Configuring Control Relays - DPS Telecom NetGuardian 420 Web User Manual

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4.3.13 Configuring Control Relays

The NetGuardian 420's 3 or 4 relays (depending on build option) can be identified and configured using the
menu > screen.
Controls
Relays are normally open (N/O) by default. A circuit board jumper can be changed for each control to make it
normally closed (N/C). Refer to
To configure your relays:
1. From the menu, select the
Edit
2. In the field enter a description for each control/relay being used.
Description
3. Set the
Energize State
state to
De-energized
4. Check the box to send an SNMP trap for that alarm point. Selecting the box will set that point to send a
Trap
SNMP trap when the relay is activated, leaving the box blank will set that point to not send an SNMP trap.
5. Under the column enter the appropriate Point Group ID
Group
6. Click
Submit Data
!
Hot Tip!
The Energize State is different than the normal state of the physical contact closure position of each relay, which is
determined by circuit board jumpers. This gives you the added benefit of being able to monitor the wire. In the
event of a power failure, the relay would de-energize back to it's normal physical contact closure set by the circuit
board jumper for that relay. Check your jumper settings and relay connections before setting to Normal or
Inverted.
Configure controls in the Edit menu > Controls screen
link.
Controls
to either or
Normal
. Selecting sets the relay's normal electrical state to
Inverted
to save the configuration settings.
. Selecting
Inverted Normal
sets the relay's normal electrical
.
Energized
Edit