Introduction; Features - Eaton Crouse-Hinds Series Instruction Manual

9661-ETW MTL Intrinsically Safe Ethernet to
serial 4 port communication module
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INM 9661-ETW Rev 1

INTRODUCTION

The 9661-ETW is an Intrinsically Safe (IS) Ethernet to Serial 4 Port Communication Module
suitable for Zone 0 mounting 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 either Wi-Fi (WLAN) or a Cat5/6 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 2 RJ45 (LAN) ports that support
10/100 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
the LAN port - This requires the PoEx output to be wired to the Supply Input terminals by the
user.
The compact and cost effective design makes it the ideal choice for many applications
such as Petrochemical - Process Monitoring, Legacy Systems and Mining - Underground
Communication Links, Machine Monitoring and Legacy Systems.
Electrical connections are made via cage-clamp plug/socket terminals along with a dual RJ45 type
connector for the Ethernet LAN ports. Twin SMA Style RF connectors allow one or two antenna
to be connected as required.

FEATURES

• Intrinsically Safe ATEX / IECEx certification
• 4 Communication Ports - RS232/485/422 (2 & 4 Wire)
• Serial Modbus Protocol
• Bluetooth Dual Mode V2.1 +EDR and V4.0 (Future development option)
• Wi-Fi supporting 802.11 a/b/g/n standards (2.4 & 5 GHz)
• Micro Access Point (Future development option)
• Dual Port Switch 10/100Mb LAN (daisy-chain capability)
• LAN or Wi-Fi to Serial comms
• Wi-Fi, Bluetooth & LAN co-existence
• Modbus/TCP <-> Modbus/RTU (or ASCII) Protocol
• Compact design
• Certified for a variety of applications including Mining
• Zone 0 mounting
• Connection into Zone 0 Gas or Zone 20 Dust Hazardous Areas
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