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April 29, 2026 BY
IN Eaton

Eaton MTL4500/MTL5500 Variant Description

Variant Description

Functionally the MTL4500 and MTL5500 range of modules are the same but differ in the following way:

– the MTL4500 modules are designed for backplane mounted applications- the MTL5500 modules are

designed for DIN rail mounting.

In both models the hazardous area field-wiring connections (terminals 1-2. and 4-5) are made through the

removable blue connectors on the top of the modules, but the safe area and power connections for the MTL454x

modules are made through the connector on the base, while the MTL554x uses the removable grey connectors

on the top and side of the module.

Note that the safe-area connection terminal numbers differ between the backplane and DIN-rail mounting models.

The analogue output models covered by this manual are:

MTL4546 and MTL5546    single channel, open and short cct LFD

MTL4546C, MTL4546Y, and MTL5546Y    single channel, open cct LFD

MTL4549. and MTL5549    dual channel, open and short cct LFD

MTL4549C, MTL4549Y, and MTL5549Y    dual channel, open cct LFD
April 29, 2026 BY
IN Eaton

Eaton The MTL454x and MTL554x are isolator modules

INTRODUCTION

Application and function

The MTL454x and MTL554x are isolator modules which enable an analogue 4/20mA control signal to be

passed to a device located in a hazardous area from a safe area. The output current available to the hazardous

area is limited to comply with the requirements of the process explosion hazard. The modules are also

designed and assessed according to IEC 61508 for use in safety instrumented systems up to SIL2 when

the required function is to repeat the loop current within ±2%, and the safe state of the output is <3.6mA

(downscale). Higher integrity levels for a SIF can be achieved by using the modules in a voting architecture.

For ‘smart’ valve positioners using the HART protocol the units allow bi-directional communications

superimposed on the 4/20mA signal current.

There are no configuration switches or operator controls to be set on the modules – they perform a fixed

function related to the model selected. The MTLx546 models are single channel while the MTLx549 models

are dual channel, although both channels must not be used in the same safety instrumented function.

These modules are members of the MTL4500 and MTL5500 range of products.
April 27, 2026 BY
IN OEMAX

OEMAX NX70 Series System Configuration

• WinGPC as programming tool

WinGPC, designed for processor control, lets you create,

modify, force I/O, download, and upload the program. It is a

powerful, easy-to-use programming tool.

• Various I/O base options (up to 12 slots)

NX series PLC allows you to choose a backplane from 2. 3. 5. 6.

8. 10. or 12 slots for maximum system configuration flexibility.

• Built-in RS232C/RS485. 2 ports (NX70-CPU70p2 module)

With two built-in communication ports, the CPU70p2 module

allows you to connect directly to computers or touch panels and

exchange a high volume of data at high speed. The COM2 port

supports a simple user-defined communication, and allows you

to connect to barcode readers, inverters, or servo motors.

(Binary communication is available.)

Basic configurations and I/O

• Flexible system configuration: 7 types of backplane (2-, 3-, 5-, 6-,

8-, 10- and 12-slot)

The  NX70 PLC has 7 types of backplane (2-, 3-, 5-, 6-, 8-, 10 and

12-slot type), providing you with very flexible I/O configuration.

All backplane, I/O, power supply, and specialty modules are

available regardless of processor type.

• Maximum 384 I/O points

With 12-slot NX70 PLC, you can use up to 384 I/O points (using

32-point module). With terminal block type, up to 192 points are

available (using 16-point module).

The backplane may have to be replaced when expanding the

number of modules.
April 27, 2026 BY
IN OEMAX

OEMAX NX70 Series PLC Features

System configuration

Features

• High-speed processing

With the high-speed ASIC, the NX70 processes basic

instructions at a speed of 0.2 µs per step.

• Runtime Editing

The NX70 processor module allows you to modify instructions

while operating.

• Built-In Real Time Clock (RTC)

Built-in real time clock supports programming by time and date.

(Supported only for the NX70-CPU70p2 module.)

• High-capacity programming and memory backup

The NX70 module allows you to program up to 20K words for

NX70_CPU70p2. and 9.6k words for NX70_CPU70p1. Built-in

flash EEPROM allows you to save programs separately.

• Self-diagnostics

Self-diagnostics allows you to minimize system errors and

maximize diagnostic efficiency.

• Maximum 384 I/O points

With 12-slot processor module, you can use up to 384 I/O points

(with terminal block type, 192 points).

• Supports various I/O and specialty modules

The NX70 processor module supports 24V dc input (16/32

points), 110V ac input, 220V ac input, relay output, transistor

output (16/32 points), SSR output, A/D (4 channels), D/A (4

channels), RTD (4 channels), TC (4 channels), high-speed

counter, and SCU.
April 27, 2026 BY
IN OEMAX

OEMAX NX-CPU700p System Configuration

• WinGPC as programming tool

WinGPC, which is the programming tool for NX-CPU700p

processor module, lets you create, edit, download, and upload

your control program, and allows you to peform processor

status monitoring, force I/O, and I/O status montioring as well. It

is a powerful, easy-to-use programming tool.

• Various I/O backplane options (up to 12 slots)

The NX-CPU700p PLC allows you to choose one from

3-, 5-, 8-, 10-, or 12-slot backplanes for maximum system

configuration flexibility.

• Built-in RS232C/RS485. 2 ports

With two built-in communication ports, the NX-CPU700p

processor module allows you to connect directly to computers

or touch panels and exchange a high volume of data at high

speed. The COM2 port supports a simple user-defined

communication, and allows you to connect to barcode readers,

inverters, or servo motors. (Binary communication is available.)

• Flexible system configuration: 5 types of backplane (3-, 5-, 8-, 10-

and 12-slot)

The  NX-CPU700p PLC has 5 types of backplane (3-, 5-, 8-, 10 and

12-slot type), providing you with very flexible I/O configuration.

All backplanes, I/O modules, power supply, and specialty

modules are available to other NX700 series PLC systems, for

example, NX-CPU700 or NX-CPU750A system.

• Maximum 1600 I/O points

With a 12-slot base backplane and a 12-slot expansion

backplane, you can use up to 1600 I/O points by configuring

all I/Os with 64-point digital I/O modules.
April 27, 2026 BY
IN OEMAX

OEMAX NX-CPU700p PLC Features

System configuration

Features

• High-speed processing

With the high-speed ASIC, the NX-CPU700p processes basic

instructions at a speed of 0.2 µs per step.

• Runtime Editing

The NX-CPU700p processor module allows you to modify

instructions while operating.

• Built-In Real Time Clock (RTC)

Built-in real time clock supports programming by time and date.

• High-capacity programming and memory backup

The NX-CPU700p allows you to program up to 20K words.

Built-in flash EEPROM allows you to save programs separately.

• Self-diagnostics

Self-diagnostics allows you to minimize system errors and

maximize diagnostic efficiency.

• Maximum 1600 I/O points

With a 12-slot base backplane and a 12-slot expansion

backplane, you can use up to 1600 I/O points (when all I/Os are

configured with 64-point digital I/O modules).

• Supports various I/O and specialty modules

The NX-CPU700p processor module supports 24V dc input (16.

32. and 64 points), 110V ac input, 220V ac input, relay output,

transistor output (16. 32. and 64 points), SSR output, A/D, D/A,

RTD, TC, high-speed counter, CCU+, and SCU.
April 27, 2026 BY
IN ICS TRIPLEX

ICS TRIPLEX T8200 Trusted High Integrity Power Supply System

Trusted High Integrity Power Supply System

(110-240 Vac and 24 Vdc)

Product Overview 

The Trusted® power supply assembly converts redundant main line voltages of either 110

Vac / 240 Vac or 24 Vdc, to +15 Vdc or +24 Vdc output power for system and field power

requirements.

Features:

• Redundant power inputs.

• 250 W.

• Hot replaceable.

• Current sharing.

• Power factor correction.

• Front panel indicators for input, output voltage status and output current level on each

module.

• External status signals.

• TϋV Certified IEC 61508 SIL 3.

Description

The Power Supply Assembly consists of a Power Supply Chassis containing up to six Power

Supply Modules. The Chassis may be configured to distribute power in various

combinations. For example, a Chassis containing six Power Supply Modules may be set up

with three Modules providing triplicated power for Regent+Plus Input/Output (I/O)

assemblies and three Modules providing field power in a N+1 configuration. Alternatively,

the Chassis may be set up to provide separate dual 24 Vdc supplies for both a Trusted

System and associated field devices.

Power Supply Chassis

The Power Supply Chassis houses a maximum of six Power Supply Modules. It may be

mounted in a 19-inch rack or flush mounted on a panel. Table 1 identifies the available

types of Chassis.
April 27, 2026 BY
IN ICS TRIPLEX

ICS TRIPLEX TC200 The maximum recommended I/O cable length is 15 m

The maximum recommended I/O cable length is 15 m. Cables longer than this may be specified if 

necessary but may suffer from voltage drop, offset, crosstalk and noise and will present materials 

handling problems.  

Internal cables are designed for cables where they are terminated in adjacent enclosures. If the 

cable needs to leave the enclosure environment, the external cable has more protection. Note that 

the ‘external’ cables are not armoured and are not suitable for truly external use and must still be 

treated with care. These cables will need protection when drawn through a cable route, and should 

also not be pulled by the connector(s). They should enter cabinets through transit/compression 

blocks and cannot be glanded. 

The Companion Slot cables described in this document allow hot-swap modules to be sited in 

adjacent slots using a double width chassis socket. For SmartSlot cables, allowing a remote slot to 

be assigned as necessary for a hot-swap, refer to Trusted I/O SmartSlot Cables, publication ICSTT

RM313 (PD-TC500). 
April 27, 2026 BY
IN ICS TRIPLEX

ICS TRIPLEX TC200 Trusted I/O Companion Slot Cables 

Trusted I/O Companion Slot Cables 

Product Overview 

This document provides detailed information for the types of Trusted® input/output (I/O) Cables 

available within the Companion Slot group. These types of cable provide connection facilities 

between the Trusted analogue and digital I/O modules, and Trusted Field Termination Assemblies 

(FTAs) or Trusted Versatile Field Termination Assemblies (VFTAs) as required. Cables are also 

available with a ‘flying lead’ at one end to allow connection to conditioned terminals. 

The types of Trusted I/O Companion Slot Cables currently available are listed in Table 1 on page 4. 

The cables are manufactured to user’s requirements; therefore length and type of cable insulation 

must be specified. Length must be specified to the nearest 0.5 m in the format xmx, e.g. 2m0 for a 

cable length of 2.0 m. This detail must be added to the end of the part number. Note that some 

cable lengths are preferred options and may be easier to obtain; please refer to Rockwell 

Automation for details. The type of cable insulation forms part of the cable part number and is 

denoted by 02 for Low Smoke Zero Halogen (LSZH) or 03 for UL Certified cable material. 02 is also 

flame retardant to IEC 60332-3 Cat A. When ordering cables, it is recommended that the user 

supplies the details as shown in Table 1. 
April 27, 2026 BY
IN ICS TRIPLEX

ICS TRIPLEX Trusted 40 Channel Analogue Output

Description 

The Trusted 40 Channel Analogue Output or Digital Output FTA T8850 provides termination 

for a maximum of 40 output field loops. The 40 channels are arranged in five groups each 

comprising eight identical channels.  

Indication of the presence of the field power supply is provided by a green LED (one for each 

power group). 

The signal to the field device is routed through the FTA from the output module. 

The cable linking the 40 channels on the output module to the FTA is terminated at the 96

way socket JDH2. SmartSlot (Version 1) signals from the module are also connected to JDH1. 

The dc field power supplies can be connected to the FTA via a 10-way terminal block P1. The 

output signals to the field (40-off) are connected by 2-wire arrangements terminated on the 

dual height terminal blocks TB2.

Installation 

Trusted 40 Channel Analogue Output or Digital Output FTA T8850 is designed to be 

mounted on either of the TS32 or TS35 DIN rails in the horizontal or vertical positions as 

required.

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