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• 5-port 10/100Mbps links

• Zone 1. Division 1 mountable in suitable enclosure

• Broadcast “storm” protection

• Intelligent Routing

• Programmable Management

• ATEX / IECEx certified

• FM / FMC approved

• Wide temp. range –40°C to +70°C

• Half/Full Duplex

• Power source for PoEx™ Power over IS Ethernet

• Status LEDs to show activity

The 9466-ET 10/100Mbps, Layer 2. Ethernet switch allows the

interconnection of MTL 9460-ET range networking modules via its 5

ports. It also enables an Ethernet network to cover a greater distance

using either Cat5e cable or fibre-optic for longer spans. This capability

is due to the low latency ‘store and forward’ mechanism integral to

the switch, which ensures that the stringent timing associated with

Ethernet is maintained.

With the 9466-ET switch each connection is effectively a ‘point-to

point’ network segment unlike the older generation hubs that were

simple ‘dumb’ repeaters. The old hubs needed to impose a limit on

overall network length to ensure proper collision detection; this limit is

overcome by the 9466-ET. Broadcast “storm” protection is also provided

to eliminate network overload due to excessive ‘broadcast’ & ‘multicast’

packets.

• Zone 2 mountable for connections to Zone 0 and 1

• Galvanically isolated RJ45 ports

• Transparent operation

• Compact alternative solution to fibre optics and media converters

• ATEX / IECEx certified

• FM / FMC approved

• Wide temp. range –40°C to +70°C

• Single 20–30V DC power supply

• Status LEDs to show activity

The 9468-ET 10/100Mbps, Isolating Ethernet Barrier allows the

interconnection of a Zone 2 or uncertified safe area device to the

intrinsically safe 9400-ET range of Ethernet networking products,

operating in the hazardous area.

The isolating barrier 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 9468-ET is designed for Zone 2 hazardous-area mounting

inside a suitable enclosure and has intrinsically safe ATEX and

IECEx approvals, together with IS approval for USA and Canada. FM

Division 2 mounting approval is pending. The ATEX and IECEx

approvals cover both surface industry and mining applications.

10/100Mb Ethernet twisted pair (Cat5e) RJ45 connections (100metres

length max.). These RJ45 ports provide total galvanic isolation

(Um=253Vac) from safe to hazardous areas.

Status LEDs are provided on the front panel to indicate:

• ‘Power On’

• Safe Area UTP ‘Link 10/100Mb’ established

• Safe Area UTP ‘Tx/Rx Activity’

• Haz. Area UTP ‘Link 10/100Mb’ established

• Haz. Area UTP ‘Tx/Rx Activity’

The module operates from a single supply in the Safe Area of

20…30Vdc at approx. 220mA.

Transparent operation – 10/100Mbps, Full/Half Duplex with Auto

Negotiation. Supports IEEE 802.3: 10Base-T and 100Base-TX.

The module is supplied as a DIN-rail mounting device.

The Crouse-Hinds series MTL 9460-ET product range provides cost-effective

Intrinsically Safe (IS) Ethernet equipment that can be installed and maintained 

easily in hazardous areas. The intrinsically safe hazardous area certification

permits the components to be mounted in a Zone 1. or Division 1 hazardous

area with connectivity into Zone 0.

In Process Automation it is also preferable to use a single cable to provide both

power and communications to the end device. The 9460-ET range can deliver

Intrinsically Safe Power over Ethernet (PoEx™) with a single Cat 5e or Cat 6 cable,

allowing live connection and disconnection of the end device in Zone 0 and 1

hazardous areas.

The MTL 9460-ET range includes:

Ethernet Gateway (9461-ET)

Copper to Fibre Optic Media Converter (9465-ET)

Ethernet Switch (9466-ET)

Ethernet Isolator (9468-ET)

• Intrinsically Safe ATEX /UKEX/ IECEx / North America (METC/US) approvals

• 4 Communication Ports – RS232/TTL/485/422 (2 & 4 Wire)

• Serial Modbus Protocol

• Dual Port Switch 10/100/1000Mbps LAN

(daisy-chain capability)

• LAN to Serial

• Modbus/TCP ⇔ Modbus/RTU (or ASCII) Protocol

• Compact dimensions (W: 42 x H: 160 x D: 140 mm)

• Ex ia IIB T4 Ga, [Ex ia Da] IIIC (non-mining),

Ex ia I Ma (M1 mining).

• Ta = -40ºC to +70ºC

• Zone 1 / Zone 21 mounting

(Zone 0 / Zone 20 with a suitable Ex ia Power Supply)

The 9471-ET(G) is an Intrinsically Safe (IS) Ethernet to Serial 4 Port

Communication Module suitable for Zone 1 / Zone 21 mounting,

(Zone 0 / Zone 20 with a suitable Ex ia Power Supply).

The Module allows existing Intrinsically Safe equipment with an RS485/

RS422 or RS232/TTL port to become Ethernet Enabled via a Cat5e/6

cable connection into an IS Ethernet Network (LAN). The unit has 4

serial ports, each one supporting either RS485/RS422 or RS232/TTL

depending upon the configuration required. There are 2x RJ45 (LAN)

ports that support 10/100/1000 IS Ethernet connections – these allow

‘daisy-chaining’ of units together.

Power (12V DC) is supplied to the module either locally or using Power

over Ethernet (PoEx) from either LAN port – This requires the PoEx

output to be wired to the Supply Input terminals by the user.

Note: PoEx not available on Gigabit versions

The compact and cost effective design makes it the ideal choice for

many applications:

Petrochem – Process Monitoring, Legacy Systems…

Mining – 

Underground Communication Links, Machine Monitoring, Legacy

Systems….

Electrical connections are via cage-clamp and/or screw type plug/

socket terminals along with RJ45 type connectors for the Ethernet

LAN ports.

The 9475-ET(G) is an Intrinsically Safe (IS) Dual Port Media Con

verter Module suitable for Zone 1 / Zone 21 mounting, (Zone 0 /

Zone 20 with a suitable Ex ia Power Supply).

The use of 1310nm optics (instead of 850nm) allows a longer fibre-op

tic link length, typically 10Km at (Gigabit) 1000Mbps using Single Mode

fibre or 500m when using multi-mode fibre

There are 2x RJ45 (LAN) ports that support 10/100/1000 IS Ethernet

connections – these can allow ‘daisy-chaining’ of units together.

Power (12V DC) is supplied to the module either locally or using

Power over Ethernet (PoEx) from either LAN port – This requires

the PoEx output to be wired to the Supply Input terminals by the

user (9475 used as a Powered Device).

Alternatively PoEx can provide power to another device

connected to the LAN port (Power Source) by connecting power

into the PoEx terminals to feed the LAN device (9475 used as a

Power Source)

• Intrinsically Safe ATEX / UKEX / IECEx Certification /

North America (METC/US ) approvals

• 6 Port Switch 10/100/1000Mbps LAN

• 6x Gigabit Ports or Mixed Gigabit

and 10/100 PoEx Versions

• CPU Management Feature

• Compact dimensions (W: 42 x H: 160 x D: 140 mm)

• Ex ia IIB T4 Ga, [Ex ia Da] IIIC (non-mining),

Ex ia I Ma (M1 mining).

• Ta = -40ºC to +70ºC

• Zone 1 / Zone 21 mounting

(Zone 0 / Zone 20 with a suitable Ex ia Power Supply)

The 9476-ET(G) is an Intrinsically Safe (IS) 6-Port Managed Ether

net Switch suitable for Zone 1 / Zone 21 mounting, (Zone 0 / Zone 20

with a suitable Ex ia Power Supply).

The 6x RJ45 (LAN) ports support 10/100/1000 IS Ethernet connections.

Available in 6 Port Gigabit and also Mixed Gigabit and 10/100 + PoEx

versions to suit various applications.

Power (12V DC) is supplied to the module locally along with Power

over Ethernet (PoEx) for the connected devices where required.

Note: PoEx not available on Gigabit ports

The compact and cost effective design makes it the ideal choice for

many applications:

Petrochem –

Mining –

Process Monitoring & Control…

Underground Communication

Links,PLC and Machine Monitoring…

Electrical connections are via cage-clamp and/or screw type plug/

socket terminals along with RJ45 type connectors for the Ethernet

LAN ports.

The module is supplied as a DIN-rail mounting device.

There are 2x RJ45 (LAN) ports on the Safe Area side that support

10/100/1000 standard Ethernet connections – these can allow

‘daisychaining’ of units together. The single Hazardous Area RJ45

provides an IS LAN connection

* 9478-ETG supports 10/100/1000Mbs on safe area and hazardous area ports

9478-ET supports 10/100Mbs on safe area and hazardous area ports

10/100/1000Mb* IS Ethernet twisted pair (Cat5e/6) RJ45 connection

(100metres length max.) provide total galvanic isolation (Um=253Vac)

from safe to hazardous areas.

The module operates from a single supply in the Safe Area

of 10…30Vdc at approx. 24V @ 110mA or 12V @ 200mA.

The compact and cost effective design makes it the ideal choice for

many applications:

Petrochem –

Mining –

Process Monitoring, Galvanic Isolation…

Underground Communication Links,

Machine Monitoring….

Electrical connections are via cage-clamp and/or screw type plug/

socket terminals along with RJ45 type connectors for the Ethernet

LAN ports.

9478-ETG MTL Intrinsically Safe Gigabit* Ethernet Galvanic Isolator

• Intrinsically Safe ATEX / UKEX / IECEx Certification /

North America (METC/US) approval

• Galvanically Isolated Safe and Hazardous Area Ports

• Dual Port Switch 10/100/1000Mbs LAN

(daisy-chain capability)

• Single IS Ethernet Switch Port 10/100/1000Mbs* LAN

• Safe and Hazardous sides link independently with

auto- negotiation

• Status LEDs

• Single 12V/24VDC (10-30V) supply

• Compact dimensions (W: 42 x H: 160 x D: 140 mm)

• [Ex ia Ga] IIB, [Ex ia Da] IIIC (non-mining),[Ex ia Ma] I (M1 mining).

• Ta = -40ºC to +70ºC

• Safe Area or Zone 2 / Zone 22 mounting

The 9478-ET(G) is an Intrinsically Safe (IS) Ethernet Isolator

suitable for Safe Area or Zone 2 / Zone 22 mounting for connection to

intrinsically safe certified devices mounted in a Zone 0 location. The IS

Ethernet isolator allows the interconnection of a Zone 2 or uncertified

safe area device to the intrinsically safe 9400-ET range of Ethernet

networking products,operating in the hazardous area.

The isolating barrier provides a compact alternative solution to fibre

optic cable and media converters and for when it is desirable to use

Cat5e/6 cables in preference to fibre

Transparent operation – 10/100/1000Mbps, Full/Half Duplex with

AutoNegotiation. Supports IEEE 802.3: 10Base-T, 100Base-TX and

1000Base-TX.