System re-boot switch
The System Re-Boot switch (Figure 1) forces a manual restart of the network engine processor. All
data changes made to the system since the last time the network engine saved data are lost on
restart, including alarm, trend, and audit trail data.
Note:
Press the System Re-Boot switch only if the network engine fails to respond and cannot
be accessed by any user device. Do not press the System Re-Boot switch unless you have tried
other reasonable means to fix the problem.
Network Engine LEDs designation, normal status, description,
and other conditions
Table 2: Network Engine LEDs designation, normal status, description, and other conditions
LED
Normal
Descriptions/Other Conditions
POWER (Green)
On Steady
On Steady = Unit is getting power from either the battery or 24
VAC power. Also see the 24 VAC LED. Off Steady = Unit is shut
down.
ETHERNET (Green) Flicker
Flicker = Data is transferring on the Ethernet connection.
Ethernet traffic is general traffic (may not be for the network
engine).
Off Steady = No Ethernet traffic, probably indicates a dead
Ethernet network or bad Ethernet connection.
10/LINK (Green)
On Steady
On Steady = Ethernet connection is established at 10 Mbps.
100/1000 LINK
(Green/Yellow)
On Steady
On Steady (Green) = Ethernet connection is established at 100
Mbps.
On Steady (Yellow) = Ethernet connection is established at
1,000 Mbps.
FC A (Green)
Flicker
On Steady = Controllers are defined to FC A (FC Bus 1 or N2
Trunk 1) in the network engine, but none are communicating
(network engine transmitting only).
Flicker = Normal communications; FC A port is transmitting
and receiving data. Flickers are generally in sync with data
transmission but should not be used to indicate specific
transmission times.
Off Steady = No field controllers are defined to FC A (FC Bus 1
or N2 Trunk 1) in the network engine.
FC B (Green)
Flicker
On Steady = Controllers are defined to FC B (FC Bus 2 or N2
Trunk 2) in the network engine, but none are communicating.
(network engine transmitting only)
Flicker = Normal communications; FC B port is transmitting
and receiving data. Flickers are generally in sync with data
transmission but should not be used to indicate specific
transmission times.
Off Steady = No field controllers are defined to FC B (FC Bus 2
or N2 Trunk 2) in the network engine.
NAE55/NIE55 Installation Guide
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