuse. See: Figure 5 - Fuse
Replacement
•Remove the 1/2” NPT close up plug (item A) with a 1/4” Allen key.
•Remove fuse holder cap (item B) with a flat blade screwdriver. Rotate fuse
holder cap 1/4 turn counterclockwise (to the left) to remove.
•Remove fuse (item C) from the cap and insert replacement fuse.
WARNING!
•Replace only with a 0.25 amp 2AG fuse. Failure to do so will void safety
approval and warranties and may create an explosion hazard.
•With fuse mounted in the cap, re-install in the fuse holder with a flat blade
screwdriver and rotate 1/4 turn clockwise (to the right) to lock in position.
•Screw the 1/2” NPT close-up plug into housing with a minimum of five full
threads of engagement.
ATTENTION!
•CSA & UL standards require five full threads of engagement for the close-up
plug.
NOTES
•A field replaceable fuse is available on EA401 models manufactured after
Jan. 1, 1997.
•If, on reconnecting power, the fuse fails, check the telephone system wiring.
The fuse protects the tip and ring line from the telephone system. It is usually
powered at 48 volts DC and should not be connected to 120 volts AC.
Figure 5 - Fuse Replacement
A
B
C
1012 4339 A
Industry Canada
Industrie C anada
WARNING
FIELD REPAIR NO T POSSIBLE. FOR SERVI CE RETURN TO FACTORY. TO PRE VENT
IGNITION OF HAZARDOUS ATMOSPHERE,DISCONNECT FROM THE SUPPLY CIRCUIT
BEFOREOPENING OR REPLACING FUSE. KEEPTIGHTLY CLOSEDWHEN CIRCUITS
ARE ALIVE. ALL CO NDUIT RUNS MUST BE SEALED WITHIN 18 INC HES (450 mm) OF
THIS ENCLOSU RE. BREAKING OF REAR BOLT SEALS VOID S MANUFACTURER'S
WARRANTY. SUBST ITUTION OF COMPONENT S MAY IMPAIR INTRINSIC SAFETY.
ATTENTION
CET APPAREIL NE PEU TE TRE REPARE A PIED D'OEUVRE. NE PAS L'OU VRIR.
LES BOULONS DOI VENT ETRE BIEN SERRES DEBRANCHE LE T ELEPHONE
AVANT LE REMPLACEM ENT DU FUSIBLE. RETOURNER L'APP AREIL A L'USINE
POUR LE DEPANNA GE. LE FAIT DE BRISER LE SCEAU DU FABRICANT A
L'ARRIERE DE L'AP PAREIL ANNUELE LA GUARANTIE DU FABRI CANT.

Avaya Inc.
Installation and Operation
Model EA401
Page 10
Replacement Of EA10H Telephone Handset Assembly
Note: The handset cord is a 3.0 m (10 ft) long coiled cable designed specifically
for use with the EA401 telephone. If damaged, the assembly may be replaced in
the field. Only an EA10H handset assembly may be connected to the EA401
Explosive Atmosphere telephone.
See: Figure 6 - Handset
Replacement
•Completely unscrew the upper knurled collar.
•Pull the old plug straight down.
•Inspect the inside of the socket and the threads for dirt or damage; clean as
necessary.
•For safe installation, the new handset MUST be placed firmly in the cradle
PRIOR to engaging the plug in socket.
•Bring the new plug up to the socket and rotate the plug until the slot in the
shell lines up with the key in the socket. Insert plug into socket.
•Screw the upper knurled collar onto the socket. Hand tighten only, Do Not
use a wrench.
•Call back and forth to another set to check functionality.
•Hang up firmly between each call.
•NOTE: If the handset is being replaced because of an apparent telephone
malfunction, and the replacement fails to restore normal operations, contact
the manufacturer to arrange return of the unit for repair.
Figure 6 - Handset Replacement
HANDSET PLUG
KNURLED COLLAR
ATMOSPHERE TELEPHONE
HANDSET JACK
EA401: EXPLOSIVE