Powering And Grounding; Connecting The Ethernet; Wiring Inputs - Quest Controls TELSEC MP1 User Manual

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3.2 Powering and Grounding

3.2.1

Powering the MP1

Follow all national and local electrical codes when powering the MP1. Quest recommends a minimum

of 18 AWG conductor for powering. The TELSEC

at 48 VDC). The power input is isolated from the rest of the system and will work on either a positive or

negative DC system. Connect the power source to the MP1 observing the polarity markings on the

enclosure. Quest recommends fusing the power source at 1 A. Reverse polarity will not damage the

unit, but it will not operate until corrected. It is recommended that all input wiring be completed with

no power to the system. The terminals are spring loaded. Press on the orange button to release the

spring and then insert the wire. Turn on power once all wiring is verified.

3.2.2

Removing the Battery Insulator

The MP1 is shipped with an insulator to keep the battery disengaged from the system. Remove the

insulator once the unit is permanently powered, by pulling the tab in front of the unit. The system uses

the battery to save the system time and input timer status.

3.2.3

Grounding the MP1

There is a ground terminal on the power connector. Place a ground wire using a minimum 12 AWG

conductor from the Electrical panel ground bus (or other approved grounding point) to the ground

terminal on the MP1. Follow national and local codes and practices for properly grounding the system.

Use a standard Cat5 Ethernet cable to connect the MP1 to the local switch or hub. Configure the switch

port to auto speed detect and auto negotiation. A green LED link light on the ethernet jack will be

illuminated when a physical link has been established. The amber LED on the ethernet jack will be

illuminated when the connection is 100Mb and off if the connection is 10Mb.

Wire each input to be used between the input terminal (1-6) and a common terminal (C). Refer to the

silkscreen on the enclosure for location of each input and common terminal. The terminals support 16-

24 AWG wire and are spring loaded. Press on white button to release the spring and then insert the

wire. The inputs will support any sensor that is a 10k Type III thermistor: 0-6 VDC or 0-20 mA analog

sensors. In addition, the system accepts dry contact closures or wet contact closures up to 65 VDC.

Rev 3.0 9/15/22

MP1 will operate from 18-60 VDC power (50 mA max

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TELSEC

MP1 User Guide

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