Net Safety Monitoring Inc.
MLP-A/AR/AD-ST1400-25
5
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
Terminal
Sensor
Option Board
Board
Board
Solid State Relay Board
Fault
+
-
Low
+
-
High
+
-
Electromechancial Relay Board
FNO
F
AULT
normally open
FCOM
common
FNC
normally closed
LNO
L
OW
normally open
LCOM
common
LNC
normally closed
HNO
H
IGH
normally open
HCOM
common
HNC
normally closed
Modbus Terminals
A
B
COM
Shld
Summary of Contents for Millennium MLP-A-ST1400-25
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