Figure 21 Alarm Indicator Terminal Block Connections
ALARMS 50VA SELV max
NC
COM MINOR
NO
NC
COM MAJOR
NO
NC
COM CRITICAL
NO
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Step 4 Connect one set of alarm indicator wires to the alarm terminal block as follows:
a.Connect one lead to the common (COM) terminal.
b.Connect the other lead to the normally closed (NC) or normally open (NO) terminal.
Caution Figure 21 shows the wiring configuration for normally open (NO) alarm relays. If you are wiring the router in series with other equipment for the alarm indicators, use the normally closed (NC) terminals. If you are wiring the router in parallel with other equipment for the alarm indicators, use the NO terminals.
Step 5 Repeat Step 3 and Step 4 for any remaining alarm indicators.
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