MTL 9468-ET User manual

Instruction Manual
INM9468
9468-ET
10/100Mb Ethernet Isolator

ii INM9468-2
May 2010
CONTENTS
1. FEATURES ...........................................................1
2 DESCRIPTION ........................................................2
3. INSTALLATION .......................................................2
3.1 Protection ...............................................................2
3.2 Mechanical mounting ......................................................2
3.4 Label marking ...........................................................4
4 ENVIRONMENTAL .....................................................4
5 WASTE REMOVAL INFORMATION .........................................4
6 ACCESSORIES ........................................................4
7 APPROVALS .........................................................5
8 FM CERTIFICATION INFORMATION ........................................5
9 ATEX & IECEx CERTIFICATION INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
© Measurement Technology Limited 2010

1
INM9468-2
May 2010
1. FEATURES
♦Intrinsically Safe ATEX / IECEx certified
♦FM / FMC approved
♦Ga Ex ia IIC T4 GD (surface), Ma Ex ia I M1 (mining)
♦Zone 2 / Safe Area mounting with Hazardous Area connections into Zone 1 and 0.
♦Interfaces Zone 2 and non-approved devices to the Intrinsically Safe 9400 series.
♦Total galvanic isolation (Um=253Vac) from Safe to Hazardous RJ45 ports
♦Single Safe Area supply: 20…30V dc @ 220mA
♦Extended temperature range (–20°C…+70°C)
♦PoEx™ - “Power over Ethernet” power sourcing equipment - distributes device supplies via the RJ45 ports*
♦10/100Mb Ethernet twisted pair (Cat5e) RJ45 Connections (100m max)
♦Status LED’s for:
‘Power On’
Safe Area UTP ‘Link 10Mb’ or ‘Link 100Mb’ Established
Safe Area UTP ‘Tx/Rx Activity’
Hazardous Area UTP ‘Link 10Mb’ or ‘Link 100Mb’ Established
Hazardous Area UTP ‘Tx/Rx Activity’
♦Transparent operation – 10/100Mbps, Full/Half Duplex with Auto-Negotiation
♦Supports IEEE 802.3: 10Base-T, 100Base-TX
♦DIN-rail mounting module
*Note – PoEx is a simple adaptation of the IEEE 802.3af Power over Ethernet (PoE) standard to
bring the benefits to the 9400 Range of Hazardous Area devices. This allows two spare pairs in the
existing Cat5e cable to distribute the power supply from a 9466-ETEthernet Switch (Power Sourcing
Equipment – PSE) to each of the devices connected to its five ports (PD – Powered Device). This
adaptation is necessary due to restrictions for Hazardous Area use. It is not implied that the device
conforms to the 802.3af (PoE) standard.
INM9468-2
May 2010
9468-ET - Ethernet Isolator

2INM9468-2
May 2010
2 DESCRIPTION
The 9468-ET 10/100Mbps Ethernet Isolator allows the interconnection of a Zone 2 or un-certified
Safe Area device to the Intrinsically Safe 9400 series of Ethernet networking products, operating
in the Hazardous Area.
The isolator provides a compact alternative solution to fibre optic cable and media converters and
for when it is desirable to use Cat5e cables in preference to fibre.
The module requires a single supply from the Safe Area of 20…30Vdc at approx 220mA.
3. INSTALLATION
WARNING: This equipment must be installed, operated and maintained only be trained competent
personnel and in accordance with all appropriate international, national and local standard codes
of practice and site regulation for intrinsically safe apparatus and in accordance with the instructions
contained here. See also Sections 7, 8 & 9 for approvals and important conditions of safe use.
3.1 Protection
The module requires mounting within an enclosure providing a degree of protection of at least IP6x,
in accordance with EN60529 and in a manner that does not impair the existing creepage and
clearance distances. The enclosure must also comply with the requirements of Clauses 7 and 8 of
EN50014 and be sealed to prevent the ingress of dust.
3.2 Mechanical mounting
3.2.1 DIN rail mounting
The module will ‘snap-fit’ onto standard DIN rail (TS35) to EN 50022. Height off rail - including any
connectors but excluding cables = 106mm.
Tilt the module to engage the top DIN rail clips then rotate down and press to the DIN rail until the
lower spring clip is properly engaged.
3.2.2 Flat panel mounting
The module has two fixing holes to enable it to be mounted with two M3.5 screws. Use the following
dimension diagram to establish the hole positions. Depth - including connectors but excluding
cables = 111mm.
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3
INM9468-2
May 2010
3.3. Electrical connections
3.3.1 Screw Terminals
Terminal No. Function
1 +20...30V dc in
2 +20...30V dc in
3 0V
4 0V
5–13 No connection
14 Supply in +12V - PoEx †
15 Supply in 0V - PoEx †
Note: Terminal pairs 1+2 and 3+4 are linked internally.
† To use PoEx, connect IS supply to terminals 14 & 15 (marked blue).
WARNING: The supply for PoEx must be derived from a suitably certified, intrinsically safe
supply.
3.3.2 Front Panel Connectors
SAFE AREA - 10/100 BASE-T - Ethernet RJ45
(TX/RX crossed MDI-X)
Pin No. Function
1 RX +
2 RX –
3 TX +
4
5
6 TX –
7
8
HAZARDOUS AREA - 10/100 BASE-T - Ethernet RJ45
(TX/RX crossed MDI-X) Connector marked blue
Pin No. Function
1 RX +
2 RX –
3 TX +
4 Supply 12V - PoEx †
5 Supply 12V - PoEx †
6 TX –
7 Supply 0V - PoEx †
8 Supply 0V - PoEx †
† When supply has been connected to screw terminals 14 & 15.
When connecting the Cat5e cable to another device a straight connected RJ45 cable is used, a
crossover cable is not required as the RJ45 connector performs the X-over.
A Crossover cable is required when interconnecting two 9468 modules.
It is recommended that Cat5e cables for Hazardous Area Zone 1 use are ‘Blue’ in colour and are
of good quality (see accessories section), the Safe Area cables being a colour other than blue to
aid identification.
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4INM9468-2
May 2010
3.4 Label marking
After installation, the product label should be permanently marked to indicate the type of area (safe
or Zone 2) in which it has been mounted. Two tick (check) boxes are provided on the product label.
Place a single tick (check), with an indelible marker, in the appropriate box to indicate whether the
box is being mounted in a safe area or a Zone 2 hazardous area.
Note: When a 9468-ET isolator has been used in (and marked for) a safe area, it may NOT be
used in future in a Zone 2 hazardous area.
4 ENVIRONMENTAL
Operating Temperature –20°C…+70°C
Storage Temperature –20°C…+70°C
Humidity 5…95% RH, non condensing
5 WASTE REMOVAL INFORMATION
The electronic equipment within must not be treated as general waste. By ensuring
that this product is disposed of correctly you will be helping to prevent potentially
negative consequences for the environment and human health, which could otherwise
be caused by incorrect waste handling of this product.
For more detailed information about the take-back and recycling contact MTL.
6 ACCESSORIES
For interconnecting the 9460-ET range of products, we offer approved RJ45 Cat5e UTP cables in
various standard lengths (0.5…100m)
Ordering details
Copper Twisted Pair UTP Patch Cable (Blue) pre-terminated RJ45-RJ45 connectors
Part No. CSL9405-xx ( -xx is used to signify the length of the cable.)
Tick (check) boxes

5
INM9468-2
May 2010
7 APPROVALS
The operating parameters must not exceed those as detailed on the certificate.
♦2004/108/EC EMC Directive
♦2006/95/EC Low Voltage Directive
Region Europe (ATEX) International IECEx USA Canada
Authority SIRA SIRA FM CSA
Standard EN 60079-0:2006,
EN 60079-11:2007,
IEC 60079-26:2006,
IEC 61241-0:2004,
IEC 61241-11:2005
IEC 60079-0:2004,
IEC 60079-11:2006,
IEC 60079-26:2006,
IEC 61241-0:2004,
IEC 61241-11:2005
3600
3610
3810
C22.2 No. 61010.1:2004
C22.2 No. 157:1992
CAN/CSA-E60079-0:2007
CAN/CSA-E60079-11:2002
Approved for E II (1) GD
E I (M1)
(Ga) [Ex ia] IIC
[Ex iaD]
(Ma) [Ex ia] I
(Ta = –40˚C to +70˚C)*
(Ga) [Ex ia] IIC
[Ex ia D]
(Ma) [Ex ia] I
(Ta = –40°C to +70°C)*
AIS/I/1/ABCD/T4
Ta=70°C
[I]/[0]/[AEx ia] IIC T4
Ta=70°C
AIS/I/1/ABCD/T4 Ta=70°C
[I]/[0]/[AEx ia] IIC T4
Ta=70°C
Cert. no. Sira 07ATEX2065 IECEx SIR 07.0043 3034995 3034995C
* (see specification for operating temperature range)
Region Europe (ATEX) International IECEx USA Canada
Authority SIRA SIRA FM FMC
Standard EN 60079-0:2006,
IEC 60079-0:2007†,
EN 60079-11:2007,
EN 60079-15:2005,
IEC 60079-26:2006
IEC 60079-0:2004,
IEC 60079-11:2006,
IEC 60079-15:2005-03
Approved for E II 3 G
Ex ic (ia) IIC T4 Gc
(Ta = –40˚C to +70˚C)*
Ex nLc nAc (ia) IIC T4
(Ta = –40˚C to +70˚C)*
Ex ic [ia] IIC T4 Gc
(Ta = –40°C to +70°C)*
Ex nLc nAc [ia] IIC
(Ta = –40°C to +70°C)*
Cert. no. Sira 08ATEX4130X IECEx SIR 08.0032X
† (for guidance on the Gc, nLc & nAc marking) * (see specification for operating temperature range)
8 FM CERTIFICATION INFORMATION
Special Condition of Use - Factory Mutual (USA & Canada)
1. The Model 9468-ET shall be installed in compliance with the enclosure, mounting, spacing and
segregation requirements of the ultimate application.
9 ATEX & IECEx CERTIFICATION INFORMATION
The following information is in accordance with the Essential Health and Safety Requirements
(Annex II) of the EU Directive 94/9/EC [the ATEX Directive - safety of apparatus] and is provided
for those locations where the ATEX Directive is applicable.
General
a. This equipment must only be installed, operated and maintained by competent personnel. Such
personnel shall have undergone training, which included instruction on the various types of
protection and installation practices, the relevant rules and regulations, and on the general
principles of area classification. Appropriate refresher training shall be given on a regular
basis. [See clause 4.2 of EN 60079-17].
b. This equipment has been designed to provide protection against all the relevant additional
hazards referred to in Annex II of the directive, such as those in clause 1.2.7.
c. This equipment has been designed to meet the requirements of intrinsically safe electrical
apparatus in accordance with EN 60079-0, EN 60079-11 and EN 60079-26.

6INM9468-2
May 2010
Installation
a. reference to the IEC code of practice IEC 60079-14. In addition, particular industries or end
users may have specific requirements relating to the safety of their installations and these
requirements should also be met. For the majority of installations the Directive 1999/92/EC
[the ATEX Directive - safety of installations] is also applicable.
b. Unless already protected by design, this equipment must be protected by a suitable enclosure
against:
i) mechanical and thermal stresses in excess of those noted in the certification documentation
and the product specification.
ii) aggressive substances, excessive dust, moisture and other contaminants.
c. This apparatus is intrinsically safe electrical apparatus and is normally mounted in a hazardous
area. When mounted in a Zone1 location the apparatus must be provided with an enclosure,
which offers an additional degree of protection appropriate to the area classification.
Special conditions for safe use
a. The non-metallic enclosure of the ‘ic’ certified 9468-ET 10/100 Ethernet Isolator module does
not satisfy Table 4 of EN 60079-0:2006 for equipment protection level Gc and could be
a potential electrostatic charging hazard, this must be taken into consideration during the
installation of the modules.
b. The ‘nLc’ ‘nAc’ certified 9468-ET 10/100 Ethernet Isolator module shall be installed in an ATEX
Component Approved Ex ‘e’ enclosure that provides a level of protection appropriate for its
intended environment of use. The minimum level of ingress protection provided shall be IP54.
Inspection and maintenance
a. Inspection and maintenance should be carried out in accordance with European, national
and local regulations which may refer to the IEC standard IEC 60079-17. In addition specific
industries or end users may have specific requirements which should also be met.
b. Access to the internal circuitry must not be made during operation.
Repair
This product cannot be repaired by the user and must be replaced with an equivalent certified
product.
Marking
Each device is marked in accordance with the Directive and CE marked with the Notified Body
Identification Number.
This information applies to products manufactured during or after the year 2010.

latigid
DRAWN : IAC DATE: 05/12/2009
CONTROLLED SYSTEMS LTD.
SWADLINCOTE, DERBYSHIRE. ENGLAND
9400 Series Ethernet
System Drawing of
Typical Installation
SIZE DWG NO REV
A3 9400 System 4
SCALE SHEET 1OF2
CSL
SCALE
TITLE
H
G
F
E
D C
B A
87654321
H
G
F
E
D C
B A
87654321
20/08/2009
DATE
28/03/2007
REV DESCRIPTION
Updated for Issue2 Changes required for FM3
05/12/2009Added sheet 24
Fibre-Optic
Cable
Fibre-Optic
Cable
Cat5e/Cat6
I.S. Cable
Cat5e/Cat6
I.S. Cable
9465
Media
Converter
9466 5x Port
Switch
9461
Serial
Gateway
Unspecified Safe Area
Equipment
Unspecified Safe Area
Equipment
9468
Ethernet
Isolator
9468
Ethernet
Isolator
9461
Serial
Gateway
9466 5x Port
Switch
9465
Media
Converter
9465
Media
Converter
9466 5x Port
Switch
Certified or
Safe Area
Media
Converter
ZONE 1
Class I
Div 1
SAFE AREA
ZONE 0
Class I
Div 1
Unspecified Zone 0 Div 1
Equipment Entity
Parameters Matching
9461 - RS232/TTL.
RS485/422 Port
Unspecified Zone 1
Div 1 Equipment
Entity Parameters
Matching 9461 -
RS232/TTL. RS485/
422 Port
Power Supply Connections
12Vdc IS Power Supply (psu) Any suitably certified IS power supply unit for the intended gas/dust group and satisfying the following requirements Uo = 15.4V maximum (12.8V for 9469 module) 9461, 9465, 9466 Modules (app) Ui = 15.4V Ci=Li=0 9469 Modules (app) Ui = 12.8V Ci=Li=0 9468 Modules 24Vdc Supply Input Um = 253Vac Supply Cable Cc (cable) <= Co (psu) - Ci (app) Lc (cable) <= Lo (psu) - Li (app) L/R(cable) <= Lo/Ro (psu)
12VDC
IS Power
Supply
9469 WLAN
AP/Bridge
PoEx Supply for Port 3 Device
Supply for 9466
PoEx for 9461
via Port 3
Supply for 9466
PoEx for 9465
via Port 5
Supply for 9465
(PoEx not used)
Supply for 9466
PoEx Supply for Port 5 Device
Supply for 9469
PoEx Supply for Port 1 Device PoEx Supply for Port 3 Device
No PoEx
No PoEx
PoEx for 9465
via Port 1
No PoEx
No PoEx
PoEx for 9461
via Port 3
NO
POWER
NO
POWER
NO
POWER
NO
POWER
No PoEx
NO
POWER
PoEx Supply for Port 5 Device
PoEx for 9469
via Port 5
9469 WLAN
AP/Bridge
1. For ease of identification -Use BLUE coloured Cat5e/6 cables in Zone 1 and 0 Hazardous Areas, any other colour for Zone 2 or Safe Area
NOTES
2. 9465 Optical Radiation <= 5mW 9469 Radio Frequency Radiation <= 500mW 3. Fibre-Optic and BLUE I.S. Cat5e cables may run in Zone 0, 1, 2 and Safe Area 4. 9400 Series Modules may be mounted in Zones 1, 2 or Safe Area (9468 may only be mounted in Safe Area) 5. 9400 Series Modules must be installed in a suitable manner for the surrounding conditions, this may require an additional protective enclosure in some areas. 6. PoEx (Power over Ethernet for Hazardous Areas) A means of distributing IS power supplies to devices via the Cat5 Ethernet cable as an alternative to a separate power cable. Ensure only one power source is used (PoEx or separate power cable) 7. Refer to User Manual for Connections and Installation Instructions. See Certificate for Safety Description
12VDC
IS Power
Supply
12VDC IS
Power Supplies
24Vdc Um = 253Vac
Um = 253Vac
Um = 253Vac
24Vdc Um = 253Vac

DRAWN : IAC DATE: 05/12/2009
CONTROLLED SYSTEMS LTD.
SWADLINCOTE, DERBYSHIRE. ENGLAND
9400 Series Ethernet
System Drawing of
Typical Installation
SIZE DWG NO REV
A3 9400 System 4
SCALE SHEET 2OF2
CSL
SCALE
TITLE
H
G
F
E
D C
B A
87654321
H
G
F
E
D C
B A
87654321
NOTE: RJ45 ETHERNET PORTS* ARE INTENDED FOR CONNECTION ONLY TO OTHER 9400 SERIES MODULES SHOWN ON THIS DRAWING. *(With the exception of 9468-ET Safe Area port)