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CONTENTS
  DECLARATION OF CONFORMITY ......................................................II
  IMPORTANT NOTE ................................................................. V      
  ATEX SAFETY INSTRUCTIONS .......................................................VI
1  INTRODUCTION ....................................................................1
2  DESCRIPTION ......................................................................1
3  INSTALLATION .....................................................................2
3.1   Modules – pre-installation .................................................................3
3.2  Installing columns of isolators .............................................................4
4  ACCESSORIES  .....................................................................6
4.1  MTL5500 power bus - Installation and use  ...................................................6
4.2  MPA5500 AC power adaptor ...............................................................7
4.3  Earth rail and tagging accessories  ..........................................................8
5  DX ENCLOSURES ..................................................................12
5.1  Environmental conditions ................................................................12
5.2  Mounting ..............................................................................16
5.3  Accessories in enclosures   ...............................................................17
5.4  IS warning label ........................................................................17
6  UNIT DESCRIPTIONS, SETTING-UP AND CONNECTIONS .................................18
6.1  Digital Input modules  ...................................................................19
6.1.1  Phase reversal ..........................................................................19
6.1.2  Line-Fault Detection (LFD) ................................................................19
6.1.3  MTL5501-SR - Fail-safe Switch/Proximity detector interface  .......................................20
6.1.4  MTL5510 & MTL5510B - Switch/Proximity detector interface ......................................21
6.1.5  MTL5511 - Switch/Proximity detector interface  .................................................25
6.1.6  MTL5513 - Switch/Proximity detector interface .................................................26
6.1.7  MTL5514/ MTL5514D/MTL5514-T  - Switch/Proximity detector interface .............................27
6.1.8  MTL5516C - Switch/Proximity detector interface ................................................28
6.1.9  MTL5517 - Switch/Proximity detector interface .................................................29
6.2  Digital Output modules ..................................................................30
6.2.1  MTL5521/MTL5521-T  - Solenoid Alarm driver ..................................................30
6.2.2  MTL5522 -  Solenoid  Alarm  driver ............................................................31
6.2.3  MTL5523 -  Solenoid  Alarm  driver ............................................................32
6.2.4  MTL5523V/MTL5523VL -  Solenoid  Alarm  driver .................................................33
6.2.5  MTL5524 -  Solenoid  Alarm  driver ............................................................34
6.2.6  MTL5525 -  Solenoid  Alarm  driver ............................................................35
6.2.7  MTL5526 - Switch Operated Relay ...........................................................36
6.3  Pulse and Vibration modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
6.3.1  MTL5531 -  Vibration  Transducer  Interface ......................................................37
6.3.2  MTL5532 - Pulse Isolator  ..................................................................38
6.3.3  MTL5533 -  Vibration  Transducer  Interface ......................................................40
6.4  Analogue Input modules .................................................................41
6.4.1  MTL5541/MTL5541S/MTL5541S-T  - Repeater Power Supply ......................................41
6.4.2  MTL5541A/MTL5541AS - Repeater Power Supply ...............................................42
6.4.3  MTL5544/MTL5544S - Repeater Power Supply .................................................43
6.4.4  MTL5544A/MTL5544AS - Current Repeater ....................................................44
6.4.5  MTL5544D - Repeater Power Supply .........................................................45
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