RELAY CONNECTIONS
16 separate volt-free configurable changeover relays are fitted to the network module, rated at 16A
(resistive). Contact voltages should not exceed 24V DC.
Two pilot relays are also provided on the power input module, rated at 6A (resistive). Voltages should
not exceed 250V. These are factory wired to activate using relays 1 & 2 on the network module in
conjunction with the 24V DC auxiliary supply.
The relays are configured via the door mounted display. Refer to the Monitor Setup section of this
manual for more information.
Relays on the network module become energised when the monitor is powered up, pilot relays are
energised when 24V DC is applied across the 24V and 0V terminals. i.e. C and NO are linked, C and
NC are open circuit. On loss of power or an alarm situation occurs, the relays become de-energised,
i.e. C and NC are linked, C and NO are open circuit.
EXTERNAL COMMS
An RJ45 Ethernet socket is located at the base of the 3300RM2. This provides access to a local area
etwork (LAN) or wide area network (WAN).
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