SM45-55-AI ![SM45-55-AI is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | FSM Safety Manual - Analogue Input Modules | Safety Manual |
SM45-55-AO ![SM45-55-AO is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | FSM Safety Manual - Analogue Output Modules | Safety Manual |
SM45-55-BI ![SM45-55-BI is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | FSM Safety Manual - Binary Input Modules | Safety Manual |
SM45-55-SAD ![SM45-55-SAD is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | FSM Safety Manual - Solenoid / Alarm Driver Modules | Safety Manual |
1. Intro |
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INA4500 | MTL4500 Series Safety Instructions (ATEX) | Manual |
INM4500-4600 | MTL4500/4600 Series Instruction Manual | Manual |
MTL4500-5500-ACC | Backplanes, Enclosures & Accessories | Datasheet |
MTL4500-5500-CS | Common Specifications | Datasheet |
MTL4500-5500-DS | MTL4500-5500 Series Data Set | Datasheet |
2. Digital Input |
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MTL4501-SR ![MTL4501-SR is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 1ch DI failsafe solid-state output + LFD alarm | Datasheet |
MTL4504 ![MTL4504 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 1ch DI relay output + LFD alarm + phase reversal | Datasheet |
MTL4510 | 4ch DI solid-state output | Datasheet |
MTL4510B | 4ch DI multifunction solid-state output | Datasheet |
MTL4511 ![MTL4511 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 1ch DI relay output | Datasheet |
MTL4513 | 2ch DI solid-state output | Datasheet |
MTL4514/B ![MTL4514/B is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 1ch DI relay output + LFD alarm | Datasheet |
MTL4514D ![MTL4514D is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 1ch switch/prox input, dual output relay | Datasheet |
MTL4516 ![MTL4516 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 2ch DI relay output | Datasheet |
MTL4516C ![MTL4516C is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 2ch DI with changeover relay output | Datasheet |
MTL4517 ![MTL4517 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 2ch DI relay output + LFD alarm | Datasheet |
3. Digital Output |
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MTL4521 ![MTL4521 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | Loop powered solenoid driver | Datasheet |
MTL4521L ![MTL4521L is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | loop powered solenoid driver IIC | Datasheet |
MTL4523 ![MTL4523 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | Solenoid driver with LFD | Datasheet |
MTL4523L ![MTL4523L is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | Loop powered solenoid driver + LFD | Datasheet |
MTL4523R ![MTL4523R is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | Solenoid driver with LFD | Datasheet |
MTL4523V - VL ![MTL4523V - VL is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | Solenoid/Alarm driver with voltage control | Datasheet |
MTL4524 ![MTL4524 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | Switch operated solenoid driver | Datasheet |
MTL4524S ![MTL4524S is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | Switch operated solenoid driver, 24V override | Datasheet |
MTL4525 ![MTL4525 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | Switch operated solenoid driver low power | Datasheet |
MTL4526 | 2ch switch operated relay | Datasheet |
4. Analogue Input |
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MTL4541 ![MTL4541 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 1ch 2/3 wire Transmitter repeater | Datasheet |
MTL4541A | 1ch Transmitter repeater, passive input | Datasheet |
MTL4541AS | 1ch Transmitter repeater, passive input, current sink | Datasheet |
MTL4541B ![MTL4541B is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | MTL4041B replacement | Datasheet |
MTL4541P | MTL4041P replacement | Datasheet |
MTL4541S ![MTL4541S is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 1ch 2/3 wire Transmitter repeater, current sink | Datasheet |
MTL4541T | 2/3 wire Transmitter repeater | Datasheet |
MTL4544 ![MTL4544 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 2ch 2/3 wire Transmitter repeater | Datasheet |
MTL4544A | 2ch Transmitter repeater, passive input | Datasheet |
MTL4544AS | 2ch Transmitter repeater, passive input, current sink | Datasheet |
MTL4544B | MTL4044 replacement | Datasheet |
MTL4544D ![MTL4544D is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 2/3 wire transmitter repeater, dual output | Datasheet |
MTL4544S ![MTL4544S is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 2ch 2/3 transmitter repeater, current sink | Datasheet |
5. Analogue Output |
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MTL4546 ![MTL4546 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 1ch 4-20mA smart isolating driver + LFD | Datasheet |
MTL4546C ![MTL4546C is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 1ch 4-20mA smart isolating driver + oc LFD | Datasheet |
MTL4546S | 1ch 4-20mA HART isolating driver + LFD | Datasheet |
MTL4546Y ![MTL4546Y is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 1ch 4-20mA smart isolating driver + oc LFD | Datasheet |
MTL4549 ![MTL4549 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 2ch 4-20mA smart isolating driver + LFD | Datasheet |
MTL4549C ![MTL4549C is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 2ch 4-20mA smart isolating driver + oc LFD | Datasheet |
MTL4549Y ![MTL4549Y is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 2ch 4-20mA smart isolating driver + oc LFD | Datasheet |
6. Temperature Input |
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MTL4573 | 1ch Temperature converter, RTD / THC | Datasheet |
MTL4575 | 1ch Temperature converter, RTD / THC with alarm | Datasheet |
MTL4576-RTD | 2ch Temperature converter, RTD | Datasheet |
MTL4576-THC | 2ch Temperature converter, THC | Datasheet |
MTL4581 | 1ch mV/THC isolator for low-level signals | Datasheet |
7. Pulse and Vibration |
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MTL4531 | 1ch vibration probe interface | Datasheet |
MTL4532 | 1ch pulse isolator, digital or analogue output | Datasheet |
8. Fire and Smoke |
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MTL4561 ![MTL4561 is FSM](http://www.mtl-inst.com/images/layout/fsmlogo.gif) | 2ch loop-powered, for fire and smoke detectors | Datasheet |
9. General |
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MTL4599 | Dummy isolator | Datasheet |
MTL4599N | General purpose feed-through module | Datasheet |