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Output Circuits; 1: Relays; Mns Active Relay - Tb1; Trouble Relay - Tb2 - Honeywell ECC-50/100 Instruction Manual

Emergency command center, multipurpose emergency voice evacuation panels.
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Installation

2.6 Output Circuits

2.6.1 Relays

MNS Active Relay - TB1

The main control board provides a Form-C MNS Active relay.

Trouble Relay - TB2

The main control board provides a Form-C Trouble relay for independent, general system fault
monitoring. This relay is 'fail safe', meaning that it is normally energized. Should system power
shut off, this relay will de-energize, transferring its contacts. The Trouble Relay can be pro-
grammed to track the AC Loss Relay and transfer on AC loss conditions or ignore AC loss condi-
tions.

AC Power Loss Relay - TB3

The main control board provides a Form-C AC Power Loss relay.
36
TB1
Figure 2.12 MNS Active Relay
TB2
Shown in energized,
non trouble condition
Figure 2.13 Trouble Relay
TB3
Figure 2.14 AC Power Loss Relay
Emergency Command Center Manual — P/N LS10001-000FL-E:G 5/3/2016
Shown in normal,
Inactive condition
Shown in normal
AC Power condition
Output Circuits

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