Millennium Enterprises MLP-A/AR Board Assembly, Solid State Relay Board, Modbus Terminals

Models: AD-ST1400-25 MLP-A/AR

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Board Assembly

Net Safety Monitoring Inc.

Board Assembly

There are three different fixed boards, two optional relay boards and an optional Modbus board which make up the PCB Assembly. Depending upon requirements, either a Electromechanical or Solid State Relay Board module can be used. Boards are field replaceable. Simply loosen the three locking standoffs, remove one board, insert the other board and tighten screws.

Note: Boards are susceptible to ESD. Refer to Appendix A, "Electrostatic Sensitive Device (ESD)", on page 20.

Figure 4: Millennium Module Boards

Solid State Relay Board

Fault

+

-

Low

+

-

High

+

-

Electromechancial Relay Board

FNO

AULT

normally open

FCOM

common

 

F

 

FNC

normally closed

 

LNO

OW

normally open

LCOM

common

L

LNC

normally closed

 

HNO

IGH

normally open

HCOM

common

H

HNC

normally closed

 

Terminal

Board

Option Board

Sensor

Board

Modbus Terminals

A

B

COM

Shld

MLP-A/AR/AD-ST1400-25

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Millennium Enterprises MLP-A/AR Board Assembly, Solid State Relay Board, Electromechancial Relay Board, Modbus Terminals